USS Advent (AM-83)

Evidence

15 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-15).

1. [1]DANFS, 'Advent' (AM-83) - official NHHC text verified via Wayback capture (2021-09-22) of history.navy.mil/research/histories/ship-histories/danfs/a/advent.html (live NHHC page 404s - standing link rot), cross-checked against the losthistory/hazegray verbatim mirror [nhhc_danfs]

   Locator

   DANFS 'Advent' entry, specifications block + service narrative (Wayback capture of official NHHC page; mirror: losthistory.net/hazegray/danfs/mine/am83.htm)

   Finding type

   vessel_history

   Finding

   Official DANFS record for this hull: spec block 'AM-83: dp. 295; l. 173'8"; b. 23'; dr. 6'6"; s. 16 k.; cpl. 65; a. 1 3", 1 40mm.; cl. Adroit'. Laid down 18 August 1941 at Portland, Oreg., by the Commercial Iron Works; launched 12 March 1942; commissioned 19 August 1942, Lt. K. A. Tuttle in command. Served on escort and patrol duty in the South and West Pacific throughout WWII: Noumea, New Caledonia, convoy screening 2 May - 8 October 1943 (ports incl. Espiritu Santo, Sydney, Tongatapu, Efate, Guadalcanal); base shifted to Guadalcanal mid-October 1943 with runs to Espiritu Santo, the Treasury Islands, Noumea, Efate, Bougainville, Sydney, and Ulithi. 'On 1 June 1944, the name Advent was dropped, and the ship was designated PC-1587.' As PC-1587: based at Espiritu Santo late August - mid-October 1944 (11 October rescue of a downed PBY's crew); Guadalcanal November; Ulithi from 4 December; five convoy runs to Kossol Roads, Palau Islands, and one to Guam by April 1945; patrol duty at Saipan from April; convoy escort to Iwo Jima, the Bonin Islands, Guam, and Tinian. Departed 17 October 1945 via Eniwetok and Pearl Harbor; anchored San Francisco Bay 13 November 1945. Decommissioned 22 January 1946; struck from the Navy list 25 February 1946; transferred to the Maritime Commission 18 March 1948 for disposal.

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1941-1948

   Population

   Commercial Iron Works construction trades (1941-42); wartime crew (design complement 65)

   Limitations

   DANFS documents identity, builder, dates, service narrative, the AM-to-PC redesignation, and disposal-path - not materials or asbestos content. The official text is silent on name origin, sponsor, battle stars (none recorded), ordered date, and the post-1948 disposal outcome ('for disposal' is the last official word). DANFS's 19 Aug 1942 commissioning and 22 Jan 1946 decommissioning dates conflict with NavSource/uboat prints (ev-07).

   Atlas source

   true

   Evidence ID

   ev-uss-advent-am83-01

2. [2]NavSource Online: Mine Warfare Vessel Photo Archive - PC-1587 ex-Advent (AM 83), file 11/02083 [other_primary]

   Locator

   NavSource 11/02083 - chronology block, specifications block, propulsion line, seven-officer CO roster

   Finding type

   vessel_history

   Finding

   NavSource per-hull record: 'Adroit Class Minesweeper'; call sign Nan-Baker-Sugar-Charlie; 'Laid down 18 August 1941 by the Commercial Iron Works, Portland, OR'; launched 12 March 1942; 'Commissioned USS Advent (AM 83), 15 August 1942' (its own CO roster starts Tuttle 19 August - see ev-07); 'Reclassified as a Submarine Chaser, PC-1587, 1 June 1944'; 'Decommissioned 12 January 1946' (vs DANFS 22 January - ev-07); 'Struck from the Naval Register 25 February 1946'; 'Transferred to the Maritime Commission for disposal 18 March 1948'; 'Fate unknown.' Spec block: 295 t.; 173'8"; 23' beam; 6'6" draft; 16 kts.; complement 65; armament one 3"/50 dual-purpose mount, one 40mm mount, two depth-charge projectors; propulsion 'Two 900hp Cooper Bessemer GNB8 diesel engines, Farrel-Birmingham single reduction gear, two shafts.' CO roster: LCDR Kenneth Albert Tuttle, USNR (19 Aug 1942 - 15 Apr 1943); LT John Charles Sellers, USNR, XO acting CO (15 Apr - 24 May 1943); LT Francis George Moore, USNR (24 May - 16 Oct 1943); LT Franklyn Samuel Wooster, USN (16 Oct 1943 - 27 Aug 1944); LT Dudley N. Perrine, USNR (27 Aug - 1 Dec 1944); LT Grant Curry, Jr., USNR (1 Dec 1944 - 21 Nov 1945); LTJG Charles Melvin Herman, USN (21 Nov 1945 - 22 Jan 1946 - the DANFS decommissioning date, inconsistent with NavSource's own 12 Jan chronology line).

   Verification

   partial

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1941-1948

   Population

   Commercial Iron Works trades (1941-42); U.S. crew Aug 1942 - Jan 1946

   Limitations

   Specialist secondary compilation - detailed but non-official. The 15 Aug 1942 commissioning line conflicts with DANFS and with NavSource's own CO roster (Tuttle from 19 Aug); the 12 Jan 1946 decommissioning line conflicts with DANFS's 22 Jan while its last CO tour ends 22 Jan 1946 - internally inconsistent. 'Fate unknown' documents that the post-1948 disposal is unresolved at this level. No photographs of PC-1587 held. Contains no asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-advent-am83-02

3. [3]Shipbuilding History (Tim Colton compilation), 'Commercial Iron Works' yard table - hull #35 row (AM 83 Advent) + yard history header [other_primary]

   Locator

   shipbuildinghistory.com/shipyards/small/commercial.htm - hull #35 row (AM 83 Advent); yard history header

   Finding type

   vessel_history

   Finding

   Yard-table row for this hull: Commercial Iron Works yard hull #35, 'AM 83 | Advent | US Navy | Minesweeper | 1,250 | 174 | 19-Aug-42 | Later PC 1587, struck 1946' - corroborates builder yard, type, and the 19 Aug 1942 commissioning date (matching DANFS, against NavSource's 15 Aug line and uboat's 28 Jul). Yard history: Commercial Iron Works 'was started in November 1916, by William T. Casey, Otto J. Hoak and Robert Boogs, on a 30-acre site just south of the Ross Island Bridge. It closed in 1946, after building an astonishing 188 boats during the course of WWII. The site was sold to Zidell Marine as a ship dismantling facility.'

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1941-1946

   Population

   Commercial Iron Works construction workforce (Portland, 1941-42)

   Limitations

   Compiler's yard table, secondary - corroborates builder, yard hull number (#35), delivery/commissioning month, type, and the PC-1587 conversion. The '1,250' column is the table's contract-series figure, unexplained at this level; '188 boats' conflicts modestly with Zidell's own '185 ships' history (ev-06) - flagged in ev-07. Contains no asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-advent-am83-03

4. [4]uboat.net Allied Warships of WWII - USS Advent (AM 83), ship 9246 [other_primary]

   Locator

   uboat.net/allies/warships/ship/9246.html - data table, CO list, notable-events section

   Finding type

   vessel_history

   Finding

   uboat.net per-hull record: Adroit-class minesweeper AM 83; 'Built by Commercial Iron Works (Portland, Oregon, U.S.A.)'; ordered 1 Apr 1941; laid down 18 Aug 1941; launched 12 Mar 1942; commissioned 28 Jul 1942; end of service 12 Jan 1946; history line 'Reclassified as patrol craft PC-1587 on 1 June 1944. Decommissioned on 12 January 1945. Stricken on 25 February 1946.' CO roster corroborates NavSource's names with different dates (Tuttle 28 Jul 1942 - 10 Apr 1943; Sellers; Moore; Wooster; Perrine to 12 Jul 1945; Curry). Notable event: 2 Jul 1945 - USS Lionfish and USS Kingfish departed Guam for patrol areas 'escorted until 2030K/2 by USS PC-1587 (Lt. D.N. Perrine, USNR).'

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1941-1946

   Population

   Wartime crew (secondary roster)

   Limitations

   Specialist secondary compilation - corroborates builder, dates, the PC-1587 conversion, and a documented operational event (the 2 Jul 1945 Guam submarine escort). Defects flagged in ev-07: 'commissioned 28 Jul 1942' conflicts with DANFS's 19 Aug; the history line prints 'Decommissioned on 12 January 1945' while its own end-of-service field prints 12 Jan 1946 - an internal typo; 'ordered 1 Apr 1941' is secondary-only and unverified against a primary contract record - not carried into record fields. Contains no asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-advent-am83-04

5. [5]HyperWar/ibiblio 'Ships of the U.S. Navy, 1940-1945' - PC-1587 (USS Advent) stub + USN Sub Chasers table (PC-1586 class) [other_primary]

   Locator

   ibiblio.org/hyperwar/USN/ships/PC/PC-1587.html stub; ibiblio.org/hyperwar/USN/ships/ships-sc.html PC-1586-class table (via Wayback capture)

   Finding type

   vessel_history

   Finding

   HyperWar compilation stub for this hull's post-conversion configuration: 'PC-1586 Submarine Chaser (ex Adroit Class Minesweeper): Displacement 450 tons; Length 173'8"; Beam 23'; Draft 11'7"; Speed 17 knots; Armament 1 3"/50, 1 40mm; Complement 105; Cooper Bessemer diesel engine, twin screws, 1,770 shaft hp. Built at Commercial Iron Works and commissioned as AM-83 1942. Converted to Sub Chaser (PC-1587) 1944.' The companion Sub Chasers table documents the class-wide conversion: PC-1586 through PC-1603 - all eighteen 'Converted from Minesweepers AM' in 1944 - matching the eighteen Adroit-class hulls AM-82 through AM-99; PC-1603 is noted lost to a kamikaze off Okinawa 21 May 1945.

   Verification

   verified

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1942-1946

   Population

   Crew of the PC-configuration hull (1944-46)

   Limitations

   Secondary compilation - the PC-configuration figures (450 t, 11'7" draft, 17 kts, complement 105) reflect the converted subchaser fit, not the as-built minesweeper (295 t, 6'6", 16 kts, cpl. 65) - variance flagged in ev-07, not a contradiction to silently merge. '1,770 shaft hp' is the combined-plant figure vs NavSource's 'two 900hp' per-engine print. Contains no asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-advent-am83-05

6. [6]Daily Journal of Commerce Oregon, 'Zidell plans waterfront development' (Eli Segall, 22 Dec 2009) - former Commercial Iron Works/Zidell site remediation [reputable_press]

   Locator

   djcoregon.com article paragraphs 10-13 (contamination per DEQ) and closing paragraphs (CIW 1916 founding, 185 ships); heraldandnews.com 'Portland's Toxic Graveyard' (shipbreaking operation detail)

   Finding type

   environmental_record

   Finding

   Regional business press documents the builder site's industrial history and contamination: 'industrial uses began there in 1916, with the founding of Commercial Iron Works, which, during World War II, delivered 185 ships to the U.S. Navy from the site' (per Zidell); the 30-acre Willamette River property requires state-ordered environmental cleanup under a 2006 consent agreement with Oregon DEQ - 'PCBs and other contaminants on the site, including lead and asbestos, are in river bottoms and on the west bank of the river' (per DEQ cleanup program manager Keith Johnson). Related coverage (Herald & News/AP) documents that Zidell's ship-dismantling operation at the former CIW site became the nation's largest shipbreaking yard, burning insulation off copper wire and leaving asbestos/PCB/lead contamination.

   Verification

   verified

   Role

   context

   Documentation level

   context_only

   Accessed

   2026-09-22

   Study period

   1916-2011 (site history); 2009 (article)

   Population

   Zidell/CIW site workforce and remediation crews (site context)

   Limitations

   Site-level environmental documentation of the builder's property across decades of shipbuilding AND shipbreaking - contamination there reflects post-war dismantling of many WWII ships as well as construction-era operations. Establishes nothing about materials installed aboard AM-83 in 1941-42, and does not establish any exposure pathway between the site and this hull. The '185 ships' figure is Zidell's company history; Colton prints '188 boats' - flagged in ev-07.

   Atlas source

   true

   Evidence ID

   ev-uss-advent-am83-06

7. [7]Source-discrepancy resolution - official DANFS (Wayback NHHC capture + losthistory/hazegray mirror) vs NavSource 11/02083 vs Colton CIW #35 vs uboat.net 9246 vs HyperWar PC-1587 stub vs Wikipedia USS Advent (AM-83) and Adroit-class articles [other_primary]

   Locator

   web.archive.org capture of NHHC DANFS Advent page and losthistory.net/hazegray/danfs/mine/am83.htm vs navsource.net/archives/11/02083.htm; shipbuildinghistory.com CIW hull #35; uboat.net ship/9246; ibiblio.org/hyperwar/USN/ships/PC/PC-1587.html; en.wikipedia.org/wiki/USS_Advent_(AM-83) and Adroit-class_minesweeper

   Finding type

   historical_record

   Finding

   Source discrepancies logged, not silently merged: (a) Commissioning date - 19 August 1942 carried per DANFS, corroborated by Colton's yard table (19-Aug-42) and NavSource's own CO roster (Tuttle from 19 Aug); NavSource's chronology block prints 15 August and uboat.net prints 28 July - both flagged, unresolved at primary level. (b) Decommissioning date - 22 January 1946 carried per DANFS, consistent with NavSource's last CO tour ending 22 Jan 1946; NavSource's chronology prints 12 January 1946 and uboat prints end-service 12 Jan 1946 with a '12 January 1945' history-line typo - the 12-vs-22 January split is unresolved. (c) Configuration specs - as-built AM (DANFS/NavSource): 295 t, 6'6" draft, 16 kts, complement 65; PC conversion (HyperWar): 450 t, 11'7" draft, 17 kts, complement 105 - carried as two documented configurations, not a conflict. (d) Propulsion print - NavSource 'two 900hp Cooper Bessemer GNB8' per-engine vs Wikipedia class article '2 x 1,770 bhp' and HyperWar '1,770 shaft hp' combined; the class article also lists an alternative Busch-Sulzer BS 539 fit for the class - the Cooper Bessemer GNB8 + Farrel-Birmingham gear is carried per NavSource's hull-specific print; horsepower presentation unresolved. (e) Builder output - '185 ships' (Zidell history via DJC) vs '188 boats' (Colton) - both printed, unresolved. (f) Ordered date '1 Apr 1941' rests on uboat.net alone - secondary-only, not carried into record fields. (g) Name gloss - DANFS provides no name origin for Advent; none asserted. (h) CO-roster dating - NavSource and uboat agree on names/order (Tuttle, Sellers, Moore, Wooster, Perrine, Curry + Herman) but differ on tour dates by days-to-weeks; NavSource carried with the flag.

   Verification

   partial

   Role

   correction

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1941-1948 (records); 2026-09-22 (resolution pass)

   Limitations

   Resolves publication-level discrepancies among the official DANFS text, secondary compilations, and reference tables, adopting the better-supported values and flagging the rest. The commissioning and decommissioning date splits and the propulsion-figure presentation remain unresolved at primary level - muster rolls, deck logs, or the BuShips contract file are the resolution path (ev-15). No asbestos content in any of these sources.

   Atlas source

   true

   Evidence ID

   ev-uss-advent-am83-07

8. [8]Design/era inference anchored to NavSource 11/02083 propulsion line + DANFS spec block + Colton CIW #35 + HyperWar PC-1587 stub [other_primary]

   Locator

   NavSource 11/02083 propulsion line; DANFS spec block; Colton commercial.htm hull #35; HyperWar PC-1587 stub

   Finding type

   asbestos_application

   Finding

   Era/design inference: this hull is a 1941-42-built steel PC-461-hull minesweeper with a diesel direct-drive twin-screw plant (two Cooper Bessemer GNB8 diesels, Farrel-Birmingham single reduction gear) - no boilers, no steam distribution. Its insulation load was materially lighter than a steam combatant's, but machinery and construction materials of the wartime era were commonly asbestos-containing: exhaust-system and muffler lagging; machinery gaskets and packing; electrical-cable insulation; accommodation and galley joiner insulation; winch/windlass brake linings; deck composition; heat-resistant paints and cements around machinery spaces.

   Verification

   inferred

   Role

   supporting

   Documentation level

   class_or_era

   Accessed

   2026-09-22

   Study period

   1941-1948

   Population

   Commercial Iron Works trades (1941-42); wartime crew Aug 1942 - Jan 1946; Maritime Commission disposal workforce (1948)

   Limitations

   Inference from documented design, machinery type, and construction era - NOT a hull materials record. No survey, specification, or material schedule naming AM-83 or PC-1587 was located; establishes no asbestos content, quantity, location, condition, individual exposure, or causation. The diesel (non-steam) plant makes even era-level inference weaker than for steam vessels of the same era. The June 1944 AM-to-PC conversion refit is undocumented at materials level.

   Atlas source

   true

   Evidence ID

   ev-uss-advent-am83-08

9. [9]Declaration of Peter Neushul, Ph.D., Siegfried v. Owens-Illinois, No. 2:18-cv-01575 (C.D. Cal.) (RECAP gov.uscourts.cacd.702384.52.0) - WWII Navy/USMC fireproof-insulation requirements and Navy QPLs [court_record]

   Locator

   RECAP document 52-0, declaration paragraphs on WWII shipbuilding insulation requirements and Kaylo QPL listings

   Finding type

   asbestos_application

   Finding

   Expert declaration documents that during WWII the U.S. Navy and U.S. Maritime Commission required fireproof insulation on military and civilian vessels, and that asbestos-containing thermal insulation products (e.g., Owens-Illinois Kaylo block and pipe insulation) appeared on Navy Qualified Products Lists under military specifications Mil-I-2819 and Mil-I-2781. Advent was laid down in August 1941 inside this procurement regime.

   Verification

   inferred

   Role

   supporting

   Documentation level

   class_or_era

   Accessed

   2026-09-22

   Study period

   1941-1945 (era); 2018 (filing)

   Population

   WWII Navy construction trades and crew (class context)

   Limitations

   Plaintiff-side expert declaration in asbestos litigation, not a court finding; describes Navy-wide procurement requirements and never names this hull. Pipe-covering findings are less applicable to a diesel (non-steam) minesweeper than to steam vessels. Asbestos presence aboard AM-83 is era inference only - does not establish that asbestos was installed aboard, nor quantity, nor any individual exposure.

   Atlas source

   true

   Evidence ID

   ev-uss-advent-am83-09

10. [10]Corn, Jacqueline Karnell, and Jennifer Starr, 'Historical perspective on asbestos: Policies and protective measures in World War II shipbuilding,' American Journal of Industrial Medicine 11(3):359-373 (1987); and Fleischer, W.E., et al., 'A health survey of pipe covering operations in constructing naval vessels,' J Ind Hyg Toxicol 28(1):9-16 (Jan 1946), PMID 21016030 [other_primary]

    Locator

    AJIM 11(3):359-373; J Ind Hyg Toxicol 28(1):9-16

    Finding type

    gov_survey

    Finding

    Peer-reviewed historical study documents that asbestos was used extensively as a fireproofing and insulating material in U.S. shipbuilding during WWII - the era and wartime construction program under which this hull was built at Commercial Iron Works, Portland. The USMC-commissioned 1944-45 industrial-hygiene survey of pipe-covering operations at Navy and contract yards documented that 'an important ingredient of pipe covering material used on U.S. Navy vessels is amosite.'

    Verification

    verified

    Role

    context

    Documentation level

    class_or_era

    Accessed

    2026-09-22

    Study period

    1941-1946 (survey era)

    Population

    WWII shipbuilding workforce (era context)

    Limitations

    Program/era-level documentation of asbestos use in WWII shipbuilding and naval-vessel construction generally; neither source names this vessel, class, or builder yard. Pipe-covering findings are less applicable to a diesel (non-steam) minesweeper than to steam vessels. Does not establish asbestos presence aboard AM-83.

    Atlas source

    true

    Evidence ID

    ev-uss-advent-am83-10

11. [11]Oregon Historical Society Digital Collections - Al Monner news negatives, Commercial Iron Works (Portland, Or.) term browse (OrgLot1284 series) [museum_official]

    Locator

    OHS Digital Collections, 'Commercial Iron Works (Portland, Or.)' term browse - OrgLot1284_0694_24, OrgLot1284_0676_1 and related Al Monner negatives (1942-11)

    Finding type

    historical_record

    Finding

    Oregon Historical Society holds a period photographic record of the builder yard at work: Al Monner news negatives dated November 1942 include 'Ships being built in warehouses at Commercial Iron Works, Portland' (OrgLot1284_0694_24: 'Workers building ships in two large warehouse buildings at Commercial Iron Works, Portland. The ships are on wooden scaffolding, with workers on top') and 'War industry workers at Commercial Iron Works, Portland' (OrgLot1284_0676_1) - contemporaneous documentation of construction conditions inside the yard during the very months the Adroit block was completing.

    Verification

    verified

    Role

    archival_lead

    Documentation level

    context_only

    Accessed

    2026-09-22

    Study period

    1942

    Population

    Commercial Iron Works workforce, Nov 1942 (photographic record)

    Limitations

    Period photography of the yard, not of this hull - the November 1942 frames postdate Advent's August 1942 commissioning and likely show later sisters (the Adroit block ran through AM-99). No image of AM-83 or PC-1587 itself was located (NavSource holds none either). Documents workforce and construction conditions at the builder, not materials or asbestos content.

    Atlas source

    true

    Evidence ID

    ev-uss-advent-am83-11

12. [12]NARA via DPLA index: 'USS ADVENT - War Diary, 6/1-30/43' - NARA ID 135908264 (catalog.archives.gov/id/135908264), National Archives at College Park [other_primary]

    Locator

    DPLA item e69e9b2c1e058c9bed256c11d2c0cf95 (Micro Serial 53523; NARA ID 135908264)

    Finding type

    historical_record

    Finding

    A digitized NARA record naming this hull is indexed by DPLA: 'USS ADVENT - War Diary, 6/1-30/43,' Micro Serial Number 53523, from the World War II War Diaries, Other Operational Records and Histories series, created by the Department of the Navy, Office of the Chief of Naval Operations, Intelligence Division, Office of Naval Records and Library - the June 1943 operations diary covering her Noumea convoy-screening period. Cataloged NARA identifier 135908264.

    Verification

    verified

    Role

    archival_lead

    Documentation level

    ship_specific

    Accessed

    2026-09-22

    Study period

    1943-06 (record); 2026-09-22 (index verification)

    Population

    Wartime crew, June 1943 (operations record)

    Limitations

    Catalog-level verification only - the DPLA index confirms the record exists and names this hull; its contents were not examined (catalog.archives.gov returns a JS application shell to automated fetch). An operations diary documents movements and activity, not materials - no asbestos content expected. Whether sibling monthly diaries for other commission months exist in the series is unconfirmed.

    Atlas source

    true

    Evidence ID

    ev-uss-advent-am83-12

13. [13]Batch-1434 search ledger (this record): official DANFS via Wayback NHHC capture + losthistory/hazegray mirror; NavSource 11/02083; Colton Commercial Iron Works #35; uboat.net 9246; HyperWar PC-1587 stub + ships-sc table; Wikipedia cross-check; DPLA/NARA war-diary index; DJC Oregon and Herald & News site coverage; NVR SHIPSDETAIL (302); NARA catalog (JS shell); NavalCoverMuseum (404); degraded site:courtlistener.com indexed queries [other_primary]

    Locator

    search_ledger rows sl-uss-advent-am83-01 through sl-uss-advent-am83-16

    Finding type

    historical_record

    Finding

    No qualifying ship-specific asbestos record located for USS Advent / AM-83 / PC-1587: no asbestos survey, abatement contract, hazmat disclosure, preservation record, court finding, or docketed asbestos case naming this hull was found in the public sources searched (see search_ledger). The CourtListener API v4 sweep could not run this session - the authenticated request returned HTTP 429 ('Request was throttled. Rate limit exceeded: 2800/day. Expected available in 15965 seconds') on the first attempt; the shared daily quota was exhausted by prior batch work on this machine (same wall hit by sibling batches today incl. batch-1236), so the opinion/docket sweep is logged as blocked, not retried, per batch rules. Indexed-web substitute queries surfaced only name collisions and generic asbestos filings - no hit naming this hull - and marketing-roster name mentions (mesothelioma.com's minesweeper jobsites page lists 'USS Advent | AM-83 | Adroit | 8/19/1942 | Disposed, 1948' in a generic table; mesotheliomahelp.org and freeasbestostesting.com list USS Advent similarly; excluded per source rules, no hull-specific evidence).

    Verification

    verified

    Role

    negative_finding

    Documentation level

    ship_specific

    Accessed

    2026-09-22

    Study period

    2026-09-22

    Limitations

    Absence of a located public record does not prove absence of asbestos aboard - a 1941-42-built vessel is era-consistent with asbestos-containing materials even accounting for its lighter diesel insulation load. IMPORTANT: the CourtListener sweep did not run (throttled, shared quota) - 'no qualifying case located' reflects the non-litigation repositories and degraded indexed queries only; a differently-phrased hull reference may exist in the opinion/docket indexes. The post-1948 disposal is undocumented ('Fate unknown'), so no survey pathway exists in located sources. Does not establish presence or absence; does not establish or defeat any exposure claim or legal eligibility.

    Atlas source

    true

    Evidence ID

    ev-uss-advent-am83-13

14. [14]Wineland v. Air & Liquid Systems Corp., 539 F. Supp. 3d 1149 (W.D. Wash. 2021), No. C19-0793RSL - diesel minesweeper engine-room litigation posture (defense summary judgments); doctrinal context incl. Air & Liquid Systems Corp. v. DeVries, 586 U.S. 446 (2019) [court_record]

    Locator

    Wineland v. Air & Liquid Sys. Corp., 539 F. Supp. 3d 1149, No. C19-0793RSL (W.D. Wash., Lasnik, J., 2021) - Crane Co. MSJ order (Dkt. 304); companion orders Alfa Laval (Dkt. 313), Puget Sound Commerce Center (Dkt. 302), Carrier (Dkt. 427); DeVries, 586 U.S. 446 (2019)

    Finding type

    litigation_documented

    Finding

    No case located names this hull (see negative_finding row and search_ledger - CourtListener sweep blocked this session). Nearest verified type context: a Navy veteran alleged mesothelioma from engine-room machinery work (diesel engines, pumps, air compressors, valves) aboard a series of Navy ships - including the post-war diesel-driven ocean minesweepers USS Dynamic, USS Pledge, USS Loyalty, and USS Esteem - and in Navy offices, 1963-1984. The court applied maritime law and granted the equipment defendants' summary judgments: plaintiffs failed to produce admissible evidence that exposure to the defendants' asbestos, if any, was a substantial contributing factor, and the defendants had no duty for other manufacturers' parts - a merits-level loss for that plaintiff, not exposure evidence for any vessel.

    Verification

    verified

    Role

    context

    Documentation level

    class_or_era

    Accessed

    2026-09-22

    Study period

    2021 decision (DeVries 2019)

    Limitations

    Doctrinal context only - the cited case names other (later, MSO-type) minesweepers, never this hull, and ended in defense summary judgment; it illustrates the causation and bare-metal defenses (DeVries framework) a claim arising from a diesel minesweeper's engine spaces would face. Per litigation-stage discipline a defense SJ win is a merits-level negative for that plaintiff, not affirmative evidence about any ship. Published reporter citation verified 2026-09-22 (539 F. Supp. 3d 1149); no CourtListener opinion URL located - cited by reporter and docket number. Does not establish or defeat any exposure claim or legal eligibility.

    Atlas source

    true

    Evidence ID

    ev-uss-advent-am83-14

15. [15]Archival leads (not retrieved - require research-room or reproduction order; no spend authorized; NARA catalog returns only its JS application shell to automated fetch): (a) NARA WWII War Diaries series - the June 1943 Advent diary is cataloged (ID 135908264, Micro Serial 53523); sibling months Aug 1942 - Jan 1946 expected but unconfirmed; (b) NARA WWII muster rolls for AM-83/PC-1587 - commission Aug 1942 - Jan 1946 (~3.5 years); (c) NARA RG 24 deck logs, Aug 1942 - Jan 1946; (d) NARA RG 19 BuShips records / General Information Books and the Navy contract file for the Commercial Iron Works Adroit block (yard hull #35; AM-82..99 block) - the plausible home of hull-level material schedules and the resolution path for the ordered date and spec variances; (e) Maritime Commission vessel-status/disposal card for the 18 March 1948 transfer - the plausible resolution path for the 'fate unknown' disposition (MARAD ship-history cards for this hull not located in digitized public sources); (f) NHHC/NHPC still-photo files - no photograph of AM-83/PC-1587 located in any public source (NavSource holds none); (g) OHS Commercial Iron Works collection beyond the indexed Monner negatives; (h) Zidell Marine/Portland shipbreaking records - if the hull returned to Portland for dismantling the former builder's site is a plausible pathway, undocumented. [other_primary]

    Locator

    catalog.archives.gov/id/135908264 (verified via DPLA); archives.gov RG 19/24 group guides; Colton commercial.htm; NavSource 11/02083; OHS Digital Collections term browse

    Finding type

    historical_record

    Finding

    Record-group mapping only: the archival repositories most likely to hold hull-level material, personnel, operations, or disposal documentation for AM-83/PC-1587, keyed to the documented events of her career (Portland construction 1941-42; U.S. commission Aug 1942 - Jan 1946; Noumea convoy screening 1943; AM-to-PC redesignation 1 Jun 1944; South/West Pacific patrol through Oct 1945; San Francisco inactivation; striking Feb 1946; Maritime Commission transfer Mar 1948; undocumented disposal).

    Verification

    unverified

    Role

    archival_lead

    Documentation level

    context_only

    Accessed

    2026-09-22

    Study period

    1941-1948 records

    Limitations

    Record-group mapping only - no box-level retrieval performed; existence of asbestos-specific documents for this hull is unknown until surveyed in person. Muster rolls, deck logs, contract files, photo files, and disposal records are personnel/operations/disposal records, not materials documentation. Nothing in this row is an asbestos finding.

    Atlas source

    true

    Evidence ID

    ev-uss-advent-am83-15