USS Scrimmage (AM-297)

Evidence

14 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-14).

1. [1]DANFS, 'Scrimmage' entry, Naval History and Heritage Command (NHHC page published 2015-09-08; live URL returns 404 - verbatim text retrieved via Internet Archive Wayback capture 20190819223719; corroborating hazegray.org transcription via Wayback capture 20250125125515) [nhhc_danfs]

   Locator

   DANFS 'Scrimmage' entry body + specifications block (Wayback capture 20190819223719 of history.navy.mil .../danfs/s/scrimmage.html; hazegray mirror capture 20250125125515)

   Finding type

   vessel_history

   Finding

   Official DANFS record for this hull: name gloss 'A skirmish; a confused struggle.'; spec block '(AM-297: dp. 795; l. 184'6"; b. 33'; dr. 9'; s. 15 k.; cpl. 104; a. 1 3", 2 40mm., 6 20mm., 2 dct, 2 dcp., 1 dcp. (hh.); cl. Admirable)'. Laid down 22 February 1943 by Winslow Marine Railway and Shipbuilding Co., Seattle, Wash.; launched 16 May 1943; commissioned 4 April 1944, Lt. Robert Van Winkle in command. Service narrative: shakedown; sailed San Francisco 11 June 1944 for Pearl Harbor; Eniwetok convoy round-trip; swept old U.S. minefield at French Frigate Shoals 6-15 August; reported to 7th Fleet at Manus 20 September; joined Mine Division 34 off Leyte 20 October for a four-day sweep of the main transport channel plus AA support; searched for Battle off Samar survivors 27-31 October; pre-invasion sweeps at Ormoc Bay 6 Dec 1944, Mindoro 14 Dec, Lingayen Gulf 6 Jan 1945, Zambales and Subic Bay 29/31 Jan; Manila Bay sweeps 13-19 February for the Mariveles/Corregidor landings (within 5,000 yards of Corregidor on the 14th, repeatedly straddled by Japanese fire; 'her division earned a Navy Unit Commendation for the operation'); Legaspi pre-assault sweep 1 April; 8-day Sulu Sea sweep off Palawan from 22 April; Morotai 9 May; Brunei Bay support 7-18 June under shore-battery fire (sister Salute mined and sunk 8 June); Subic Bay engine repairs from 21 June; departed Philippines 6 September, arrived Nagoya 9 October through three typhoons; swept Japanese minefields in Inland Sea approaches and Tsushima Strait 16 October-3 December; sailed from Sasebo 9 December; arrived Orange, Tex. 2 April 1946; decommissioned there 22 June 1946 and placed in reserve; reclassified MSF-297 on 7 February 1955; struck from the Navy list 1 April 1960 and sold; 'subsequently became the British merchantman, Giant II.' 'Scrimmage received 6 battle stars for her World War II service.'

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1943-1960

   Population

   Winslow Marine Railway construction trades (1943-44); wartime complement ~104 (1944-46); Orange reserve-fleet caretakers (1946-1960)

   Limitations

   Official NHHC entry naming this hull - confirms identity, builder, build/commissioning dates, the full combat-service narrative, awards (6 battle stars; division-level Navy Unit Commendation), decommission/reserve/reclassification/strike dates, and the post-sale Giant II identity. Contains no materials, insulation, or asbestos information; supports no asbestos claim. Live NHHC page 404s (standing link rot); verbatim text via Wayback capture.

   Atlas source

   true

   Evidence ID

   ev-uss-scrimmage-am297-01

2. [2]NavSource Online: Mine Warfare Vessel Photo Archive - Scrimmage (MSF 297) ex-AM-297, file 11/02297 [other_primary]

   Locator

   navsource.org/archives/11/02297.htm (live .org unreachable to automated fetch this session; verified via navsource.net mirror + indexed text) - chronology block, specifications block, propulsion line, CO list

   Finding type

   vessel_history

   Finding

   NavSource per-hull record: 'Admirable Class Minesweeper'; call sign November-Quebec-Papa-Bravo; laid down 22 February 1943 by the Winslow Marine Railway and Ship Building Co., Seattle, WA; launched 16 May 1943; commissioned USS Scrimmage (AM 297) 4 April 1944; 'Naval Vessel Register of 1 January 1949 lists plan for decommissioning and placing in reserve as December 1945'; decommissioned 22 June 1946 at Orange, TX; reclassified Fleet Minesweeper (Steel Hull) MSF-297 on 7 February 1955; 'Struck from the Naval Register 1 April 1960 and sold'; 'She became a British merchantman named Giant II and used as a cable ship'; 'Sold in March 1968 to the Dillingham Corp. and leased to the University of Hawaii as a research vessel'; renamed M/S Mahi; 'Sold in 1982 to Dacor Scuba Diving to be sunk as an artificial reef'; 'Sunk approximately 1-mile off the Waianae coast in 90 feet of water.' Spec block: 945 t (fl); 184'6" x 33' x 9'9"; 14.8 kts; complement 104; armament one 3"/50 DP mount, one twin 40mm mount, six 20mm mounts, one hedgehog, four K-guns, two depth-charge tracks; propulsion 'Two 1,710shp Cooper Bessemer GSB-8 diesel engines, National Supply Co. single reduction gear, two shafts.' CO roster: LT Robert Van Winkle USNR (4 Apr 1944 - 16 Aug 1945); LT Richard Charles Condon USNR (from 16 Aug 1945); LT Paul Edwin Henderson USN (16 Jan 1946 - 22 Jun 1946).

   Verification

   partial

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1943-1982

   Population

   Winslow construction trades (1943-44); wartime complement ~104; Giant II cable-ship crews (1960-68); Dillingham/Mahi crews and UH science parties (1968-71+); Dacor reef-prep workforce (1982)

   Limitations

   Specialist volunteer-compiled archive, not an official publication - consistent with DANFS on all overlapping points and supplies the post-Navy chain (Giant II > Mahi > reef), propulsion fit, call sign, and CO roster that DANFS omits. Propulsion conflicts with Wikipedia's ALCO 539/Farrel-Birmingham infobox and HyperWar's 'diesel-electric 1,800 h.p.' stub - flagged in ev-13/gaps. Contains no asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-scrimmage-am297-02

3. [3]uboat.net Allied Warships of WWII - USS Scrimmage (AM 297), ship 5361 (Gudmundur Helgason compilation) [other_primary]

   Locator

   uboat.net ship/5361 - data table (ordered/built/laid down/launched/commissioned/history rows)

   Finding type

   vessel_history

   Finding

   Compiled warship record naming this hull: Admirable-class minesweeper AM 297; 'Built by Winslow Marine Railways & Ship Building Corp. (Winslow, Washington, U.S.A.)'; ordered 2 May 1942 (a datum DANFS and NavSource do not carry); laid down 22 Feb 1943; launched 16 May 1943; commissioned 4 Apr 1944; end service 22 Jun 1946; decommissioned at Orange, Texas; struck 1 April 1960 and sold; British merchantman Giant II, cable ship; March 1968 Dillingham Corp. purchase, leased to University of Hawaii as research vessel M/S Mahi; 1982 sale to Dacor Scuba Diving; sunk ~1 mile off the Waianae coast in 90 feet of water.

   Verification

   partial

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1942-1982

   Limitations

   Secondary compiled database (respected reference for Allied warship data) - corroborates DANFS/NavSource on all overlapping points; 'ordered 2 May 1942' is unique to this source and not independently verified against the contract record; its 'Winslow, Washington' builder location conflicts with DANFS/NavSource 'Seattle, Wash.' (the yard was physically at Eagle Harbor, Winslow, Bainbridge Island - carried as the site location, DANFS verbatim retained). Contains no asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-scrimmage-am297-03

4. [4]Consolidated era/design inference - NavSource spec block for this hull (documented geared-diesel plant) + Admirable-class design data (NPS NHL nomination 79003712 for sister ship USS Hazard) + documented post-Navy disturbance events (Dillingham shipyard reconfiguration 1968; reef-prep scuttling 1982) [other_primary]

   Locator

   NavSource 02297.htm specifications/propulsion block; NPS NHL nomination NRIS 79003712 (class design description); UH HIG history ch. 13.3 (1968 conversion scope); NavSource reef-sale line

   Finding type

   asbestos_application

   Finding

   Era/design inference: this hull was a diesel-powered Admirable-class minesweeper (twin Cooper Bessemer GSB-8 diesels, National Supply Co. single reduction gear, twin shafts - no boilers or steam turbines) built at a WWII Navy contract yard at the peak of wartime asbestos usage - the construction context for which engine exhaust and muffler lagging, valve and flange gaskets, machinery packing, electrical-cable insulation, bulkhead and overhead panels, deck coverings, and winch/windlass brake linings of the period were commonly asbestos-containing. Every original insulation installation predates the Navy's early-1970s substitution of alternative insulation materials. The documented disturbance windows for this hull are unusually numerous: construction (1943-44); combat service incl. machinery wear and engine repairs (1944-46); reserve lay-up (1946-1960); undocumented cable-ship conversion (1960-68); documented research reconfiguration at the Dillingham shipyard, Honolulu (1968 - heavy equipment installation incl. Pengo wire hauler, sparker/air guns, transducers); an undocumented c.1971-82 interval; reef-prep stripping/scuttling (1982); and in-situ deterioration as a dive wreck (1982-present).

   Verification

   inferred

   Role

   supporting

   Documentation level

   class_or_era

   Accessed

   2026-09-22

   Study period

   1943-present

   Population

   Winslow construction trades (1943-44); wartime complement ~104; reserve-fleet caretakers; Giant II crews; Dillingham shipyard conversion workers (1968); UH crew/science parties; Dacor reef-prep workforce; wreck-site divers

   Limitations

   Inference from the documented machinery plant, class design, and construction era - NOT a hull materials record. No survey, specification, or material schedule naming AM-297 was located; establishes no asbestos content, quantity, location, individual exposure, or causation. The diesel (non-steam) plant narrows the era-typical application set relative to steam hulls. Whether any original material remained aboard through the merchant conversions and reef sinking is undocumented - reef-era environmental practice of the period is likewise undocumented for this hull.

   Atlas source

   true

   Evidence ID

   ev-uss-scrimmage-am297-04

5. [5]Fleischer, W.E., Viles, F.J. Jr., Gade, R.L., and Drinker, P., '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

   PubMed record PMID 21016030; article pp. 9-16 (pipe covering material section)

   Finding type

   gov_survey

   Finding

   The 1944-45 U.S. government industrial-hygiene survey of WWII pipe-covering operations at two Navy yards and two Navy contract yards documented that 'an important ingredient of pipe covering material used on U.S. Navy vessels is amosite' - i.e., asbestos insulation was standard material in wartime naval-vessel construction of exactly this hull's era and procurement channel (a Navy contract yard).

   Verification

   verified

   Role

   context

   Documentation level

   class_or_era

   Accessed

   2026-09-22

   Study period

   survey ~1944-45; published 1946

   Population

   WWII pipe coverers and insulators at Navy and contract yards (era context)

   Limitations

   Era-level documentation of asbestos use in naval construction generally; the surveyed yards are anonymized (A-D) and it does not name this vessel, class, or builder - whether Winslow Marine Railway was among the surveyed contract yards is unverified. Establishes nothing about this hull's materials, condition, or any individual exposure. (The study's exculpatory 'not a dangerous occupation' conclusion has since been heavily criticized - see the 2026 critique at DOI 10.1177/10482911261446696.)

   Atlas source

   true

   Evidence ID

   ev-uss-scrimmage-am297-05

6. [6]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), PMID 3555021 [other_primary]

   Locator

   Abstract and article, AJIM 11(3):359-373

   Finding type

   asbestos_application

   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 emergency construction program under which this Admirable-class minesweeper was built - and that wartime demand drove unprecedented asbestos utilization in shipbuilding.

   Verification

   verified

   Role

   context

   Documentation level

   class_or_era

   Accessed

   2026-09-22

   Study period

   1940s era documented; article 1987

   Population

   WWII shipyard workers and ship crews (class context)

   Limitations

   Program/era-level scholarly documentation of asbestos use in WWII shipbuilding generally; does not name this vessel or class and does not establish that asbestos was or remains aboard this hull, nor quantity, location, condition, exposure, or causation.

   Atlas source

   true

   Evidence ID

   ev-uss-scrimmage-am297-06

7. [7]National Park Service, National Historic Landmark nomination, USS Hazard (AM-240), NRIS 79003712 (Admirable-class sister ship - built at the SAME Winslow Marine Railway yard as this hull) [nps]

   Locator

   NPS NRIS 79003712 + NHL nomination text, description/classification sections

   Finding type

   historical_record

   Finding

   Official NPS documentation of the Admirable class via the sole surviving example - a Winslow-built sister of this hull: 'Admirable class minesweepers were basic minesweepers similar to the British Bangor class designed to meet minimum requirements for size, speed, and endurance. They were fitted for both wire and acoustic sweeping and could also double as anti submarine warfare and antiaircraft ships. Admirable class minesweepers formed the majority of American minesweepers built during World War II.' The nomination records Hazard as retaining essentially all original 1945 equipment - 'a virtual time capsule dating from 1945' - evidencing that the class's as-built WWII fabric survives on a sister hull built at the same yard one year later.

   Verification

   verified

   Role

   context

   Documentation level

   class_or_era

   Accessed

   2026-09-22

   Study period

   nomination 1979; class era 1943-1945

   Population

   Admirable-class crews and builders (class context)

   Limitations

   Documents a different hull (AM-240) and the class design generally; contains no asbestos or materials content and establishes nothing about AM-297 itself - and unlike Scrimmage, Hazard never left U.S. custody (no merchant conversions or reef sinking). The class-context value is the as-built configuration, same-yard construction, and era - not any asbestos finding. No public ACM survey of Hazard was located.

   Atlas source

   true

   Evidence ID

   ev-uss-scrimmage-am297-07

8. [8]Bainbridge Island Review, 'Minesweepers of steel: Kitsap's other shipyard' (2017-06-15) - site/workforce history of the Winslow Marine Railway & Ship Building Co. yard at Eagle Harbor, Winslow, Bainbridge Island [reputable_press]

   Locator

   Bainbridge Island Review article (citing the company newsletter 'The Minesweeper' and shipbuildinghistory.com); corroborated by navalmarinearchive.com Winslow yard table and the Wikipedia yard article

   Finding type

   historical_record

   Finding

   Local-press yard history documenting the builder: founded 1903 as Hall Bros. Marine Railway & Shipbuilding on a 77-acre Eagle Harbor site near Winslow; renamed Winslow Marine Railway & Ship Building Co. in 1916 under Capt. James Griffiths; pre-war workforce ~300 growing to 2,300 by January 1943, with 160 wartime houses and a nursery built for workers; 'Between June 1942 and Oct. 1944, the shipyard launched 17 steel ocean-going (AM) minesweepers - one every 2 months' spanning the Auk and Admirable classes; among the Winslow-built hulls was sister sweeper USS Salute (AM-294), mined off Borneo 8 June 1945 during the same operation DANFS records for Scrimmage. Yard sold 1948 (renamed Commercial Ship Repair of Winslow), closed 1959.

   Verification

   verified

   Role

   context

   Documentation level

   context_only

   Accessed

   2026-09-22

   Study period

   1903-1959

   Population

   Winslow Marine Railway workforce (peak 2,300, Jan 1943 - yard-level context)

   Limitations

   Yard-level site and workforce history, not a vessel record - documents that the yard that built AM-297 was a real WWII Navy contract facility at Eagle Harbor, Winslow (Bainbridge Island), and dates its wartime expansion and closure. Contains no asbestos survey or abatement finding for the yard and nothing about this hull's materials.

   Atlas source

   true

   Evidence ID

   ev-uss-scrimmage-am297-08

9. [9]University of Hawaii, Hawaii Institute of Geophysics institutional history, ch. 13.3 'R/V Mahi (1968-1971)' (AWI EPIC repository eprint 41788) [other_primary]

   Locator

   epic.awi.de/id/eprint/41788/16/Q-Chapter13.pdf - section 13.3 'R/V Mahi (1968-1971)'; corroborated by PANGAEA data publication DOI 10.1594/pangaea.874787 ('1968, R/V Mahi expeditions in the Pacific Ocean', Hawaii Institute of Geophysics)

   Finding type

   vessel_history

   Finding

   Institutional history documenting this hull's post-Navy research phase: 'The R/V Mahi joined the UH-HIG fleet in June 1968 on a charter agreement with the ship's owner, Dillingham Maritime Services in Honolulu. Dillingham Corporation had purchased Mahi in March 1968 and reconfigured it for research at the Dillingham shipyard in Honolulu.' The vessel was Nassau-registered despite its Honolulu homeport; described as 'a converted US Navy mine-sweeper, 186 feet in length and 800 ton displacement' and 'the only vessel in the Pacific with four stacks' (per marine technician Pierluigi Pozzi) - a military holdover. Research fit included a heavy-duty Pengo wire hauler for deep-sea coring/dredging, sparker, air guns, magnetometer, gravimeter, 3.5-kHz and 12-kHz transducers, precision depth recorders, piston corer, and water sampling devices; science complement ~17 in addition to crew. In January 1969 HIG scientists completed a 17,000-nautical-mile, 100-day South Pacific expedition (Solomon Islands, Line Islands, Marshall-Gilbert group) conducting geophysical measurements supporting seafloor-spreading research; chapter covers the 1968-1971 charter period.

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1968-1971

   Population

   Dillingham shipyard conversion workers (1968); Mahi crew and UH science complement ~17 (1968-1971+)

   Limitations

   Institutional/scholarly history (UH HIG), not a Navy record - documents the vessel under its post-Navy identity (ex-AM-297 chain established by NavSource/uboat.net). Confirms a real yard reconfiguration event aboard this hull at the Dillingham shipyard in 1968 (a materials-disturbance phase) but contains no asbestos or hazmat information; supports no asbestos claim. Coverage ends ~1971; the vessel's 1971-1982 history is undocumented in located sources.

   Atlas source

   true

   Evidence ID

   ev-uss-scrimmage-am297-09

10. [10]State of Hawaii DLNR Division of Aquatic Resources - artificial reef program records: 'Boundary Coordinates & Points of Interest: Wai'anae Artificial Reef' (ARCoords.pdf) + 'Artificial Reefs and FADs' program page (dlnr.hawaii.gov/dar) [other_primary]

    Locator

    dlnr.hawaii.gov/dar/files/2014/04/ARCoords.pdf - Wai'anae table, 'Mahi & Navy Barge' row; dlnr.hawaii.gov/dar/fishing/artificial-reefs-and-fads/ - History/Materials/Permits sections

    Finding type

    environmental_record

    Finding

    Official state record of the hull's final disposition: DLNR's Wai'anae Artificial Reef boundary/POI table lists 'Mahi & Navy Barge' at 90 ft / 27 m, coordinates 21 deg 24.793'N, 158 deg 11.736'W - the documented position of this hull's wreck. Program-level context from the same official pages: the Wai'anae reef site was created in 1963 (141 acres); 'from 1964-1985 ... several barges and a minesweeper were sunk' as reef material (this hull, sunk as the Mahi, is the minesweeper); artificial-reef development in U.S. waters requires a U.S. Army Corps of Engineers permit under the National Fishing Enhancement Act of 1984.

    Verification

    verified

    Role

    supporting

    Documentation level

    ship_specific

    Accessed

    2026-09-22

    Study period

    1963-present (site); 1982 (sinking)

    Population

    Reef-prep/scuttling workforce (1982); recreational divers at the wreck (1982-present)

    Limitations

    Documents the wreck under its post-Navy name 'Mahi' (identity chain via NavSource/DANFS) - DLNR does not print 'Scrimmage' or 'AM-297'. Confirms reef location, depth, and the program's permitting regime but contains no hazmat, survey, or pre-sinking environmental-prep information - what was removed or remediated before the 1982 sinking is undocumented. Does not give the sinking year; dive-operator sources variously print 1982 and 1986 (flagged in gaps).

    Atlas source

    true

    Evidence ID

    ev-uss-scrimmage-am297-10

11. [11]NARA Guide to Federal Records: RG 19 (Bureau of Ships construction/specification records - Winslow minesweeper contract file, Booklet of General Plans, hull material schedules), RG 24 (deck logs and WWII muster rolls for the Apr 1944-Jun 1946 commission - muster rolls digitized via the Ancestry partnership), RG 38 (WWII war diaries - a combat vessel's monthly submissions), plus post-strike disposal records for the 1 Apr 1960 sale, merchant documentation for Giant II/Mahi (Nassau registry), USACE/DLNR artificial-reef permit files (1982), and UH HIG records for the 1968 conversion scope [other_primary]

    Locator

    archives.gov/research/guide-fed-records/groups/019.html ; /groups/024.html ; /groups/038.html ; archives.gov/research/military/navy/muster-rolls

    Finding type

    historical_record

    Finding

    Archival leads (not retrieved - requires research-room or reproduction order; no spend authorized): BuShips construction-contract and specifications records covering the Winslow minesweeper program (RG 19) - the plausible home of hull-level material schedules for AM-297; RG 24 deck logs and muster rolls for the full commissioned period (Apr 1944-Jun 1946); RG 38 war diaries for the Leyte/Philippines/Borneo/Japan-sweep periods; the Navy disposal file for the 1960 sale; documentation of the Giant II cable-ship phase (1960-68, undocumented in located sources); and the USACE permit/DLNR file for the 1982 reef sinking - the likeliest source for any pre-sinking environmental-prep condition.

    Verification

    unverified

    Role

    archival_lead

    Documentation level

    context_only

    Accessed

    2026-09-22

    Study period

    1942-1982 records

    Limitations

    Record-group mapping only - no document-level retrieval performed; existence of asbestos-specific documents for this hull is unknown until surveyed. The NARA Catalog records API requires an x-api-key not provisioned on this machine (v1/v2 endpoints return only the SPA shell to unauthenticated fetch) - catalog-level verification of hull-specific file units was not performed this session; indexed-web check surfaced no Scrimmage-specific catalog entries. Nothing in this row is an asbestos finding.

    Atlas source

    true

    Evidence ID

    ev-uss-scrimmage-am297-11

12. [12]Batch-1269 search ledger (this record): NHHC/DANFS via Wayback + hazegray mirror capture; NavSource 02297 (navsource.net mirror); uboat.net ship/5361; HyperWar AM-297 stub; UH HIG ch. 13.3 (epic.awi.de 41788); Hawaii DLNR ARCoords.pdf + program page; PANGAEA DOI 10.1594/pangaea.874787; Bainbridge Island Review + navalmarinearchive yard records; shipyards.json slug check; CourtListener API v4 (type=o and type=r - both HTTP 429); indexed-web litigation checks; NARA catalog API (key-gated) [other_primary]

    Locator

    search_ledger rows sl-uss-scrimmage-am297-01 through sl-uss-scrimmage-am297-14

    Finding type

    historical_record

    Finding

    No qualifying ship-specific asbestos record located for USS Scrimmage / AM-297 / MSF-297 / Giant II / Mahi: no asbestos survey, specification, abatement contract, hazmat disclosure, court finding, or docketed asbestos case naming this hull was found in the public sources searched (see search_ledger). CourtListener coverage this session: the authenticated API v4 returned HTTP 429 on both the opinion query (type=o 'USS Scrimmage') and the RECAP/docket query (type=r 'USS Scrimmage') - the shared 2,800/day quota was already exhausted by prior batch work on this machine ('Expected available in 36551 seconds'); per batch rules it was not retried into a ban - same wall hit by sibling batches today (incl. 1254, 1262). Indexed-web substitute queries surfaced no qualifying docketed case - only law-firm marketing listicles naming the hull in generic minesweeper tables (mesothelioma.com tabulates 'USS Scrimmage | AM-297 | Admirable | 4/4/1944 | Sunk, 1982'; mesotheliomahelp.org and mesotheliomaveterans.org list 'USS Scrimmage' generically) - 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 1943-44 contract-yard minesweeper is era-consistent with asbestos-containing materials even accounting for its lighter diesel insulation load, and this hull's multiple documented conversion/disposal phases are each unexamined disturbance events. IMPORTANT: the CourtListener sweep did not run (quota exhausted, shared limit) - '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. Does not establish presence or absence; does not establish or defeat any exposure claim or legal eligibility.

    Atlas source

    true

    Evidence ID

    ev-uss-scrimmage-am297-12

13. [13]Source-discrepancy resolution - official DANFS (Wayback capture of live-404 NHHC page; hazegray mirror) vs NavSource 11/02297 vs uboat.net 5361 vs HyperWar AM-297 stub vs navalmarinearchive Winslow yard table vs dive-operator pages vs Wikipedia (itself incorporating DANFS text) [other_primary]

    Locator

    web.archive.org capture of history.navy.mil .../danfs/s/scrimmage.html; navsource.org/archives/11/02297.htm; uboat.net/allies/warships/ship/5361.html; ibiblio.org/hyperwar/USN/ships/AM/AM-297_Scrimmage.html; navalmarinearchive.com/sbh/shipyards/small/winslow.html; diveoahu.com/mahi; en.wikipedia.org/wiki/USS_Scrimmage_(AM-297)

    Finding type

    historical_record

    Finding

    Source discrepancies logged, not silently merged: (a) Sinking year - NavSource and the Wikipedia narrative record the 1982 sale to Dacor Scuba Diving 'to be sunk as an artificial reef' without a separate sinking date; Wikipedia's fate field reads 'Sunk as artificial reef 1982' while Dive Oahu prints 'sunk intentionally in 1986' - 1982 carried per NavSource/Wikipedia and the DLNR 1964-1985 sinkings bracket, the 1986 variant flagged. (b) Sale year - DANFS/NavSource/uboat print struck 1 April 1960 'and sold'; navalmarinearchive's Winslow yard table reads 'Sold 1962' - the register-level 1960 strike carried, 1962 variant flagged. (c) Propulsion - NavSource 'Two 1,710shp Cooper Bessemer GSB-8 diesel engines, National Supply Co. single reduction gear' vs Wikipedia '2 x ALCO 539 ... 1,710 shp ... Farrel-Birmingham single reduction gear' vs HyperWar 'Diesel-electric engines, twin screws, 1,800 h.p.' - the geared (non-electric) plant is confirmed by the documented reduction gear; engine make/rating unresolved at primary-source level. (d) Displacement/draft - 795 (DANFS spec block) vs 945 t full (NavSource) vs 625 t (HyperWar stub) vs 650 t (Wikipedia infobox); draft 9' (DANFS) vs 9'9" (NavSource) vs 10' (HyperWar). (e) Builder location - 'Seattle, Wash.' (DANFS, NavSource) vs 'Winslow, Washington' (uboat.net) and HyperWar's 'Built at Winslow' - the yard was physically at Eagle Harbor, Winslow, Bainbridge Island (Bainbridge Island Review); both carried. (f) R/V Mahi length/tonnage - UH HIG '186 feet ... 800 ton' vs register-era 184'6"/945 fl - conversion-era figures, flagged.

    Verification

    partial

    Role

    correction

    Documentation level

    ship_specific

    Accessed

    2026-09-22

    Study period

    1942-2026

    Limitations

    Resolves publication-level discrepancies among the official DANFS text, register-level compilations, an institutional history, and secondary/dive sources, adopting the better-supported values and flagging the rest. The Giant II cable-ship phase (1960-68) is documented in outline only - operator, flag, and cable work unverified. No asbestos content in any of these sources.

    Atlas source

    true

    Evidence ID

    ev-uss-scrimmage-am297-13

14. [14]Air & Liquid Systems Corp. v. DeVries, 586 U.S. 446 (2019), CourtListener opinion 4601080 - bare-metal-defense doctrinal context [court_record]

    Locator

    CourtListener opinion 4601080

    Finding type

    litigation_documented

    Finding

    No case located names this hull (see negative_finding row and search_ledger - CourtListener queries were quota-blocked this session). Doctrinal context only for the vessel's type: claims arising from WWII-era Navy-vessel asbestos exposure ran under maritime law against equipment manufacturers, and the Supreme Court's DeVries decision settled the 'bare-metal defense' framework - manufacturers that supplied bare equipment had a duty to warn where their products required asbestos-containing parts. It illustrates the litigation posture claims arising from service aboard a WWII diesel minesweeper would have faced; no such claim naming Scrimmage was located.

    Verification

    verified

    Role

    context

    Documentation level

    class_or_era

    Accessed

    2026-09-22

    Study period

    2019 decision

    Limitations

    Doctrinal context only - the cited case does not name or involve this hull, and DeVries addressed manufacturers' duty to warn for asbestos-containing components on Navy vessels generally. Classification note: a complaint's vessel list would be a pleading allegation, not a finding; no pleading naming this hull was located in the searches performed.

    Atlas source

    true

    Evidence ID

    ev-uss-scrimmage-am297-14