USS Engage (AM-93)

Evidence

11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).

1. [1]DANFS, 'Engage I (AM-93)' - official NHHC text verified via Wayback capture 2025-12-09 (live history.navy.mil URL patterns engage.html / engage-i.html / engage-am-93.html return 404 - standing link rot, same as BATCH-01 and same-day batches); verbatim transcription corroborated by the losthistory.net/hazegray mirror [nhhc_danfs]

   Locator

   Wayback NHHC capture 2025-12-09 (engage-i.html) spec block + service narrative; corroborating mirror losthistory.net/hazegray/danfs/mine/am93.htm

   Finding type

   vessel_history

   Finding

   Official DANFS record for this hull: spec block '(AM-93: dp. 295; l. 173'8"; b. 23'; dr. 7'7"; s. 16 k.; cpl. 65; a. 1 3"; cl. Adroit).' 'Engage (AM-93) was launched 11 July 1942 by Dravo Corp., Pittsburgh, Pa.; sponsored by Mrs. E. O'Brien; and commissioned 22 October 1942, Lieutenant R. E. Fitzpatrick, USNR, in command. She was reclassified PC-1597 on 1 June 1944, and her name canceled.' Service per DANFS: arrived Charleston, S.C., 12 December 1942 from shakedown off Florida; coastal escort to Florida ports January 1943; Norfolk 4 February 1943 for Chesapeake Bay operations until 10 March; escort duty to Bermuda - patrol duty and training with submarines, occasionally escorting ships to Norfolk. As PC-1597: sailed in convoy from Norfolk 4 July 1944 for Bizerte, Tunisia, arriving 23 July; Naples and Ajaccio, Corsica; cleared 13 August for the invasion of southern France - acted as reference vessel for the waves of landing craft during the initial assault, then patrolled off the transport area; convoy escort to the beachheads and Riviera patrol through September; general escort duty in the western Mediterranean until sailing for Jacksonville 27 May 1945; decommissioned 19 November 1945; transferred to the Maritime Commission for disposal 8 November 1946. 'PC-1597 received one battle star for World War II service.'

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1942-1946

   Population

   Dravo trades (1942); commissioned crew (65) 1942-45

   Limitations

   Official U.S. Navy history - documents construction, reclassification, service, and disposal milestones but carries no materials or asbestos information; supports no asbestos claim. DANFS does not state the keel-laying date, the striking date, or the post-1946 Dominican chain - those rest on secondary sources (flagged in ev-08). Mirror corroboration required because the live NHHC URL 404s.

   Atlas source

   true

   Evidence ID

   ev-uss-engage-am93-01

2. [2]NavSource Online: Mine Warfare Vessel Photo Archive - PC-1597 ex-Engage (AM 93) page (chronology, spec block, propulsion line, commanding-officer roster, photo) [other_primary]

   Locator

   NavSource 11/02093 - chronology block, specifications block, propulsion line, CO roster (8 COs), photo caption ('23 October 1942')

   Finding type

   vessel_history

   Finding

   NavSource per-hull record: 'laid down 26 February 1942 by the Dravo Corp., Neville Island, Pittsburgh, PA; Launched 11 July 1942; Commissioned USS Engage (AM 93), 22 October 1942; Reclassified as a Submarine Chaser, PC-1597, 1 June 1944; Decommissioned 19 November 1945 at Jacksonville, FL; Transferred to the Maritime Commission 8 November 1946; Transferred to the Dominican Republic in 1946 and named Cibao (P 103); Renamed and reclassified Constitucion (P 203); Placed out of service in 1961; Fate unknown.' Call sign Nan-Able-Dog-Roger. AM-fit spec block: 295 t; 173'8"; 23' beam; 6'6" draft; 16 kts; complement 65; one 3"/50 dual-purpose gun mount, one 40mm mount, five 20mm mounts, two depth-charge tracks and two depth-charge projectors; 'Two 900hp Cooper Bessemer GNB8 diesel engines (Serial No. 1977 and 1980), Farrel-Birmingham single reduction gear, two shafts.' Commanding-officer roster of eight: LT Russel Edward Fitzpatrick, USNR (22 Oct 1942); LT Stanley Sherman Trotman, USNR (21 May 1943); LT Henry Harrison Sillman, USNR (20 Jun 1943); LT Frank Albert Fitton, USNR (8 May - 21 Jun 1944); LT Robert P. Harris, USNR (21 Jun 1944 - Jul 1945); LT Frederick B. Alofsin, USNR acting (Jul 1945); LT Robert P. Harris, USNR (Jul - Nov 1945); LTJG E. C. Smith, USNR (Nov - 19 Nov 1945).

   Verification

   partial

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1942-1968

   Population

   Dravo trades (1942); commissioned crew (65) 1942-45; Dominican Navy crews 1946/47-1961+ (secondary)

   Limitations

   Specialist secondary compilation - detailed but non-official; consistent with DANFS on construction, reclassification, decommissioning, and Maritime Commission transfer dates. It alone supplies the keel-laying date (26 Feb 1942) and the Dominican chain (Cibao P-103 / Constitucion P-203 / out of service 1961 / fate unknown) - none appears in DANFS, and the Dominican details conflict with other secondary readings (Colton: transfer 1947, discarded 1968; uboat.net: laid down 15 Feb 1942) - flagged in ev-08. Its 'Two 900hp' propulsion line conflicts with the NavSource class index's '1,770 bhp' - flagged in ev-08. Contains no asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-engage-am93-02

3. [3]Shipbuilding History (Tim Colton compilation), 'Dravo, Pittsburgh PA' yard table - Engage (AM 93) row + yard history header; cross-checked against the 'Ocean Minesweepers (AM)' table (smallships/minesweepers1.htm) [other_primary]

   Locator

   shipbuildinghistory.com/shipyards/large/dravoboats.htm - Engage (AM 93) row + yard-history header; shipbuildinghistory.com/smallships/minesweepers1.htm - AM 89-93 Dravo block rows

   Finding type

   vessel_history

   Finding

   Yard-table row for this hull: 'Engage (AM 93) | U.S. Navy | Minesweeper | 295 | | 22-Oct-42 | PC 1597, to the Dom. Rep. 1946 as Cibao (P 103)' - the delivery date matching the 22 October 1942 commissioning exactly. The minesweeper table adds the class context row: 'AM 93 | Engage | Dravo | Pittsburgh PA | 174 | 295 | 1941 | 22-Oct-42 | PC 1597 1944, to the Dom. Rep. 1947 as Cibao (P 103), later Constitucion (P-203), discarded 1968' and lists the full Dravo block - AM 89 Despite (31-Aug-42), AM 90 Direct (31-Aug-42), AM 91 Dynamic (15-Sep-42), AM 92 Effective (1-Oct-42), AM 93 Engage (22-Oct-42). Yard history header: 'Dravo's Neville Island shipyard, in Pittsburgh, was started in 1919. It was activated by the Navy for WWII, to build LSTs, with an investment of $12mm. After the war it was a ship scrapping facility for a few years and then returned to building inland river barges and towboats. It closed in 1983.'

   Verification

   verified

   Role

   supporting

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1919-1983 (yard history); 1942-1968 (this hull's rows)

   Population

   Dravo workforce (Neville Island, Pittsburgh, 1942; yard closed 1983)

   Limitations

   Compiler's yard tables, secondary - corroborate builder, type, delivery (22-Oct-42 = commissioning), and the Dominican disposal path. Internal Colton conflict: the yard table reads 'to the Dom. Rep. 1946' while the minesweeper table reads '1947'; and 'discarded 1968' conflicts with NavSource/Wikipedia 'out of service 1961, fate unknown' - all flagged in ev-08. A yard table does not carry keel/launch dates. Contains no asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-engage-am93-03

4. [4]NavSource Online: Submarine Chaser (SC/PC) photo index - 'Submarine Chaser 173-foot Steel Hull' class narrative covering the PC-461 type and the Adroit-class minecraft variant [other_primary]

   Locator

   navsource.net/archives/12/01idx.htm - 'Submarine Chaser 173' Steel Hull' header narrative + Adroit-class paragraphs

   Finding type

   vessel_history

   Finding

   Class-level construction narrative: 'in addition to 403 173-foot PC-class patrol craft ordered for the U.S. Navy in 1941, eighteen 173-foot hulls were ordered for use as minesweepers, as the Adroit class' - given names AM-82 through AM-99, 'steel hulled, twin diesel propelled,' built by five yards. 'AM 82 through 88, built at Portland, Oregon ... The other 11 operated initially either from Bermuda (AM-89 to 93) or from mainland U.S. bases' - this hull's documented first-station group, matching DANFS's Bermuda service. 'Only the Annoy (AM-84) is recorded as having been used to sweep for mines ... the others principally were employed as convoy escorts. ... the 11 Atlantic units were cycled through the Norfolk Navy Yard during May and June 1944 to have their mine countermeasures gear removed and additional antisubmarine and antiaircraft ordnance added' - this hull's documented conversion yard (DANFS: reclassified 1 June 1944; PC-1597 departed Norfolk 4 July 1944). 'On 1 June 1944, all 18 lost their names and were reclassified PC-1586 through 1603. Of the 11 Atlantic units, PC-1593-1597 were sent to the Mediterranean, where they saw service during the landings in France in August 1944 and elsewhere as local escorts. They returned to Jacksonville, Florida, in June 1945, seeing no further action.' 'At 450 tons full load, the Adroit class displaced 18 tons more than did the PCs. All but the last four built were propelled by two 1,770 brake horsepower Cooper-Bessemer GNB-8 diesels; AM-96-99 were given 1,440 brake horsepower Busch-Sulzer BS 539 diesels ... able to achieve 16.8 knots at 330 tons displacement ... about 4,000 nautical miles at 12 knots, and the normal crew comprised four officers and 61 enlisted personnel.'

   Verification

   verified

   Role

   supporting

   Documentation level

   class_or_era

   Accessed

   2026-09-22

   Study period

   1941-1945

   Population

   Construction trades at the five class yards (1941-43); Norfolk Navy Yard conversion workers (May-June 1944, Atlantic units incl. this hull)

   Limitations

   Class-level description that names this hull's design family, first-station group (AM-89..93 Bermuda), conversion yard (Norfolk Navy Yard, May-June 1944, Atlantic units), and Mediterranean assignment (PC-1593..1597 - this hull is PC-1597) - but carries no hull-specific materials information. Its 'two 1,770 bhp Cooper-Bessemer GNB-8 diesels' conflicts with the per-hull NavSource spec block's 'Two 900hp' - flagged in ev-08; carried unreconciled. Its 450-ton full-load figure reconciles HyperWar's 450 t vs DANFS's 295 (standard vs full-load conventions). Contains no asbestos information; supports no asbestos claim.

   Atlas source

   true

   Evidence ID

   ev-uss-engage-am93-04

5. [5]HyperWar 'Ships of the U.S. Navy, 1940-1945' - PC-1597 (USS Engage) specification page (Patrick Clancey compilation, sourced from official-type references per its methodology note) [other_primary]

   Locator

   ibiblio.org/hyperwar/USN/ships/PC/PC-1597.html - specification block (compiled 1997)

   Finding type

   historical_record

   Finding

   PC-configuration spec block for this hull: 'PC-1568 class 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 Dravo Corp and commissioned as AM-93 1942; Converted to Sub Chaser (PC-1597) 1944.' The 450-ton figure matches the NavSource class index's full-load displacement ('At 450 tons full load, the Adroit class displaced 18 tons more than did the PCs'); DANFS's 295 is the standard/design displacement. Unlike sibling-page defects observed on other PC pages (HyperWar's PC-1593 page wrongly credits Commercial Iron Works for AM-89), this page's 'Built at Dravo Corp' is correct for AM-93.

   Verification

   partial

   Role

   context

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1944-1945 (PC configuration)

   Population

   n/a (specification record)

   Limitations

   Secondary compilation. Its complement (105) conflicts with DANFS/NavSource (65) - likely PC-fit vs AM-fit figures, unresolved. Its '1,770 shaft hp' is a total-plant reading between NavSource's 900-hp-per-engine (1,800) and the class index's 1,770-bhp-per-engine (3,540) - flagged in ev-08. Its draft '11'7"' conflicts with DANFS '7'7"' and NavSource '6'6"'. Contains no asbestos information.

   Atlas source

   true

   Evidence ID

   ev-uss-engage-am93-05

6. [6]Consolidated era/design inference - documented construction and machinery (NavSource class index: steel-hulled, twin-diesel PC-461-type hull; 'two 1,770 bhp Cooper-Bessemer GNB-8 diesels'; NavSource per-hull spec block: 'Two 900hp Cooper Bessemer GNB8 ... two shafts') + documented builder and construction era (DANFS; Colton Dravo and minesweeper tables, 1942) [other_primary]

   Locator

   NavSource 12/01idx class narrative (steel hull, machinery, class conversion) + 11/02093 propulsion line; DANFS AM-93 entry; Colton dravoboats.htm + minesweepers1.htm rows

   Finding type

   asbestos_application

   Finding

   Era/design inference: this hull is a 1942-built, steel-hulled, twin-diesel vessel - a PC-461-type hull completed as a minesweeper - with no boilers and no steam distribution, so its insulation load was materially lighter than a steam combatant's but not negligible: a steel hull still carried accommodation joiner work, electrical systems, and machinery requiring lagging and gasketing, and construction fell squarely inside the Navy's asbestos-use era (substitution did not begin until the early 1970s). Era-typical asbestos applications for a vessel of this type and period: engine and exhaust-system lagging on the two diesels and generator sets; machinery gaskets and packing; electrical-cable insulation; joiner/accommodation insulation; deck coverings/floor tile of the period; winch and windlass brake linings. Exposure-relevant populations if any such material was present: Dravo Corporation construction trades (Neville Island, Pittsburgh, 1942); the commissioned crew (~65) across the 1942-45 Bermuda, Norfolk, and Mediterranean service; Norfolk Navy Yard workers during the documented May-June 1944 conversion (class-level documentation); Jacksonville decommissioning workers (1945); the Maritime Commission disposal workforce (1946); and - per secondary fate accounts - Dominican Navy crews (1946/47-1961+) and whatever disposal workforce handled the hull after Dominican service.

   Verification

   inferred

   Role

   supporting

   Documentation level

   class_or_era

   Accessed

   2026-09-22

   Study period

   1942-1968

   Population

   Dravo trades 1942; crew 1942-45; Norfolk Navy Yard workers May-June 1944; Jacksonville decommissioning workers 1945; MC disposal workforce 1946; Dominican Navy crews ~1946/47-1961+ (secondary)

   Limitations

   Inference from documented design, machinery type, and construction era - NOT a hull materials record. No survey, specification, or material schedule naming AM-93/PC-1597 was located; establishes no asbestos content, quantity, location, condition, individual exposure, or causation. The diesel (non-steam) plant weakens the inference relative to steam vessels of the same era, though the steel hull and 1942 construction keep it within the asbestos-era window. Post-Navy populations rest on secondary fate accounts (conflicts flagged in ev-08).

   Atlas source

   true

   Evidence ID

   ev-uss-engage-am93-06

7. [7]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) - product-page description (gao.gov returns HTTP 403 to automated fetch - standing condition since BATCH-01); and T.J. Bigley (Navy) letter to GAO, 5 Jan 1979, as quoted in 'The Asbestos Health Hazards Compensation Act,' Journal of Legislation (Notre Dame) 10(1) [gao]

   Locator

   gao.gov/products/hrd-80-2 product page; Notre Dame J. Legislation 10(1), 'The Asbestos Health Hazards Compensation Act' (scholarship.law.nd.edu/jleg/vol10/iss1/3) quoting Bigley letter of 5 Jan 1979

   Finding type

   gov_survey

   Finding

   Program-level documentation of the asbestos window containing this hull's entire construction and commission: GAO HRD-80-2 records that the Navy's product specifications for thermal insulation were changed in 1973 to specify asbestos-free materials, but asbestos materials already purchased were still installed - 'some ships were delivered with asbestos insulation as late as May 1978'; the Navy's elimination policy issued October 1975. A Navy letter to GAO dated 5 January 1979 (T.J. Bigley to Robert F. Hughes, quoted in the Notre Dame Journal of Legislation) states: 'all ships presently in service contain some quantity of asbestos.' AM-93/PC-1597 was built 1942 and in U.S. commission 1942-45 - entirely inside the pre-1973 as-built asbestos era.

   Verification

   verified

   Role

   context

   Documentation level

   class_or_era

   Accessed

   2026-09-22

   Study period

   1973-1979 policy window documented; hull era 1942-1946

   Population

   Navy personnel and shipyard workers, service-wide (era context)

   Limitations

   Program/era-level documentation; neither source names this vessel, class, or builder. GAO's fieldwork concerned shipyard workers (Long Beach, Norfolk). The 'all ships' statement is quoted from a primary letter via a law-review source - the letter itself was not retrieved. gao.gov returned HTTP 403 to automated fetch (standing since Batch 01); the product-page description was relied on. Establishes nothing about this hull's materials, condition, or any individual exposure - and for a diesel-plant vessel the proposition applies with materially reduced scope.

   Atlas source

   true

   Evidence ID

   ev-uss-engage-am93-07

8. [8]Source-discrepancy resolution - DANFS official text (Wayback capture) vs hazegray mirror vs NavSource 11/02093 + 12/01idx class index vs HyperWar PC-1597 spec block vs Colton yard tables vs Wikipedia/uboat.net/historycentral secondary readings [other_primary]

   Locator

   Wayback NHHC capture + losthistory.net/hazegray/danfs/mine/am93.htm; navsource.net/archives/11/02093.htm + 12/01idx.htm; ibiblio.org/hyperwar/USN/ships/PC/PC-1597.html; shipbuildinghistory.com dravoboats.htm + minesweepers1.htm; uboat.net/allies/warships/9256.html; en.wikipedia.org/wiki/USS_Engage_(AM-93); historycentral.com/navy/Minelayer/Engage.html; va.gov/vetapp16/Files2/1611167.txt

   Finding type

   historical_record

   Finding

   Source discrepancies logged, not silently merged: (a) Keel-laying - NavSource/Wikipedia read 26 February 1942; uboat.net reads 15 February 1942; DANFS omits the date entirely. 26 Feb carried as better-supported; conflict flagged. (b) Dominican transfer year - NavSource/Wikipedia 'transferred to the Dominican Republic in 1946'; Colton's own two tables conflict: dravoboats.htm 'to the Dom. Rep. 1946 as Cibao (P 103)' vs minesweepers1.htm 'to the Dom. Rep. 1947' - internal secondary conflict carried unresolved; the Maritime Commission transfer (8 Nov 1946, DANFS) is the last official milestone. (c) End of Dominican service - NavSource/Wikipedia 'placed out of service in 1961. Fate unknown' vs Colton minesweeper table 'discarded 1968' - unresolved. (d) Displacement - DANFS/NavSource '295' vs HyperWar '450 tons' vs class index 'At 450 tons full load ... 18 tons more than did the PCs' - resolved as standard/design (295) vs full-load (450) conventions. (e) Draft - DANFS spec block '7'7"' vs NavSource AM-fit '6'6"' vs HyperWar '11'7"' - likely AM-fit vs PC-fit; unresolved. (f) Speed - DANFS '16 k' vs NavSource '16 kts' vs class index '16.8 knots at 330 tons' vs HyperWar '17 knots' - consistent range, variants flagged. (g) Complement - DANFS/NavSource '65' and class index 'four officers and 61 enlisted' (=65) vs HyperWar '105' - likely PC-fit crew; unresolved. (h) Propulsion - NavSource per-hull 'Two 900hp Cooper Bessemer GNB8' (=1,800 total; serials 1977 and 1980) vs class index 'two 1,770 brake horsepower' (=3,540 total) vs HyperWar '1,770 shaft hp' (total) vs Wikipedia '2 x 1,770 bhp' - engine type (Cooper-Bessemer GNB-8, two, twin screw) consistent; rating unresolved. (i) Armament - DANFS 'a. 1 3"' vs NavSource 'one 3"/50 DP, one 40mm, five 20mm, two DCT, two DCP' vs HyperWar '1 3"/50, 1 40mm' - likely spec-block brevity vs fit at different dates; unresolved. (j) Reclassification semantics - DANFS 'reclassified PC-1597 ... and her name canceled' vs Wikipedia infobox 'Renamed USS PC-1597' - the name was cancelled, not renamed; the hull served number-only thereafter. (k) Mirror/secondary defects - historycentral.com's transcription prints 'PC-1557' for PC-1597; not propagated. (l) Name collision - 'U.S.S. Engage' in BVA citation 1611167 (2016, Vietnam 1969-71, quartermaster, Agent Orange/diabetes claim) resolves to the OTHER hull, MSO-433 - documented so no downstream reader attributes it to AM-93.

   Verification

   partial

   Role

   correction

   Documentation level

   ship_specific

   Accessed

   2026-09-22

   Study period

   1942-1968

   Limitations

   Resolves publication-level discrepancies among the official DANFS text and secondary compilations, adopting the better-supported values and flagging the rest. None of the sources bears on asbestos; the spec conflicts are documented so no downstream user silently merges incompatible figures, and the MSO-433 collision is documented so no downstream reader mis-attributes records between the two USS Engages.

   Atlas source

   true

   Evidence ID

   ev-uss-engage-am93-08

9. [9]In re Dravo LLC - Derivative Claims Against Carmeuse Lime, Inc., 307 A.3d 146 (Pa. Super. Ct. 2023), reversed, No. 33 WAP 2024 (Pa. May 22, 2026) - published appellate record on builder Dravo Corp.'s asbestos liabilities [court_record]

   Locator

   Pa. Supreme Court No. 33 WAP 2024 majority opinion (pacourts.us, J-79A-2025) - stipulated-facts recital; In re Dravo LLC, 307 A.3d 146 (Pa. Super. 2023), Nos. 1210 & 1284 WDA 2022

   Finding type

   litigation_documented

   Finding

   Builder-level asbestos litigation context, published appellate record: the stipulated record documents that 'since at least the early 1990s, Dravo has been sued in a number of lawsuits that sought damages due to alleged bodily injury caused by exposure to asbestos, where the exposure typically occurred during its operations from the 1940s through the 1980s' - a window containing this hull's entire 1942 construction at Dravo's Neville Island yard. The proceeding itself is corporate, not exposure litigation: asbestos claimants sought to pierce the veil of the dissolved Dravo LLC to reach parent Carmeuse Lime; the Superior Court (307 A.3d 146, filed 19 Dec 2023) reversed summary judgment for the parent and remanded; the Pennsylvania Supreme Court (No. 33 WAP 2024, decided 22 May 2026, J. Brobson) reversed the Superior Court, holding the equitable remedy of veil piercing unavailable to plaintiffs whose claims against the dissolved LLC are time-barred under the LLC Act - i.e., claims against the parent are barred on limitation grounds. The exposure allegations underlying the proceeding remain allegations - no court in this record adjudicated asbestos conditions at the Neville Island yard in any specific case.

   Verification

   verified

   Role

   context

   Documentation level

   class_or_era

   Accessed

   2026-09-22

   Study period

   1940s-1980s (alleged exposure window); 2020-2026 (proceeding)

   Population

   Asbestos claimants against Dravo Corp. (alleged exposure during company operations 1940s-1980s; venue-level, not hull-level)

   Limitations

   Builder-level litigation context only - this proceeding names Dravo Corp. and its corporate successors, never this hull, and the dispositive rulings resolve successor-liability and timeliness questions, not exposure facts. Per litigation-stage discipline: the underlying asbestos claims are allegations (pleading stage); the appellate record documents the existence and corporate posture of the litigation, not any finding of asbestos aboard AM-93 or at the yard in a specific case. Establishes nothing about this hull's materials, any individual exposure, or legal eligibility.

   Atlas source

   true

   Evidence ID

   ev-uss-engage-am93-09

10. [10]Batch-1445 search ledger (this record): DANFS official text via verified Wayback capture + hazegray/losthistory mirror; NavSource 11/02093 + 12/01idx class index; HyperWar Ships of the U.S. Navy PC-1597 page; Shipbuilding History Dravo + minesweeper tables; uboat.net; Naval Vessel Register probe; MARAD vessel history database probe; CourtListener API v4 (authenticated - throttled) + Google-indexed sweeps; VA BVA index via Google; NARA catalog API probe; PCSA collection inventory; Wikipedia/historycentral (secondary leads) [other_primary]

    Locator

    search_ledger rows sl-uss-engage-am93-01 through sl-uss-engage-am93-15

    Finding type

    historical_record

    Finding

    No qualifying ship-specific asbestos record located for USS Engage / AM-93 / PC-1597: no asbestos survey, abatement contract, hazmat disclosure, material schedule, court finding, docketed asbestos case, or VA Board of Veterans' Appeals decision naming this hull was found in the public sources searched (see search_ledger). CourtListener coverage caveat: the authenticated API returned HTTP 429 ('Request was throttled. Rate limit exceeded: 2800/day. Expected available in 14582 seconds' - the shared quota was exhausted by earlier same-day batch work; no unauthenticated queries were run per batch rules). The litigation sweep therefore ran through Google-indexed CourtListener content and general web: 'PC-1597' and 'USS Engage'/'AM-93' surfaced no vessel-naming asbestos hit in any opinion or docket index reachable. Two collision classes documented: (a) 'engage' as a common English word and as a commercial/organizational name generates heavy noise in unqualified searches - all sweeps used qualifying strings; (b) the only 'U.S.S. Engage' hit in the VA BVA corpus (citation 1611167, 2016) is a Vietnam-era quartermaster's Agent Orange/diabetes claim aboard the OTHER USS Engage (MSO-433, 1969-71 Market Time service) - a name collision, not this hull, and not an asbestos decision. Non-authoritative marketing rosters carry the name in generic ship tables - mesothelioma.com's minesweepers page lists 'USS Engage | AM-93 | Adroit | 10/22/1942 | To Dominican Republic, 1946' alongside the MSO-433 entry, and mesothelioma.net's patrol-boat page lists both 'USS Engage (AM-93)' and 'USS PC-1597' - excluded per source rules; they carry 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 1942 steel-hulled naval vessel is era-consistent with asbestos-containing materials even accounting for its lighter diesel insulation load. The hull left U.S. custody in 1946 (Maritime Commission) and passed to the Dominican Republic, so no present-day survey pathway exists and the hull's material fate after 1961/1968 is undocumented. The CourtListener sweep is incomplete (shared-cap exhaustion) - a fully authenticated re-sweep of opinions and RECAP dockets remains an open verification step. Does not establish presence or absence; does not establish or defeat any exposure claim or legal eligibility.

    Atlas source

    true

    Evidence ID

    ev-uss-engage-am93-10

11. [11]Archival leads - Patrol Craft Sailors Association Collection & Archives inventory (bchsmuseum.org PDF) listing 'PC 1597 USS Engage' research materials; plus NARA RG 24 deck logs for this hull's October 1942 - November 1945 commission; WWII muster rolls; war-diary microfilm series (DPLA-indexed sibling example: 'USS ADVENT - War Diary, 6/1-30/43,' Micro Serial 53523, NARA ID 135908264 - a parallel Engage item plausible but unverified); NHC photo S-511-13 ('Mine Sweeper - Adaptation of PC 452 Type,' 6 January 1941 - class design record credited on NavSource class pages); NARA RG 19 Bureau of Ships records per the asbestos guided-topic page - hull files 'AM93'/'PC1597,' PC-461/Adroit-class correspondence, 'QM/Dravo' contract files, Entry P-11 minesweeper General Information Books (Item S-68), S39/S48/S103 hull-series drawings; RG 181 Norfolk Naval Shipyard job files (May-June 1944 conversion); U.S. Maritime Commission disposal file for the 8 November 1946 transfer + Dominican Republic handover documentation [other_primary]

    Locator

    bchsmuseum.org PCSA Collection & Archives PDF ('PC 1597 USS Engage' entry); archives.gov RG 19/24/181 group guides + asbestos guided-topic page (archives.gov/research/military/navy/guided-topics/asbestos); NavSource 11/02093 + class-page photo credit (NHC S-511-13); DPLA item for sibling Advent war diary (sibling-batch record)

    Finding type

    historical_record

    Finding

    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) PCSA Collection & Archives inventory explicitly lists 'PC 1597 USS Engage' among its patrol-craft research/artifact holdings - the one located collection naming this hull, contents unknown; (b) NARA RG 24 deck logs, Oct 1942 - Nov 1945 - the documentary base for the Bermuda, Norfolk, and Mediterranean operations; (c) muster rolls for the commission period; (d) war diaries in the NARA microfilm series where sibling hull Advent's 'USS ADVENT - War Diary, 6/1-30/43' is indexed (DPLA item, NARA ID 135908264 - a parallel Engage item is plausible but unverified); (e) NHC photo S-511-13, the 6 January 1941 'Adaptation of PC 452 Type' design plan credited on NavSource's class pages - the closest existing thing to a class design record; (f) NARA RG 19 BuShips records per the asbestos guided-topic page - hull files 'AM93'/'PC1597,' PC-461/Adroit-class correspondence, 'QM/Dravo' contract files, P-11 minesweeper GIBs, and S39/S48/S103 hull-series drawings - the plausible home of hull-level material schedules; (g) RG 181 Norfolk Naval Shipyard job files for the May-June 1944 conversion (the Atlantic units' documented conversion yard per the class index); (h) the U.S. Maritime Commission disposal file for the 8 November 1946 transfer and any Dominican Republic handover record - the documentary path to the hull's post-Navy fate.

    Verification

    unverified

    Role

    archival_lead

    Documentation level

    context_only

    Accessed

    2026-09-22

    Study period

    1941-1948 records

    Limitations

    Record-group mapping plus one confirmed collection-inventory listing - no box-level retrieval performed; existence of asbestos-specific documents for AM-93/PC-1597 is unknown until surveyed in person. Deck logs, muster rolls, war diaries, and contract files are personnel/operations records, not materials documentation; the BuShips design file is the best candidate for a material schedule. Nothing in this row is an asbestos finding.

    Atlas source

    true

    Evidence ID

    ev-uss-engage-am93-11