Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
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[1]research packet 906-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: **VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-552-pc552-pkt-906-packet-md
-
[2]NavSource Online, Submarine Chaser Photo Archive: PC-552 [other_primary]
- Locator
- PC-552 page: chronology/specifications block and caption table
- Finding type
- vessel_history
- Finding
- NavSource's PC-552 chronology reports that the PC-461-class submarine chaser was laid down 20 May 1941 by Sullivan Dry Dock and Repair Co., Brooklyn, New York; launched 13 February 1942; commissioned 29 July 1942; decommissioned 18 April 1946; struck from the Naval Register 5 June 1946; and transferred to the War Shipping Administration for disposal 5 December 1946. Its specifications block reports a 65-person complement and two 1,440-bhp General Motors 16-258S diesel engines (serial nos. 6327 and 6328), Farrel-Birmingham single-reduction gear, and two shafts.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1946
- Population
- Sullivan Dry Dock construction trades (1941-42); ship's company during reported 1942-46 service
- Limitations
- NavSource is a volunteer-maintained photo archive and secondary compilation, not an official Navy registry. Its chronology and equipment data were not independently confirmed by an accessible Navy construction, commissioning, or register record in this pass. The page has no asbestos survey, product, abatement, or exposure finding.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-552-pc552-01
-
[3]National Archives, Special List No. 44, List of Logbooks of the U.S. Navy at the National Archives, arranged by ship number [other_primary]
- Locator
- PDF p. 70, row PC-552
- Finding type
- historical_record
- Finding
- NARA's official ship-number list records PC-552 logbook coverage from 29 July 1942 through 30 June 1945. The listing identifies an operational-record trail for the hull during that interval.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-07-29 to 1945-06-30
- Population
- PC-552 ship's company during the listed logbook period
- Limitations
- The finding aid gives indexed logbook coverage, not contents; it does not independently establish commissioning, decommissioning, builder, service narrative, asbestos presence, or exposure. The underlying logs were not retrieved.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-552-pc552-02
-
[4]U.S. General Accounting Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (18 October 1979) [gao]
- Locator
- GAO product page, Highlights
- Finding type
- gov_survey
- Finding
- GAO's 1979 review covered Navy use of asbestos in Navy ships and the cost and policy of removing asbestos from Navy ships at Long Beach and Norfolk Naval Shipyards. Its highlights state that the Navy's 1975 policy removed and replaced with nonasbestos material only insulation that was damaged or needed removal for repairs, and that the policy was modified in 1979 for selective replacement in high-maintenance areas.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-03
- Study period
- 1975-1979 policy and review period
- Population
- Navy ships and workers within GAO's Long Beach/Norfolk review scope
- Limitations
- This is Navy-wide, post-service program context; the report does not name PC-552, the PC-461 class, or Sullivan Dry Dock and does not establish any asbestos material, quantity, location, exposure, or legal eligibility for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-552-pc552-03
-
[5]National Archives, Researching Asbestos aboard US Naval Vessel up through 1961 [other_primary]
- Locator
- NARA guide: Beginning Research; Bureau of Ships correspondence; private-contractor filing guidance; Patrol Craft General Information Books
- Finding type
- historical_record
- Finding
- NARA identifies RG 19 Bureau of Ships correspondence arranged by ship designation, class, and private-yard filing designation, plus Patrol Craft General Information Books and Navy deck logs, as research avenues for documenting whether a particular naval vessel had asbestos material. For PC-552, the relevant leads include PC-552/PC-461-class correspondence, the Sullivan Dry Dock private-contractor files, Patrol Craft General Information Books, and the NARA-listed logbooks.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- Records through 1961
- Population
- Researchers seeking ship-specific naval material records
- Limitations
- This is research guidance, not a hull materials record. No cited RG 19 file, General Information Book, Sullivan file, or underlying PC-552 deck log was retrieved; it does not establish asbestos aboard PC-552.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-552-pc552-04
-
[6]Era inference from NavSource PC-552 diesel specifications and GAO HRD-80-2 Navy-wide asbestos-use review [gao]
- Locator
- GAO HRD-80-2 Highlights; NavSource PC-552 specifications block
- Finding type
- asbestos_application
- Finding
- Era/class inference only: a 1941-42 diesel patrol craft falls within the Navy asbestos-use era addressed by GAO. Machinery and exhaust insulation, gaskets, valve packing, electrical insulation, and deck coverings are possible period application categories warranting record review; no source establishes that any were installed aboard PC-552.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1946
- Population
- Sullivan Dry Dock construction trades and PC-552 crew, as era context only
- Limitations
- This is not a ship-specific finding. The GAO report does not name PC-552 and NavSource's diesel specification is secondary. Neither source identifies an asbestos-containing product, manufacturer, quantity, location, or exposure on this hull. Diesel propulsion does not support a boiler or turbine-lagging claim.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-552-pc552-05
-
[7]Authenticated CourtListener v4 base-query sweep via cl-auth-search.py helper [court_record]
- Locator
- search_ledger sl-uss-pc-552-pc552-05 through -08
- Finding type
- litigation_documented
- Finding
- All four required authenticated base searches were initiated: exact-name opinion and docket searches for "USS PC-552", and hull-number opinion and docket searches for "PC-552", each with limit 20. The helper printed only its authenticated-request notice and returned no result payload before the execution harness ended. No hit, no-result, overflow, or litigation classification is asserted.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03 attempt
- Population
- CourtListener opinions and RECAP dockets
- Limitations
- This is an incomplete litigation sweep, not evidence that no litigation exists. No asbestos-qualified variants were run because no completed base page established a 20-result overflow. No anonymous, raw, curl, or v3 CourtListener request was made.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-552-pc552-06
-
[8]USS PC-552 research ledger and source review, 2026-10-03 [other_primary]
- Locator
- search_ledger sl-uss-pc-552-pc552-01 through -10
- Finding type
- asbestos_application
- Finding
- No ship-specific asbestos survey, abatement record, hazmat disclosure, material inventory, product identification, or exposure account was located in the accessible source review. The record remains class/era context rather than a ship-specific asbestos finding.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Limitations
- This bounded research result is not proof that asbestos was absent or that no record exists. The best leads are unexamined RG 19 correspondence, Patrol Craft General Information Books, Sullivan Dry Dock files, and NARA-listed deck logs; CourtListener results were unavailable.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-552-pc552-07