Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
-
[1]research packet 907-packet.md (3 sources cited) [nhhc_danfs]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-559-pc559-pkt-907-packet-md
-
[2]NavSource Online, Submarine Chaser Photo Archive, PC-559 (live hull page verified 2026-10-03) [other_primary]
- Locator
- Hull page, history bullets and final note that no DANFS history is available
- Finding type
- vessel_history
- Finding
- The hull page identifies PC-559 as a PC-461-class submarine chaser: laid down 14 October 1941 by Jeffersonville Boat and Machine Co. at Jeffersonville, Indiana; launched 2 January 1942; commissioned 12 May 1942; assigned to the Caribbean Sea Frontier, Atlantic, and Mediterranean; participated in Tunisian, Sicilian, Salerno, west-coast-of-Italy, and Anzio-Nettuno operations; decommissioned 6 October 1944 at Toulon, transferred to France and named Voltigeur (W 103); struck from the Navy Register 12 March 1970 and sold for scrap. The page also states that no DANFS history is available for PC-559.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1970
- Population
- Jeffersonville construction trades (1941-42); U.S. Navy crew (1942-44); French Navy crew after transfer
- Limitations
- This is a ship-specific historical compilation, not a materials survey. It does not establish asbestos content, exposure, quantities, remaining material, or legal eligibility. The post-transfer French service and final disposition were not located. NavSource's statement that no DANFS history is available is itself an archival-access finding, not proof that no Navy record exists.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-559-pc559-01
-
[3]NavSource Online, PC-559 specifications (live hull page verified 2026-10-03) [other_primary]
- Locator
- Hull page, specifications block
- Finding type
- vessel_history
- Finding
- The hull page reports 280 long tons light and 450 tons full load; 173 feet 8 inches length; 23 feet beam; 10 feet 10 inches draft; 20 knots; complement 65; and propulsion by two 1,440-bhp General Motors 16-258S diesel engines with Farrel-Birmingham reduction gear and two shafts.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1944
- Population
- Crew and engineering personnel aboard PC-559
- Limitations
- These are specifications reported by NavSource and are not an asbestos inventory. The diesel specification does not establish what insulation, gaskets, packing, electrical components, or exhaust lagging were installed on this hull. No steam plant is reported here, so no boiler/turbine claim is carried.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-559-pc559-02
-
[4]U.S. General Accounting Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (1979), live PDF verified 2026-10-03 [gao]
- Locator
- PDF pp. 1-2 (shipboard use and policy) and p. 8 (conclusions)
- Finding type
- gov_survey
- Finding
- GAO reported that the Navy's major shipboard use of asbestos was thermal insulation and that, although recently constructed ships had little or no asbestos thermal insulation, other Navy ships contained large quantities. The report also records Navy policy changes beginning in the 1970s to specify asbestos-free thermal insulation and selectively replace asbestos insulation in high-maintenance areas.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1979 review of Navy practices through the late 1970s
- Population
- Navy shipyard workers and Navy vessels covered by the program review
- Limitations
- Program-level evidence from reviews of Long Beach and Norfolk Naval Shipyards; it does not name PC-559, identify a component aboard this hull, establish exposure of any person, or prove that any material remains aboard. Used only as class/era context for a 1941-42-built Navy combatant.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-559-pc559-03
-
[5]Research ledger for PC-559: NHHC/DANFS, NavSource, NARA, GAO, and authenticated CourtListener review [other_primary]
- Locator
- search_ledger rows sl-uss-pc-559-pc559-01 through -08; cl-pc559-* artifacts; completed source rows ev-01 through ev-03
- Finding type
- historical_record
- Finding
- No ship-specific asbestos survey, abatement contract, hazmat disclosure, or qualifying asbestos-litigation record was located in the sources completed for this record. The four-query CourtListener sweep was not completed: the authenticated helper reached the fleet pacing-budget stop during the first two attempted base queries, so no complete litigation negative can be claimed. No asbestos-qualified variants were run.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- This is a bounded research result, not proof that no record exists. CourtListener coverage is incomplete and must not be represented as four-query completion. Undigitized Navy, builder, French Navy, disposal, and litigation records remain open leads; absence of a located public record does not establish absence of asbestos aboard or defeat any exposure claim.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-559-pc559-04
-
[6]NavSource PC-559 hull page and PC-461-class context (live page verified 2026-10-03) [other_primary]
- Locator
- NavSource hull page, PC-461 class and diesel specifications; GAO context in ev-03
- Finding type
- asbestos_application
- Finding
- Class/era inference only: a steel PC-461-class submarine chaser built in 1941-42 for wartime Navy service falls within the Navy shipboard asbestos-use period documented by GAO. Possible era-standard applications include thermal insulation, machinery or diesel-exhaust lagging, gaskets, valve packing, and electrical insulation; none is confirmed as installed aboard PC-559 by the cited hull page.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1944
- Population
- Construction trades and crew of a 1941-42 steel diesel submarine chaser
- Limitations
- This row is not a ship-specific asbestos finding and cannot support wording that asbestos was documented aboard PC-559. It supplies only cautious context from class, construction era, and diesel configuration; no quantity, manufacturer, location, or exposure pathway is established.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-559-pc559-05