Evidence
5 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-5).
-
[1]research packet 897-packet.md (2 sources cited) [museum_official]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-490-pc490-pkt-897-packet-md
-
[2]National Archives, Special List #44, Navy Deck Logs, 1941-1945, by Ship Number [other_primary]
- Locator
- PDF p. 69, entry PC-490: 3/12/1942 to 6/30/1945
- Finding type
- vessel_history
- Finding
- NARA's Special List 44 indexes deck logs for USS PC-490 from 12 March 1942 through 30 June 1945. This establishes an official archival holding for the hull during that period and identifies the logs as the primary lead for its detailed service, maintenance, and material history.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-03-12 to 1945-06-30
- Population
- PC-490 crew during the indexed 1942-45 deck-log period
- Limitations
- The list indexes log-date coverage; it is not a construction record, a full service history, or a material survey. It does not establish a commission date, asbestos presence, individual exposure, or any legal claim.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-490-pc490-01
-
[3]Naval History and Heritage Command, H-064-2: Close Quarters Antisubmarine Warfare (Part 2) [nhhc_danfs]
- Locator
- Paragraph beginning 'Meanwhile, by 25 September 1943,' parenthetical identifying Abel's prior PC-490 command
- Finding type
- historical_record
- Finding
- NHHC's H-gram 064 identifies Lieutenant Commander Brent Maxwell Abel as having commanded patrol craft PC-490 when it tried to catch the German submarine U-66 after U-66 mined St. Lucia. The reference appears in NHHC's account of Abel's later command of USS Buckley and confirms the hull's patrol-craft identity and an antisubmarine operational episode.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- World War II; precise PC-490 episode date not stated
- Population
- PC-490 crew during Abel's command; precise dates not stated in this source
- Limitations
- This is a brief retrospective operational reference, not a PC-490 history or machinery/material record. It does not identify construction, equipment, asbestos-containing material, individual exposure, or litigation.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-490-pc490-02
-
[4]U.S. Government Accountability Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct. 18, 1979) [gao]
- Locator
- GAO product-page Highlights
- Finding type
- gov_survey
- Finding
- GAO's 1979 review states that it reviewed the use of asbestos in Navy ships and Navy policy for removing and replacing asbestos insulation. The stated 1975 policy was to remove and replace with nonasbestos material only insulation that was damaged or had to be removed for repairs; in 1979 the policy expanded selective replacement in high-maintenance areas.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1975-1979 policy review
- Population
- Navy shipyard workers and Navy vessels reviewed by GAO; not PC-490-specific
- Limitations
- Navy-wide program documentation based on review at Long Beach and Norfolk Naval Shipyards; PC-490 is not named. It does not establish that asbestos was installed, removed, retained, or disturbed aboard this hull, nor does it establish exposure, causation, quantity, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-490-pc490-03
-
[5]Batch 7865 documented research ledger: authenticated CourtListener searches and authoritative-source sweep [other_primary]
- Locator
- search_ledger entries sl-uss-pc-490-pc490-01 through -05
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos litigation, asbestos survey, abatement record, hazmat disclosure, or material list for USS PC-490 was located in the authoritative sources searched. The authenticated CourtListener sweep returned no results for exactly four base searches: exact-name opinion and docket searches for 'USS PC-490,' and hull-number opinion and docket searches for 'PC-490,' each limited to 20 results. None overflowed, so no asbestos-qualified variants were run.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- Research performed 2026-10-03
- Limitations
- A negative search result is not evidence that asbestos was absent or that no person was exposed. The deck logs are an unreviewed primary archival lead, and undiscovered agency, yard, foreign-transfer, or court records may exist. CourtListener searches were correctly limited to the four required base queries and are not a substitute for all repositories.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-490-pc490-04