Evidence
7 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-7).
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[1]research packet 942-packet.md (2 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED, thinly sourced (disclosed).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Limitations
- qualifier: VERIFIED, thinly sourced (disclosed).
- Evidence ID
- uss-pc-813-pc813-pkt-942-packet-md
-
[2]USS Blackfish (SS-221), Twelfth War Patrol Report, 14 August 1945 entry, scanned declassified report hosted by WWII Submarine Patrol Reports [other_primary]
- Locator
- PDF, 14 August 1945 daily entry: 0430 rendezvous with PC 813; 0850 moored alongside Fulton (AS-11)
- Finding type
- vessel_history
- Finding
- The original Blackfish patrol report records that at 0430 on 14 August 1945 Blackfish rendezvoused with PC 813 and at 0850 moored alongside USS Fulton (AS-11). This is direct operational evidence that PC 813 was operating with the U.S. Navy in the Pacific on that date.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945-08-14
- Population
- PC-813 and USS Blackfish crews; U.S. Navy Pacific operations
- Limitations
- The report records the rendezvous, not PC-813's complete assignment, command, crew complement, or material condition. The copy is hosted by a specialist archive rather than a current Navy domain; the underlying document is a wartime U.S. Navy patrol report. It contains no asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-813-pc813-01
-
[3]ShipbuildingHistory, Commercial Iron Works table, PC-813 row, live page verified 2026-10-03 [other_primary]
- Locator
- Commercial Iron Works page, PC-813 row (line 89 in live extraction)
- Finding type
- vessel_history
- Finding
- The Commercial Iron Works table identifies PC-813 as a U.S. Navy submarine chaser built by Commercial Iron Works and records 19 May 1945 as its delivery date, with transfer to Mexico in 1948 as GC 33. The same table identifies the PC-461 series dimensions as 463 tons and 173 feet in the surrounding ship entries; those dimensions are not carried as ship-specific specifications here.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1945-1948
- Population
- Commercial Iron Works workforce; U.S. Navy and later Mexican operators
- Limitations
- ShipbuildingHistory is a specialist compiled reference, not a Navy registry or construction contract. Its 19 May 1945 field is labeled delivery, not explicitly commissioning, and the source does not provide a decommissioning date, striking date, crew complement, or present location. Mexican service after transfer is not further documented here.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-813-pc813-02
-
[4]uboat.net Allied Warships of WWII, USS PC-813 warship file 8640, live search result verified 2026-10-03 [other_primary]
- Locator
- Warship file 8640, identity and construction table
- Finding type
- vessel_history
- Finding
- The specialist warship reference identifies USS PC-813 as a U.S. Navy PC-461-class patrol craft built by Commercial Iron Works in Portland, Oregon, laid down 11 December 1943, launched 27 March 1944, and commissioned 19 May 1945.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1945
- Population
- Commercial Iron Works construction workforce; U.S. Navy crew
- Limitations
- This is a secondary reference compilation rather than a Navy primary record. The dates corroborate the batch-supplied construction and commissioning spine and ShipbuildingHistory's delivery date, but do not establish asbestos content, exposure, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-813-pc813-03
-
[5]NavSource Online, PC-816 page in the PC-461-class photo archive, live page verified 2026-10-03; used as class/era context only [museum_official]
- Locator
- PC-816 page, PC-461 Class Submarine Chaser specifications
- Finding type
- historical_record
- Finding
- The PC-461-class reference gives a 450-ton displacement, 173-foot 8-inch length, 65-person complement, and two-diesel/two-shaft propulsion arrangement for a sister craft. This establishes class design context relevant to PC-813, not a survey of this hull.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- World War II construction and service era
- Population
- PC-461-class patrol craft
- Limitations
- The page is for PC-816, not PC-813. It cannot establish PC-813's exact machinery, complement, alterations, or asbestos-containing materials. No class specification is treated as proof that a product was installed aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-813-pc813-04
-
[6]U.S. General Accounting Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2, 18 October 1979, live PDF verified 2026-10-03 [gao]
- Locator
- Report pp. 1-2, Navy policy and shipboard asbestos discussion
- Finding type
- gov_survey
- Finding
- GAO reported Navy-wide information that asbestos had been used in ship components and that thermal insulation was the Navy's major shipboard asbestos application; it also described the Navy's later policy to replace asbestos where feasible.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-03
- Study period
- 1973-1979 policy and review period
- Population
- Navy ships and shipyard workers at program level
- Limitations
- Program-level evidence from a review of Long Beach and Norfolk naval shipyards, not an inspection, survey, material specification, or abatement record for PC-813 or the PC-461 class. It does not establish that any asbestos-containing product was installed aboard this hull or that anyone was exposed.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-813-pc813-05
-
[7]This record's official-source review and CourtListener search ledger, 2026-10-03 [other_primary]
- Locator
- Search-ledger rows sl-uss-pc-813-pc813-01 through -10
- Finding type
- historical_record
- Finding
- No ship-specific asbestos survey, material specification, product identification, abatement record, hazmat disclosure, or verified asbestos-litigation result for PC-813 was located in the sources reviewed. Asbestos aboard this hull remains unknown.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03 source review
- Population
- PC-813 crew, shipyard workers, later operators, and potential litigants
- Limitations
- A negative public-record search does not prove asbestos was absent. Firecrawl was unavailable because its keyless MCP quota was exhausted. CourtListener work was stopped by the authenticated fleet-wide pacing limiter before result payloads could be classified; litigation status is therefore unresolved, not a no-result finding.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-813-pc813-06