Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
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[1]research packet 869-packet.md (3 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-1220-pc1220-pkt-869-packet-md
-
[2]NHHC Dictionary of American Naval Fighting Ships (DANFS) index/search, confirmed via site-restricted search and NavSource's explicit 'no DANFS history' notation on the PC-1220 hull page [nhhc_danfs]
- Locator
- DANFS index/search (history.navy.mil); corroborating statement on https://www.navsource.net/archives/12/011220.htm ('There is no DANFS history currently available')
- Finding type
- historical_record
- Finding
- No DANFS (Dictionary of American Naval Fighting Ships) entry exists for USS PC-1220. NHHC's DANFS only covers a minority of PC-461-class hulls - chiefly those later given names upon foreign or civilian transfer (e.g., Antigo, PC-470; Alturas, PC-602) - and PC-1220 was not renamed. A direct NHHC site search and a general web search restricted to history.navy.mil returned no PC-1220 page; NavSource's own hull page states explicitly that 'no DANFS history [is] currently available' for this vessel.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Limitations
- Confirms absence of a DANFS entry; it does not establish that no documentary record of this hull exists elsewhere (e.g., NARA deck logs, ship's history files) - those were not independently retrieved this session (see gaps). This is a documentation-coverage finding, not an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1220-pc1220-01
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[3]NavSource Naval History, 'PC-1220' hull page (Section Patrol Vessels Photo Archive) [other_primary]
- Locator
- NavSource PC-1220 hull page, specification block, commanding-officer roster, and disposition line
- Finding type
- vessel_history
- Finding
- NavSource's ship-specific hull page for this vessel states: built by Luders Marine Construction Co., Stamford, CT; laid down 7 September 1943; launched 22 December 1943; commissioned 29 July 1944; displacement 450 tons; length 173'8", beam 23', draft 10'10"; speed 20.2 knots; complement 65; armament one 3"/50 dual-purpose gun mount, one 40mm gun mount, five 20mm guns, two rocket launchers, two depth charge tracks; propulsion two 1,440bhp Hooven-Owen-Rentschler R-99DA diesel engines, Westinghouse single-reduction gear, two shafts. Three WWII commanding officers are listed: William G. Moore, USNR (29 Jul 1944-late 1944); W.H. Deck, USNR (late 1944-early 1945); E.B. Mahle, USNR (early 1945-late 1945). The page states the vessel was 'Transferred to the War Shipping Administration in June 1948' with 'Fate unknown.'
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1948
- Population
- Wartime crew, complement 65; construction trades at Luders Marine Construction Co., Stamford, CT, 1943-44
- Limitations
- Documents construction, specifications, command roster, and last known status only - not materials or asbestos content. No decommissioning date, strike date, or post-1948 disposition is given; 'fate unknown' is NavSource's own characterization, not an omission on this project's part. No photograph of this hull is available on the cited page.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1220-pc1220-02
-
[4]NavSource propulsion/specification block (two Hooven-Owen-Rentschler R-99DA diesels, Westinghouse single-reduction gear) combined with general knowledge of WWII-era U.S. Navy diesel small-craft outfitting practice [other_primary]
- Locator
- NavSource PC-1220 propulsion specification line
- Finding type
- asbestos_application
- Finding
- Era/design inference: a PC-461-class submarine chaser built 1943-44 with a two-engine diesel plant (no boilers, no steam turbines) would carry period-standard exhaust-manifold and exhaust-line lagging, gaskets and packing on valves/pumps/fittings, and asbestos-insulated electrical cable, consistent with contemporaneous U.S. Navy small-craft outfitting practice. The absence of a steam plant removes the boiler/turbine lagging and steam-line insulation pathway that is the dominant asbestos source on steam-powered destroyers and larger combatants of the same era.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1944-1948
- Population
- Wartime crew, complement 65
- Limitations
- Class/design-level inference only - no ship-specific survey, abatement record, or materials inventory supports it. Does not establish quantity, location, or current presence of any asbestos-containing material aboard this specific hull. Never to be read as 'documented aboard this hull.'
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1220-pc1220-03
-
[5]U.S. GAO, HRD-80-2, 'Navy Efforts to Protect Workers From Asbestos Exposure' (Oct. 18, 1979) [gao]
- Locator
- GAO.gov report landing page, title and summary
- Finding type
- gov_survey
- Finding
- GAO report HRD-80-2, 'Navy Efforts to Protect Workers from Asbestos Exposure' (18 Oct 1979), reviewed Navy asbestos protection policy and practice at Long Beach and Norfolk Naval Shipyards, covering asbestos use aboard Navy vessels, removal costs, and compensation for asbestos-related illness; it documents the Navy's 1975 policy of removing and replacing only damaged insulation during repairs, updated in 1979 to selective replacement of asbestos insulation in high-maintenance areas.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1975-1979
- Population
- Navy shipyard workers, Long Beach and Norfolk Naval Shipyards, 1970s
- Limitations
- Program-level Navy policy context only. No documented connection to this hull: PC-1220 was privately built at Luders Marine Construction Co. (Stamford, CT) and no yard-period overhaul, repair, or decommissioning record placing it at Long Beach or Norfolk (or any other specific Navy yard) was located. Provided as background on Navy-wide asbestos practice in this hull's era, not as evidence of exposure aboard this ship.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1220-pc1220-04
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[6]CourtListener API v4 (via project helper script cl-auth-search.py) - request blocked, daily quota exhausted [court_record]
- Locator
- cl-auth-search.py stderr, 2026-10-03: 'DAILY QUOTA EXHAUSTED: server asked to wait 8198s (~2.3h)'
- Finding type
- litigation_documented
- Finding
- Litigation search for this hull is incomplete. General web search (not restricted to official sources) for "PC-1220" combined with asbestos/litigation/lawsuit terms returned no ship-specific hits - only unrelated Navy asbestos litigation involving other vessels, and law-firm marketing pages (excluded as sources per project rules). CourtListener - the required authoritative docket/opinion search tool for this project - could not be queried: the authenticated helper script reported the fleet-wide daily request quota exhausted, with an approximately 2.3-hour reset window reported mid-session.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Population
- Unknown - search not completed
- Limitations
- This is an open research gap, not a negative finding - CourtListener (the project's authoritative litigation-search source) has not actually been queried for 'PC-1220', 'USS PC-1220', or variant forms this session. The absence of hits in general web search does not establish the absence of qualifying litigation, since law-firm sites and docket aggregators are excluded as sources and CourtListener itself was unreachable. Must be re-run before this hull's litigation status can be treated as resolved.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-1220-pc1220-05