Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
-
[1]research packet 914-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-613-pc613-pkt-914-packet-md
-
[2]NavSource Naval History, Submarine Chaser Photo Archive, PC-613 hull page (live verified) [other_primary]
- Locator
- PC-613 hull page: class chronology paragraph, specifications block, photo caption table, 'no DANFS' note
- Finding type
- vessel_history
- Finding
- NavSource's PC-613 hull page identifies this vessel as a PC-461-class submarine chaser and gives the full milestone chronology: laid down 7 July 1942 by the Gibbs Gas Engine Co., Jacksonville, FL; launched 27 October 1942; commissioned USS PC-613 2 June 1943; decommissioned 28 March 1946; struck from the Navy Register 8 May 1946; transferred to the Maritime Commission 10 December 1947 at Claremont, VA; transferred to the Dominican Republic in December 1947 as 27 De Febrero (P 101); reclassified P-201; scrapped in 1958. Specifications on the same page: displacement 280 t (lt)/450 t (fl); length 173'8"; beam 23'; draft 10'10"; speed 20.2 kts; complement 65; armament one 3"/50 dual-purpose mount, one 40mm mount, three 20mm guns, two rocket launchers, four depth-charge projectors, two depth-charge tracks; propulsion two 2,880 bhp Hooven-Owen-Rentschler R-99DA diesel engines, Westinghouse single-reduction gear, two shafts. The page carries one photo of the hull as Dominican 27 De Febrero (P 101) and states 'There is no DANFS history available for PC-613.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1958 (or 1968 per conflicting fate source - see gaps)
- Population
- Gibbs Gas Engine construction workers (1942-43); U.S. Navy crew (1943-1946); Armada de Republica Dominicana crew (1947-discard)
- Limitations
- NavSource is a volunteer secondary compilation, not a Navy registry or material record - milestone dates generally track NVR/DANFS but are not themselves primary (commissioning corroborated independently by the NARA deck-log index, ev-02; builder/commissioning/disposition corroborated by the shipbuilding-history production list, ev-03). It contains no asbestos, crew-exposure, repair-scope, or material content, and its 'scrapped 1958' fate conflicts with navypedia's 'discarded 1968' (see gaps).
- Atlas source
- true
- Evidence ID
- ev-uss-pc-613-pc613-01
-
[3]National Archives and Records Administration, Special List 44, 'Logbooks of U.S. Navy Ships and Stations, 1941-1983,' by Ship Numbers: PC-613 [other_primary]
- Locator
- Special List 44 by-ship-number table, PC-613 row: '6/2/1943 - 7/1/1945'
- Finding type
- historical_record
- Finding
- NARA Special List 44, the National Archives guide to Navy deck logs, lists PC-613 with deck-log coverage beginning 6/2/1943 and ending 7/1/1945. The coverage start equals the commissioning date given by NavSource - an independent corroboration - and the listing is the archival lead for this hull's contemporaneous movement, availability, and repair documentation (the underlying logs were not retrieved).
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-06-02 to 1945-07-01
- Population
- U.S. Navy crew recorded in deck logs (1943-1945)
- Limitations
- The list establishes that deck-log coverage exists for this hull for the stated span, not what the logs contain; coverage ends 7/1/1945, nine months before decommissioning, so post-July-1945 events are not in this indexed span. No asbestos or material content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-613-pc613-02
-
[4]Shipbuilding History (shipbuildinghistory.com), 'Gibbs Gas Engine, Aerojet-General, Jacksonville Shipyards' yard table; cross-checked against the companion 'Sub Chasers PC SC PCE PCS WWII' small-ships table [other_primary]
- Locator
- Gibbs yard table, PC 613 row; yard-history header paragraph; smallships/pc2.html PC 613 row
- Finding type
- vessel_history
- Finding
- Shipbuilding History's Gibbs Gas Engine yard production list independently confirms this hull: 'PC 613 | US Navy | Sub Chaser | 463d | 173 | 2-Jun-43 | To the Dominican Republic 1947 as 27 de Febrero (P 101), scrapped 1958' - matching NavSource on builder, commissioning, transfer destination, name, and 1958 scrapping. The same yard reference records Gibbs Gas Engine Works as a prolific small-vessel builder founded 1911 that built in both World Wars, was renamed Gibbs Corporation after WWII, concentrated on repair until returning to steel shipbuilding in 1957, was sold to Aerojet-General in 1964, and passed through Jacksonville Shipyards and Fruehauf to Terex, which closed the yard in 1992.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1992 (yard history); 1942-1958 (hull row)
- Population
- Gibbs Gas Engine construction workers (1942-43)
- Limitations
- A reference compilation of official production data, not a primary registry; independently corroborates NavSource milestones but shares the same 'scrapped 1958' fate that conflicts with navypedia (see gaps). No asbestos or material content; the post-1964 successor-yard history is corporate context, not construction-era documentation for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-613-pc613-03
-
[5]HyperWar/ibiblio, 'Ships of the U.S. Navy, 1940-1945 - Submarine Chasers' (USN reference compilation) [other_primary]
- Locator
- PC-461 class specification block; hull table row 'PC-608-620' (covers PC-613)
- Finding type
- vessel_history
- Finding
- The HyperWar/ibiblio mirror of the U.S. Navy compilation 'Ships of the U.S. Navy, 1940-1945' lists this hull inside the PC-461-class table row 'PC-608-620' (commissioned 1942-44) with no notes - meaning no war loss, no lend-lease transfer, and no later name. The class specification block on the same page: displacement 284 tons; length 173'8"; beam 23'; draft 10'10"; speed 21 knots; armament 1 x 3"/50, 1 x 40mm, 5 x 20mm, 2 depth-charge throwers (mousetraps), 2 K-guns, 2 depth-charge racks; complement 65; diesel engines, 2 screws, 2,280 shaft hp.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1944
- Population
- PC-461-class construction trades and crews (class-level context)
- Limitations
- Confirms the hull's existence, class, and commission-era, and that it had no loss/name/transfer annotation in this compilation - but the row is a range row, not a hull-level entry, and class figures differ from NavSource's hull page (284 t vs 280/450 t; 21 kts vs 20.2; 2,280 shp vs 2,880 bhp; 5 vs 3 20mm) - carried in gaps. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-613-pc613-04
-
[6]Era inference built on: NavSource PC-613 specifications block (diesel plant); HyperWar/ibiblio PC-461 class spec; GAO HRD-80-2 (Navy asbestos-era policy, ev-06); shipbuilding-history Gibbs yard record [other_primary]
- Locator
- Synthesis of ev-01 through ev-04 and ev-06 - no single source names asbestos aboard this hull
- Finding type
- asbestos_application
- Finding
- Era/class inference only: a steel-hulled PC-461-class submarine chaser laid down July 1942 at a U.S. yard was built inside the federal asbestos-priority era for shipbuilding, when asbestos was standard in thermal insulation, machinery and exhaust lagging, gaskets, valve packing, electrical insulation, and deck/bulkhead coverings aboard small combatants. This hull was diesel-powered (two Hooven-Owen-Rentschler R-99DA diesels) - she carried no boiler or steam-turbine plant, so the boiler/turbine steam-lagging pathway that drives exposure on steam vessels does not apply here; the plausible-era applications are the diesel-era set above, concentrated in her small, confined engineering spaces.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1942-1958 (or 1968 per conflicting fate source - see gaps)
- Population
- Gibbs Gas Engine construction workers (1942-43); U.S. Navy crew (1943-46); Dominican crew (1947-discard); disposal workers
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, work package, or crew record located for PC-613. Names era-standard applications, not confirmed installed materials; no quantity; no manufacturer attribution; does not establish present-day or service-era presence aboard this specific hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-613-pc613-05
-
[7]GAO, 'Navy Efforts To Protect Workers From Asbestos Exposure,' HRD-80-2 (Oct 18, 1979; publicly released Oct 22, 1979) [gao]
- Locator
- GAO product page HRD-80-2 highlights block (direct curl fetch HTTP 403, confirmed 2026-10-03); full-text details (insulation-identification finding; pipe-hanger liners and gaskets) per report text extracted in a parallel fleet session on this worktree
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships, that its 1975 policy was to remove and replace with nonasbestos materials only insulation that was damaged or had to be removed to accomplish repairs, and that this was modified in 1979 to include selectively replacing asbestos insulation in high-maintenance areas - establishing that the Navy's asbestos-in-ships era covered this hull's entire 1942-43 construction and 1943-46 U.S. service. The report further notes that identifying thermal insulation required individual-ship or class records and describes asbestos use in applications such as pipe-hanger liners and gaskets.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1979 (report); review of the Navy asbestos-use era
- Population
- Navy shipyard workers (program review)
- Limitations
- Program-level documentation; fieldwork yards were Long Beach and Norfolk Naval Shipyards and no individual hull is named - supports era context only, not any fact specific to this hull. Direct fetch blocked (HTTP 403); product-page highlights verified this session, full-text details adopted from a parallel fleet session's extraction and not independently re-verified.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-613-pc613-06
-
[8]Batch-7988 search ledger (this record): NHHC DANFS index; NavSource live page; shipbuilding-history production list; HyperWar/ibiblio USN compilation; NARA Special List 44; GAO product page; NVR exclusion; MARAD/NARA-catalog access attempts; secondary web litigation sweep; CourtListener helper (partial - see sl-12) [other_primary]
- Locator
- search_ledger rows sl-uss-pc-613-pc613-01 through sl-uss-pc-613-pc613-12
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located for PC-613: no asbestos survey, abatement contract, hazmat disclosure, product record, or litigation naming this hull was found in the public sources searched (see search_ledger). Litigation sweep is PARTIAL: the exact-name opinion query ("USS PC-613") returned zero results in the CourtListener opinion index - executed under the authenticated helper by a parallel fleet session on this worktree - while the exact-name docket query and both hull-number queries remained blocked by fleet pacing and were not completed. Additionally, no DANFS entry exists for this hull (NavSource states it; the NHHC DANFS index carries no PC entries), the Naval Vessel Register does not cover vessels disposed before 1987, and the MARAD vessel-history database and NARA catalog API were unreachable this session - the baseline service record itself is thin, resting on NavSource, the shipbuilding-history production list, the USN compilation range row, and the NARA deck-log index entry.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - it establishes only that the public record is silent. The opinion-index zero result covers the exact-name query only; docket and hull-number queries are open gaps, not negative results (raw result artifact not retained by the parallel session - provenance noted in sl-12). Deck logs (SL44: 1943-06-02 to 1945-07-01), Gibbs/MC transfer paperwork, and Dominican disposal records are undigitized leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-613-pc613-07