Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
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[1]research packet 907-packet.md (5 sources cited) [museum_official]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-oberlin-pc560-pkt-907-packet-md
-
[2]NavSource Online, Submarine Chaser Photo Archive, Oberlin (PC 560), ex-PC-560 [other_primary]
- Locator
- NavSource history bullets, lines 16-24 of the live page
- Finding type
- vessel_history
- Finding
- The live hull page identifies PC-560 as a PC-461-class submarine chaser laid down 25 November 1941 at Jeffersonville Boat and Machine Co., Jeffersonville, Indiana; launched 17 November 1942; commissioned as USS PC-560 on 17 June 1943 at New Orleans; assigned to the Asiatic-Pacific theater during World War II; placed in service as a Naval Reserve Training vessel in December 1945 with the 8th Naval District; decommissioned 28 January 1947 at Green Cove Springs, Florida; named Oberlin 1 February 1956; and struck from the Navy Register 5 September 1957 and sold for scrap.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1941-1957
- Population
- Jeffersonville construction workers; PC-560 crew and reserve trainees, 1943-1947
- Limitations
- Ship-specific history and disposition only; the page does not document asbestos, material composition, exposure, or an ultimate scrapping date. NavSource is a naval-history archive rather than the Navy's current registry; the NHHC DANFS link shown on the page was not live at research time.
- Atlas source
- true
- Evidence ID
- ev-uss-oberlin-pc560-01
-
[3]NavSource Online, Oberlin (PC 560), specifications block [other_primary]
- Locator
- NavSource specifications block, lines 25-34 of the live page
- Finding type
- vessel_history
- Finding
- The page gives this hull's specifications as 295 tons light displacement and 450 tons full load; 173 feet 8 inches length; 23 feet beam; 10 feet 10 inches draft; 20.2 knots; complement 65; one 3-inch/50 dual-purpose mount, one 40-mm mount, three 20-mm guns, two rocket launchers, four depth-charge projectors, and two depth-charge tracks; and two 1,440-bhp General Motors 16-258S diesel engines (serial numbers 6339 and 7788), Farrel-Birmingham single-reduction gear, and two shafts.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1947
- Population
- PC-560 crew and maintenance personnel
- Limitations
- The specifications establish a diesel propulsion plant and not a steam boiler/turbine plant; they do not establish asbestos content or quantities. Armament and engineering details are carried as the NavSource page states them, without extrapolating from sister hulls.
- Atlas source
- true
- Evidence ID
- ev-uss-oberlin-pc560-02
-
[4]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (18 October 1979) [gao]
- Locator
- GAO HRD-80-2 PDF, cover letter and 'Navy's Policy on Use of Asbestos' section
- Finding type
- gov_survey
- Finding
- GAO reported, based on Navy information, that ships contained asbestos in some components such as clutches and electric cables, that asbestos had been the Navy's major thermal-insulation material, and that the Navy's October 1975 policy revised specifications to eliminate asbestos as an acceptable thermal-insulation material. The report concerns Navy ship asbestos use and shipyard controls generally, not PC-560 specifically.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1975-1979 report context
- Population
- Navy ships and shipyard workers, program context
- Limitations
- Program-level evidence only. It does not identify asbestos aboard PC-560, a PC-461-class vessel, or any particular component of this hull; it cannot support a ship-specific exposure or quantity claim.
- Atlas source
- true
- Evidence ID
- ev-uss-oberlin-pc560-03
-
[5]NavSource PC-560 class and propulsion specifications, read with GAO HRD-80-2 Navy asbestos-use context [other_primary]
- Locator
- NavSource PC-560 class/propulsion blocks; GAO HRD-80-2 PDF context
- Finding type
- asbestos_application
- Finding
- Era inference only: a steel PC-461-class diesel submarine chaser built during World War II falls within the Navy period documented by GAO for extensive asbestos use. The relevant possible applications for a small diesel combatant are thermal and machinery insulation, diesel/exhaust lagging, gaskets, valve packing, electrical insulation, and deck coverings; because PC-560 had diesel propulsion rather than boilers and steam turbines, boiler/turbine lagging is not inferred.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1979 context
- Population
- 1941-1947 construction, crew, and maintenance populations
- Limitations
- This is class/era context, not a finding about PC-560's installed materials. No ship plan, material specification, survey, abatement record, quantity, manufacturer, or remaining ACM was located. The row must not be read as proof that any listed product was aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-oberlin-pc560-04
-
[6]CourtListener authenticated API v4 search ledger for exact-name and hull-number opinion/docket queries [court_record]
- Locator
- search_ledger rows sl-uss-oberlin-pc560-01 through -04
- Finding type
- litigation_documented
- Finding
- No qualifying asbestos-litigation finding is carried for USS Oberlin (PC-560) in this batch. The required four base queries were attempted through the authenticated helper, but the fleet-wide pacing gate repeatedly required a stand-down before returning result pages; no result is therefore asserted from the incomplete CourtListener sweep.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03 research session
- Limitations
- This is an access gap, not a zero-result finding. The helper reported the shared fleet pacing budget as momentarily spent; no anonymous, raw, or v3 request was used. Because the base result pages were not returned, asbestos-qualified variants were not run and no litigation-stage classification is made.
- Atlas source
- true
- Evidence ID
- ev-uss-oberlin-pc560-05