Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
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[1]research packet 1073-packet.md (11 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-yms-54-yms54-pkt-1073-packet-md
-
[2]NavSource Online, Auxiliary Minesweeper Photo Archive, YMS-54 (live page verified 2026-10-05) [other_primary]
- Locator
- YMS-54 page: service timeline and specifications block
- Finding type
- vessel_history
- Finding
- NavSource identifies YMS-54 as a YMS-1-class auxiliary motor minesweeper; reports that Gibbs Gas Engine Co. of Jacksonville, Florida laid the hull down on 20 May 1941, launched it on 1 November 1941, and completed it on 9 February 1942. The page reports that the hull was struck from the Naval Register on 19 June 1946, transferred to State Department Foreign Liquidation in December 1947, and has an unknown fate. Its specifications list 270 tons displacement, 136 feet length, 24 feet 6 inches beam, 6 feet 1 inch draft, 13 knots, complement 33, one 3-inch/50 dual-purpose mount, two 20mm mounts, two depth-charge tracks and two projectors, and two 880-bhp General Motors 8-268A diesel engines with Snow and Knobstedt single-reduction gear on two shafts.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1941-1947
- Population
- Gibbs Gas Engine Co. construction workers; U.S. Navy crew; Foreign Liquidation personnel
- Limitations
- NavSource is a volunteer photo-archive compilation rather than a Navy registry or archival finding aid. It reports identity, milestones, and specifications but does not document asbestos, material condition, individual exposure, or legal eligibility; the reported completion date is not independently adopted as a commissioning date.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-54-yms54-01
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[3]National Archives, Special List #44, by Ship Numbers [other_primary]
- Locator
- PDF page 121: YMS-54 entries 2/14/1942-9/30/1942 and 1/1/1943-6/30/1945
- Finding type
- historical_record
- Finding
- NARA Special List #44 lists two YMS-54 deck-log holdings: 14 February 1942 through 30 September 1942, and 1 January 1943 through 30 June 1945.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 1942-02-14 to 1945-06-30
- Population
- YMS-54 crew and activities represented in the indexed deck logs
- Limitations
- This is an archival inventory of deck-log coverage, not the deck-log text. The dates establish log coverage only and are not asserted as commissioning or decommissioning dates. The logs were not retrieved or read for asbestos, insulation, operations, or individual exposure information.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-54-yms54-02
-
[4]U.S. Government Accountability Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (18 October 1979) [gao]
- Locator
- Official product-page summary, asbestos-use and removal-policy paragraphs
- Finding type
- gov_survey
- Finding
- GAO reported that its review examined Navy ship asbestos use, removal costs, and worker-protection efforts at Long Beach and Norfolk Naval Shipyards. The official summary states that the Navy's 1975 policy removed and replaced nonasbestos material only when damaged or removed for necessary repairs, and that the policy was modified in 1979 to include selective replacement in high-maintenance areas.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-05
- Study period
- 1975-1979 policy review
- Population
- Navy ships, shipyard workers, and Navy asbestos-protection programs
- Limitations
- Navy program and shipyard context only. It does not establish that asbestos was aboard YMS-54, identify a product or location, quantify material, establish removal from this hull, or establish exposure or legal eligibility. The full report was not retrieved because the product page's linked full-text access was not used for this record.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-54-yms54-03
-
[5]National Archives, Researching Asbestos aboard US Naval Vessel up through 1961 [other_primary]
- Locator
- Guide introduction and RG 19 correspondence/specification-series listings
- Finding type
- regulatory
- Finding
- NARA's official research guide identifies Record Group 19, Records of the Bureau of Ships, including correspondence and ship-machinery specification series, as the archival pathway for researching asbestos aboard U.S. Navy vessels through 1961.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-10-05
- Study period
- 1941-1961
- Population
- Navy vessel construction, maintenance, and material records
- Limitations
- This is a research pathway, not a YMS-54 material record. The guide does not establish asbestos aboard this hull, and the identified RG 19 records were not examined in this batch.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-54-yms54-04
-
[6]Batch-9134 source review: NavSource YMS-54 page; NARA Special List #44; NARA asbestos research guide; GAO HRD-80-2; CourtListener sweep ledger [other_primary]
- Locator
- search_ledger rows sl-uss-yms-54-yms54-01 through sl-uss-yms-54-yms54-08
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record was located in the public sources reviewed: no YMS-54 asbestos survey, abatement contract, hazmat disclosure, material schedule, product identification, or adjudicated exposure finding naming this hull was found. The public sources establish identity, specifications, and deck-log coverage, but do not establish asbestos aboard the vessel.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-05
- Study period
- 2026-10-05 research cutoff
- Limitations
- A negative public-source search does not prove asbestos was absent. RG 19 specifications and correspondence, the underlying deck logs, and any shipyard or disposal files remain open archival leads. CourtListener work was stopped by the authenticated fleet pacing limiter before the four-query sweep could be completed; this row does not assert that no qualifying litigation exists.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-54-yms54-05