Evidence
5 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-5).
-
[1]U.S. Navy Bureau of Ships, Naval Vessel Register, 1 January 1949, NAVSHIPS 4097A [other_primary]
- Locator
- printed p. 236, PDF p. 237, YTB-703 row
- Finding type
- vessel_history
- Finding
- The Bureau of Ships' 1 January 1949 Naval Vessel Register lists CANARSEE, YTB-703, among service craft. Its vessel status is ACT with status code 1; the original-construction completion year shown is 1946.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- This is a status snapshot, not a commissioning record or service chronology. It contains no asbestos, machinery-material, crew, or later-disposition finding. The register labels this hull as service craft and does not establish use of the USS prefix.
- Atlas source
- true
- Evidence ID
- ev-uss-canarsee-ytb703-01
-
[2]National Archives, Ship Plan Index, CANARSEE / YTB-703 entry [other_primary]
- Locator
- CANARSEE row; RG 19, Microfilm, 175668570
- Finding type
- historical_record
- Finding
- The National Archives Ship Plan Index identifies CANARSEE, YTB-703, in Record Group 19 microfilm of ship engineering drawings, catalog identifier 175668570.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- An index entry establishes that drawings are cataloged, not what the drawings depict. The microfilm was not inspected; it cannot support any ship-specific material or asbestos finding yet.
- Atlas source
- true
- Evidence ID
- ev-uss-canarsee-ytb703-02
-
[3]National Archives, Researching Asbestos aboard US Naval Vessel up through 1961 [other_primary]
- Locator
- Cartographic Branch, Ship Engineering Drawings section
- Finding type
- historical_record
- Finding
- The National Archives identifies RG 19 ship engineering drawings, especially S39 insulation and lagging and S48 piping, as possible primary records for investigating asbestos on an individual Navy vessel.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-24
- Limitations
- Research guidance only. It neither confirms that S39 or S48 drawings survive for YTB-703 nor establishes that the tug contained asbestos.
- Atlas source
- true
- Evidence ID
- ev-uss-canarsee-ytb703-03
-
[4]U.S. Government Accountability Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (1979) [gao]
- Locator
- Highlights, Navy policy paragraphs
- Finding type
- historical_record
- Finding
- GAO's 1979 review describes Navy policy from 1975 to replace asbestos insulation on ships when damaged or when necessary for repairs, and a 1979 policy expansion for high-maintenance areas.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-24
- Limitations
- Navy-wide policy context, based on work at Long Beach and Norfolk shipyards. The report does not name YTB-703, does not show that she was in service in 1975 or 1979, and does not document asbestos, repair, or exposure aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-canarsee-ytb703-04
-
[5]Batch 9457 search ledger and source review [other_primary]
- Locator
- search_ledger sl-uss-canarsee-ytb703-01 through -06
- Finding type
- historical_record
- Finding
- No ship-specific asbestos survey, abatement record, material specification, or qualifying asbestos litigation for YTB-703 was located in the public sources reviewed in the search ledger; the CourtListener sweep remains incomplete because its authenticated fleet pacing budget was temporarily exhausted.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- This is a bounded search result, not proof that asbestos was absent. Archival drawings have not been inspected, and CourtListener results cannot be classified until authenticated queries complete. No individual exposure, causation, or legal eligibility is established.
- Atlas source
- true
- Evidence ID
- ev-uss-canarsee-ytb703-05