Evidence
7 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-7).
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[1]Chief of Naval Operations, Op-23-S-jk, Ser. 95223, Ocean-Going Tugs and Harbor Tugs—Recommendations for reclassification of, 13 April 1944; Secretary of the Navy approval, Enclosure A; NARA RG 181 copy transcribed by Researcher@Large [other_primary]
- Locator
- Enclosure A, p. 12, YT-383 / YTB-383; first endorsement approving reclassification
- Finding type
- vessel_history
- Finding
- A Secretary of the Navy-approved 1944 tug reclassification list maps YT-383 to YTB-383, retaining hull number 383. The entry is unnamed in that contemporary list.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1944
- Limitations
- Contemporary Navy document, but accessed as an outside transcription; the line gives number, not the name Cochali. It establishes the designation mapping, not delivery, commissioning, service entry, builder, machinery, or asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-cochali-yt383-01
-
[2]Naval History and Heritage Command, Thresher II (SSN-593), DANFS [nhhc_danfs]
- Locator
- 17 June–2 July 1962, Key West operations paragraphs
- Finding type
- vessel_history
- Finding
- NHHC's Thresher history identifies Cochali (YTB-383) assisting Thresher out of Key West on 17 June 1962. It records Cochali repeatedly handling pilots and assisting Thresher into and out of Key West in June and early July 1962.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1962-06 to 1962-07
- Limitations
- Documents work alongside another vessel at Key West. The 17 June YTB label conflicts with secondary summaries that date YTM reclassification to February 1962; it does not establish the effective YTM date. No material, maintenance, crew, or asbestos information about Cochali appears in these passages.
- Atlas source
- true
- Evidence ID
- ev-uss-cochali-yt383-02
-
[3]Naval History and Heritage Command, photograph NH 103398, USS Basilone [nhhc_danfs]
- Locator
- NH 103398 caption
- Finding type
- vessel_history
- Finding
- An official Navy photograph caption identifies Cochali (YTM-383) assisting USS Basilone at Newport, Rhode Island, on 6 February 1973.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1973-02-06
- Limitations
- Confirms the YTM designation and Newport activity by 1973. The photograph does not establish when reclassification occurred. Basilone's preceding boiler casualty is not a Cochali machinery event, asbestos finding, or exposure event.
- Atlas source
- true
- Evidence ID
- ev-uss-cochali-yt383-03
-
[4]U.S. Naval Institute Proceedings, 'Ships' Status Changes,' May 1987, reproducing Naval Vessel Register/Ship's Data Book changes through 1986 [other_primary]
- Locator
- Stricken from the Naval Vessel Register table, 15 May 1986, Cochali; disposition table, ex-YTB-383
- Finding type
- vessel_history
- Finding
- A contemporary Naval Vessel Register status digest lists Cochali (YTM-383) stricken on 15 May 1986 with the proposed disposition 'to be disposed of by sale.' Its disposition line also identifies the hull as ex-YTB-383.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1986-05-15
- Limitations
- A contemporaneous reproduction of NVR status changes, not a sale receipt. The stated future sale does not prove that a sale occurred, its date, purchaser, or the hull's present condition or location. No asbestos information is supplied.
- Atlas source
- true
- Evidence ID
- ev-uss-cochali-yt383-04
-
[5]Occupational Safety and Health Administration, Occupational Exposure to Asbestos, final rule, 59 FR 40964 (10 August 1994), shipyard-industry discussion [federal_register]
- Locator
- Shipbuilding and repairing discussion, paragraph beginning 'Asbestos products were used extensively on American ships'
- Finding type
- historical_record
- Finding
- OSHA's 1994 asbestos rulemaking states that asbestos products were used extensively on American ships from the early 1940s through the late 1970s, including bulkhead systems and thermal insulation. This is general period context for a Navy craft identified in 1944 records, not evidence about Cochali's materials.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-24
- Study period
- Early 1940s–late 1970s (rule issued 1994)
- Population
- American shipyard workers, generally
- Limitations
- Period-wide statement, without Cochali, this tug class, the builder, or a product list for the hull. It cannot establish that Cochali contained asbestos, any product, amount, location, exposure, or causation; steam-system examples in the rule must not be projected onto this tug.
- Atlas source
- true
- Evidence ID
- ev-uss-cochali-yt383-05
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[6]Batch 9365 search ledger: NHHC DANFS and photo catalog, NARA asbestos research guide and ship-plan guide, NAVSEA asbestos reading room, NOAA platform table, OSHA rulemaking, GAO HRD-80-2, and attempted authenticated CourtListener sweep [other_primary]
- Locator
- search_ledger rows sl-uss-cochali-yt383-01 through sl-uss-cochali-yt383-08
- Finding type
- historical_record
- Finding
- No ship-specific asbestos survey, product record, abatement record, or qualifying litigation record for Cochali was located in the public official-source searches completed for this batch. CourtListener searches remained pending after its authenticated fleet pacer denied a request, so the litigation negative is provisional.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 2026-09-24
- Limitations
- A limited search result, not proof that asbestos was absent or that litigation does not exist. CourtListener returned no search response because the fleet pacer was temporarily spent; its name and hull queries must be completed. No personal exposure or medical inference follows.
- Atlas source
- true
- Evidence ID
- ev-uss-cochali-yt383-06
-
[7]National Archives, Researching Asbestos aboard US Naval Vessel up through 1961 [other_primary]
- Locator
- Beginning Research; General Information Books; Cartographic Branch, RG 19-Hull S39 and S48
- Finding type
- historical_record
- Finding
- NARA identifies RG 19 Bureau of Ships correspondence, General Information Books, and 19-Hull ship-engineering drawings—including S39 insulation and lagging and S48 piping—as research routes for vessel-specific asbestos documentation. A search or request keyed to YT/YTB/YTM-383 is the next archival step.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-24
- Study period
- 1940s–1960s records
- Limitations
- Repository routing only. No Cochali file, drawing, or material specification was retrieved or confirmed to exist. This source supplies no asbestos finding for the hull.
- Atlas source
- true
- Evidence ID
- ev-uss-cochali-yt383-07