Evidence
7 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-7).
-
[1]USS Constitution Museum, 'USS Constitution's Turnaround Cruises' (Margherita Desy, NHHC Detachment Boston, 2017) [museum_official]
- Locator
- Text immediately before and after the circa 1955 photo sequence; photographs credited to NHHC Detachment Boston
- Finding type
- vessel_history
- Finding
- The USS Constitution Museum identifies Navy tug Chegodega (YTB 542) by hull number in photographs of a circa 1955 turnaround cruise in which tugs moved Constitution away from Pier One, turned her in the Charles River, and returned her to the berth.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- circa 1955
- Limitations
- The date is approximate and the photographs document an operation, not crew identities, vessel materials, asbestos, or exposure. The account does not establish continuous service across the 1950s.
- Atlas source
- true
- Evidence ID
- ev-uss-chegodega-ytb542-01
-
[2]National Archives, USS Atka (AGB-3) deck log, February 1953 [other_primary]
- Locator
- PDF page 26, deck log remarks sheet dated Wednesday, 11 February 1953, 0400-1200 entries
- Finding type
- vessel_history
- Finding
- USS Atka's deck log for 11 February 1953 records USS YTB-542 assisting a berth shift at Boston Naval Shipyard, coming alongside the starboard bow, shifting to the port quarter, and casting off after Atka moored at Pier 4-West.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1953-02-11
- Limitations
- The log identifies the tug by hull number rather than name; the museum independently links YTB-542 to Chegodega. This is operational evidence only and contains no material, asbestos, or individual exposure information.
- Atlas source
- true
- Evidence ID
- ev-uss-chegodega-ytb542-02
-
[3]Naval History and Heritage Command, photograph K-109996, USS CHEGODEGA (YTM-542) [other_primary]
- Locator
- Catalog title, caption, and original date
- Finding type
- vessel_history
- Finding
- NHHC photograph K-109996 identifies USS Chegodega as YTM-542 and captions her off Yorktown, Virginia, on 29 July 1975.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1975-07-29
- Limitations
- The NHHC catalog text was available through indexed search results; the direct page returned a fetch error. The caption establishes the later designation and a dated location only, not the redesignation date, mission, materials, asbestos, or exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-chegodega-ytb542-03
-
[4]Naval Sea Systems Command, Ship History, 28 June 2011 [other_primary]
- Locator
- PDF printed page 105, YTM 0542 row
- Finding type
- vessel_history
- Finding
- NAVSEA's inactive ship history lists YTM 0542 CHEGODEGA with removal date 3 March 1987 and final disposition 'SCRAP SALE'.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1987-03-03
- Limitations
- The NAVSEA row was available through an indexed extract; direct PDF retrieval returned HTTP 403. 'Removal' and 'scrap sale' are the source's labels; they do not alone prove a decommissioning, sale closing, or physical scrapping date. The list has no asbestos information.
- Atlas source
- true
- Evidence ID
- ev-uss-chegodega-ytb542-04
-
[5]National Archives, Ship Plan Index, Chegodega row [other_primary]
- Locator
- CHEGODEGA | YTB-542 | 19 | Microfilm | 175668663
- Finding type
- historical_record
- Finding
- NARA's Ship Plan Index lists CHEGODEGA, YTB-542, in Record Group 19 microfilm under NAID 175668663.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Limitations
- The NARA index row was available through indexed text; the full page exceeded the browsing fetch limit. The index identifies a plan record but does not expose its contents or identify installed material or an asbestos condition.
- Atlas source
- true
- Evidence ID
- ev-uss-chegodega-ytb542-05
-
[6]Batch 9449 source search ledger in this record [other_primary]
- Locator
- search_ledger rows sl-uss-chegodega-ytb542-01 through sl-uss-chegodega-ytb542-07
- Finding type
- historical_record
- Finding
- No ship-specific asbestos survey, abatement, material schedule, or exposure record was located in the official and museum sources searched in this batch.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 2026-09-24
- Limitations
- A negative search result is bounded to the repositories and queries recorded here. It does not prove the tug lacked asbestos, that a person was or was not exposed, or that nondigitized Navy material records do not exist.
- Atlas source
- true
- Evidence ID
- ev-uss-chegodega-ytb542-06
-
[7]CourtListener authenticated v4 search responses, six queries via fleet helper, 24 September 2026 [court_record]
- Locator
- search_ledger rows sl-uss-chegodega-ytb542-08 through sl-uss-chegodega-ytb542-13
- Finding type
- litigation_documented
- Finding
- Authenticated CourtListener v4 opinion and RECAP docket searches for exact 'Chegodega', 'YTB-542', and 'YTM-542' each returned zero indexed results. No hit was available to classify as qualifying asbestos litigation, other litigation, or a name collision.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 2026-09-24
- Limitations
- This is a no-result finding for CourtListener's indexed opinions and RECAP dockets, not a judicial finding or proof that no suit, sealed case, state-court filing, or unindexed exposure claim exists. No litigation stage or exposure conclusion can be assigned without a case record.
- Atlas source
- true
- Evidence ID
- ev-uss-chegodega-ytb542-07