Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
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[1]research packet ho-packet.md (4 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED — real identity: USS Mahan; hull: DDG-42 (ex-DLG-11); type: Farragut-class guided
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-mahan-ddg42-pkt-ho-packet-md
-
[2]Chesher v. 3M Co., 234 F. Supp. 3d 693 (D.S.C. 2017), No. 3:15-cv-02123-DCN; CourtListener opinion 7324150 [court_record]
- Locator
- Opinion at *694-695 and footnote 1 (Crane Answers to Interrogs. 20-21); background recital (valve packing/gaskets, de-aerating feed tanks)
- Finding type
- litigation_product_id
- Finding
- Published federal opinion in a Navy asbestos case names this hull in the defendant's own admissions: plaintiff James Wilson Chesher, a machinist mate and later commissioned officer (USN 1965-1989), alleged career asbestos exposure causing mesothelioma; defendant Crane Co. admitted in interrogatory answers that it 'supplied valves to the USS Cadmus, USS Fox, USS Mahan, and USS Pratt,' and separately admitted enclosing asbestos-containing gaskets, packing, or discs inside certain of its valves; Navy-approved Crane valve design drawings specifying asbestos components are in the record (for USS Henderson, USS Fox, USS Kraus). The court DENIED Crane's summary-judgment motion, finding a genuine issue of fact that Crane valves were used on all ships Chesher served on. During Chesher's 1965-1989 service the only commissioned USS Mahan was DLG-11/DDG-42.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1965-1989 (alleged exposure window); 2017 (opinion)
- Population
- USN machinist mate/commissioned officer, 1965-1989; mesothelioma
- Limitations
- Summary-judgment-stage ruling: the denial establishes a triable issue, not an adjudicated finding that Chesher was exposed aboard this hull or that the specific Crane valves aboard contained asbestos. Crane's valve-supply admission is a party admission in discovery; the asbestos content of valves aboard Mahan specifically is inferential. Chesher's dates aboard Mahan are not stated in the published opinion. Does not quantify asbestos, establish causation, or address legal eligibility; post-2017 merits outcome not located.
- Atlas source
- true
- Evidence ID
- ev-uss-mahan-ddg42-01
-
[3]Naval Vessel Register, MAHAN (DDG 42), ex-DLG 11, UIC 52236, class DDG 37 (NAVSEA official inventory; live page renders nav frame only - Wayback capture 2017-01-13 used) [other_primary]
- Locator
- NVR ship detail page, milestone dates and status blocks
- Finding type
- vessel_history
- Finding
- Official NVR lifecycle record: award 1955-11-18; keel laid 1957-07-31; launch 1959-10-07; commission 1960-08-25; delivery 1960-12-31; decommission 1993-06-15; stricken 1993-06-15; status 'Disposed of by scrapping, dismantling' with status-changed date 2004-05-18; builder 'Naval Shipyard San Francisco Bay'; 33.0 years commission-to-decommission.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1955-2004
- Limitations
- NVR confirms official milestone dates and disposal status/category but does not identify the dismantling contractor or site, does not document materials removed during scrapping, and says nothing about asbestos. Disposal-chain detail (1995 sale, 1996 repossession, Baltimore Marine Industries at Sparrows Point 2003, Metro Machine completion 2004) is corroborated by NavSource/seaforces secondary references, not by the NVR record itself.
- Atlas source
- true
- Evidence ID
- ev-uss-mahan-ddg42-02
-
[4]DANFS, Mahan III (DLG-11) - verbatim transcription at losthistory.net/hazegray/danfs/dl-dlg/dlg11.htm (live NHHC page 404) + official USS Mahan (DDG-72) ship history page reproducing the DANFS text and post-1969 continuation, mahan.navy.mil (Wayback 2005-02-04) [nhhc_danfs]
- Locator
- DANFS entry specifications block + service narrative; mahan.navy.mil History.htm (DLG-11 and DDG-42 sections)
- Finding type
- vessel_history
- Finding
- DANFS/NHHC-derived service record for this hull: laid down 1957-07-31 by San Francisco Naval Shipyard; launched 1959-10-07; sponsored by Mrs. H. P. Smith; commissioned 1960-08-25, Comdr. Wm. S. Busik. Pacific Fleet Cruiser-Destroyer Force, San Diego; WestPac/Vietnam deployments 1962-1969. Documented yard periods: Long Beach Naval Shipyard overhaul (1963); 5.5-month overhaul 1965-05-01 to 1965-10-20 (yard unnamed); Long Beach Naval Shipyard overhaul 1967-11-01 to late April 1968; extended overhaul at Bath Iron Works, ME from 1973 with recommissioning at Bath 1975-04-01; joined DESRON 4, homeport Charleston SC; redesignated DLG-11 to DDG-42 in the Navy-wide reclassification; regular overhaul Philadelphia 1980-04 to 1981-05; Terrier New Threat Upgrade test ship 1981-10 to 1985-03; Multinational Peacekeeping Force off Beirut 1983; 10-month regular overhaul 1986-09 to 1987-08 (yard unnamed); Desert Storm deployment 1991-09-26 to 1992-04-02; decommissioned 1993-06-15 at Naval Station Charleston.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-28
- Study period
- 1957-1993
- Population
- Hunter's Point construction trades 1957-60; yard workers at Long Beach, Bath, Philadelphia overhauls; crew (design complement 377)
- Limitations
- Documents service history and yard periods, not materials or asbestos content. Post-1969 narrative is from the official DDG-72 ship-site history rather than the formal DANFS entry; the ship-site text reads 'July 1 1975' for the DDG-42 redesignation while NVR-era records give 30 June 1975 (carried as 30 June). The hazegray DANFS transcription contains OCR artifacts (launch year '1969,' length '612'); commissioning 1960-08-25 corroborated by NVR. 1965 and 1986-87 overhaul sites are unnamed in the official history.
- Atlas source
- true
- Evidence ID
- ev-uss-mahan-ddg42-03
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[5]DANFS specifications block (Farragut/Coontz class; 4-boiler steam plant; cpl. 377) + Atlas shipyard dataset records for Hunter's Point NSY (tier 3: thermal insulation for piping/boilers, turbine/pump mechanical insulation, gaskets, hull/bulkhead fireproofing documented), Long Beach NSY (1979 chest-survey: 16.0% asbestos-related radiographic abnormalities, PMID 294186), Philadelphia NSY (tier 3, named-product documentation), Bath Iron Works (tier 2, OSHA 1987 citations) [other_primary]
- Locator
- DANFS specifications block; shipyards.json records hunters-point-naval-shipyard, long-beach-naval-shipyard, philadelphia-naval-shipyard, bath-iron-works
- Finding type
- asbestos_application
- Finding
- Era/yard inference: a Farragut-class steam-propelled escort built 1957-60 at a Navy shipyard with yard-level documented asbestos product use (Hunter's Point: piping/boiler thermal insulation, turbine/pump mechanical insulation, gaskets, hull and bulkhead fireproofing) would have carried period-standard asbestos insulation, steam-line lagging, valve packing and gaskets, and fireproofing. Documented overhaul periods at Long Beach (1963, 1967-68), Bath Iron Works (1973-75, including ~20 months in decommissioned status), and Philadelphia (1980-81), plus further overhauls in 1965 and 1986-87, are the events during which such materials would typically have been disturbed or replaced.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-28
- Study period
- 1957-1993
- Population
- Hunter's Point construction trades 1957-60; overhaul yard workers 1963-1987; crew
- Limitations
- Class/era and builder-yard inference only - not a ship-specific finding. The ship-specific findings for this hull are ev-01 (Chesher) and ev-02/03 (documented lifecycle). Yard records describe the yards, not this hull; no hull-level insulation survey located. Does not establish presence, quantity, location, or what remained aboard at disposal.
- Atlas source
- true
- Evidence ID
- ev-uss-mahan-ddg42-04
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[6]Metro Machine Corp. (Harry Lewis) statement to USS Preble (DDG-46) veterans' site describing NAVSEA-monitored dismantling of that Farragut-class sister at Philadelphia Naval Business Center Drydock 2 (Wayback capture 2016-10-31) [other_primary]
- Locator
- usspreble.org/location.html, quoted Metro Machine correspondence (circa 2002-03)
- Finding type
- abatement_record
- Finding
- The dismantling contractor for this hull's scrapping (Metro Machine Corp., Philadelphia, contract September 2003, completion 2004-05-18 per secondary records) described its NAVSEA-monitored dismantling of Farragut-class sister USS Preble (DDG-46) at the same yard: 'Every piece of the ship has its own waste stream; e.g., PCB paint chips, asbestos insulation, PCB lubricants, fiberglass insulation, bilgewater, rubber gaskets... and it's all monitored by the Navy and regulatory agencies such as OSHA and EPA.' Documents asbestos insulation as a dismantling waste stream for a same-class hull handled by the same contractor at the same site in the same period.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- class_or_era
- Accessed
- 2026-09-28
- Study period
- 2002-2004
- Population
- Dismantling workers, Metro Machine Corp., Philadelphia, 2002-2004
- Limitations
- Statement concerns USS Preble, not Mahan - class/era corroboration only, quoted on a veterans' association page (primary-source statement, secondary hosting). Mahan's own dismantling waste-stream records, if any exist, would sit with NAVSEA/Metro Machine/EPA files - archival lead not yet pursued. Does not establish what ACM remained aboard Mahan or how it was handled.
- Atlas source
- true
- Evidence ID
- ev-uss-mahan-ddg42-05
-
[7]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (full text blocked, HTTP 403)
- Finding type
- gov_survey
- Finding
- GAO documented the Navy's asbestos-protection program and its 1975/1979 insulation-removal policies, with fieldwork at Long Beach and Norfolk Naval Shipyards - Long Beach being the yard that performed Mahan's 1963 and 1967-68 overhauls - and program context for her 1980-81 Philadelphia overhaul.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-28
- Study period
- 1979
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Yard/program-level documentation, not hull-specific; supports era context for overhaul-period insulation handling, not quantities or events aboard this hull. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403) - content via product-page description, consistent with Batch 01 treatment.
- Atlas source
- true
- Evidence ID
- ev-uss-mahan-ddg42-06
-
[8]CourtListener API v4 sweeps, exact name and hull number, opinion and docket indexes [court_record]
- Locator
- CourtListener API v4 search results (type=o and type=r), 2026-09-28
- Finding type
- litigation_documented
- Finding
- CourtListener sweep (authenticated API v4, 2026-09-28): '"USS Mahan" asbestos' (type=o) = 1 hit, Chesher v. 3M Co. (qualifying; ev-01); '"Mahan" mesothelioma' = 1 hit (same case); '"Mahan" asbestos ship' = 5 hits, only Chesher qualifying (others: insurance bad-faith, nuclear contract, tax/fuel-airburst, tobacco); '"DDG-42"' = 0 hits; '"USS Mahan"' docket index = 4 results: Chesher v. Crane Co. (qualifying - same case), Johnson v. 3M Co. 2:22-cv-00563 (AFFF/PFAS MDL member case, NOT asbestos - name collision), United States v. QTC Medical Services (False Claims Act - collision), Does 1-7 v. The Taliban (collision). No qualifying asbestos litigation naming this hull was located beyond Chesher.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- context_only
- Accessed
- 2026-09-28
- Study period
- 2026-09-28
- Limitations
- Negative-result documentation: CourtListener indexes are not exhaustive of state-court or PACER-only filings; 'no further hits' means no further indexed qualifying record was located, not that none exists anywhere. Johnson v. 3M classified by its AFFF MDL association (2:18-mn-02873), not by vessel name.
- Atlas source
- true
- Evidence ID
- ev-uss-mahan-ddg42-07