Evidence
5 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-5).
-
[1]NavSource Online, Amphibious Photo Archive, USS LSM-499 hull page [other_primary]
- Locator
- History block and commanding-officer table
- Finding type
- vessel_history
- Finding
- NavSource's hull history identifies USS LSM-499 as an LSM-1-class Landing Ship, Medium laid down 17 March 1945 at Brown Shipbuilding Co., Houston, launched 7 April 1945, commissioned 14 May 1945 under Lt. Arland C. Shea, assigned to the Asiatic-Pacific Theater in LSM Flotilla Sixteen, LSM Group Forty-Seven, LSM Division Ninety-Five, and assigned to Far East occupation service from 16 September to 10 November 1945. It records decommissioning at Green Cove Springs on 1 August 1946 and layup in the Atlantic Reserve Fleet.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1945-1946
- Population
- Brown Shipbuilding construction workers; U.S. Navy crew; occupation-service crew
- Limitations
- NavSource is a volunteer secondary compilation whose history extract is credited to Turner Publishing's LSM-LSMR Amphibious Forces, Vol. II; it is not a Navy registry or DANFS entry. It contains no asbestos information and does not establish exposure or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-499-lsm499-01
-
[2]Naval Sea Systems Command, Ship History, 28 June 2011 [other_primary]
- Locator
- Table row 'Hull ID LSM 0499'
- Finding type
- historical_record
- Finding
- The official NAVSEA inactive-ship history table lists Hull ID LSM 0499 with removal date 7 February 1958 and final disposition UNK.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1958
- Limitations
- Official Navy disposition table establishes removal and records final disposition as unknown; it does not identify asbestos, conversion work, scrapping, or exposure conditions.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-499-lsm499-02
-
[3]NavSource Online, USS LSM-499 specifications block [other_primary]
- Locator
- Specifications block: complement, propulsion, displacement, dimensions
- Finding type
- historical_record
- Finding
- The NavSource LSM-499 page gives the LSM-1-class specifications as 5 officers and 54 enlisted; diesel propulsion consisting of two General Motors 16-278A engines rated 1,440 BHP each, direct drive, twin propellers, 2,800 shp; and diesel ship's-service generators. It also lists 520 tons light, 743 tons landing, 1,095 tons full load, 203 feet 6 inches length, and 34 feet 6 inches beam.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1945
- Population
- LSM-1-class crews and maintenance personnel
- Limitations
- The page presents class specifications alongside hull history; the source does not provide a hull-specific engineering plan. The diesel specifications do not establish asbestos content in any component.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-499-lsm499-03
-
[4]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 [gao]
- Locator
- Live product-page Highlights section describing asbestos use in Navy ships and removal policy
- Finding type
- asbestos_application
- Finding
- WWII U.S. shipbuilding-era documentation supports a class/era inference that asbestos was used extensively for fireproofing and insulation in wartime ship construction. For a diesel landing ship, possible applications include machinery or exhaust insulation, piping gaskets and packing, electrical insulation, and deck-machinery brake linings; the absence of a steam plant means boiler and steam-turbine lagging is not inferred here.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-02
- Study period
- 1940s-1979
- Population
- WWII-era Navy shipbuilding workforce and Navy-ship maintenance programs
- Limitations
- Program-level evidence, not a record for LSM-499, Brown Shipbuilding, or this class's outfitting. It does not establish that asbestos was installed aboard this hull, its quantity, condition, present-day presence, individual exposure, or causation. Full report text was not retrieved because the PDF endpoint was access-blocked.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-499-lsm499-04
-
[5]Batch-6315 source and litigation search ledger [other_primary]
- Locator
- search_ledger rows sl-uss-lsm-499-lsm499-01 through sl-uss-lsm-499-lsm499-09
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record was located in the official Navy sources reviewed, the live hull-history page, or the public research sweep: no asbestos survey, material list, abatement contract, hazmat disclosure, or qualifying litigation record naming USS LSM-499 was found. This is a negative research finding, not proof that asbestos was absent.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 2026-10-02
- Limitations
- The negative result is limited by Firecrawl quota exhaustion, incomplete CourtListener variants after fleet pacing stopped the helper, and the absence of non-digitized Navy construction/outfitting files. It does not establish presence or absence of asbestos, defeat exposure allegations, or determine legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-499-lsm499-05