USS LSM-249

Name
USS LSM-249
Hull designation
LSM-249
Vessel class
LSM-1
Evidence tier
Tier 2
Evidence entries
8
Record ID
uss-lsm-249-lsm249
Dataset version
2026.10.12-rc.1
Canonical URL
https://asbestosatlas.org/ships/uss-lsm-249-lsm249

Evidence

8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).

  1. [1]research packet uc-packet.md (2 sources cited) [other_primary]
    Finding type
    vessel_history
    Finding
    Identity packet verdict: VERIFIED
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Evidence ID
    uss-lsm-249-lsm249-pkt-uc-packet-md
  2. [2]NavSource Online, Amphibious Photo Archive, USS LSM-249 hull page [other_primary]
    Locator
    Hull-page disposition entry
    Finding type
    vessel_history
    Finding
    USS LSM-249 was decommissioned on 17 June 1946 and transferred the same day to the Republic of China. The hull page reports the strike date as unknown and final disposition as unknown.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    1946 and after
    Limitations
    Establishes transfer and the source's unknown-date/unknown-fate statements; no subsequent foreign-service, shipbreaking, hazmat, or asbestos record is supplied.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-249-lsm249-04
  3. [3]NavSource Online, USS LSM-249 specifications [other_primary]
    Locator
    Specification block
    Finding type
    historical_record
    Finding
    The hull page lists 5 officers and 54 enlisted, troop accommodations for 2 officers and 46 enlisted, and two General Motors model GM 16-278A reversible diesel engines with hydraulic clutches, direct drive, 1,440 BHP each at 720 rpm, twin propellers, and 2,800 shp; it also lists two diesel-drive 100-kW AC generators and one diesel-drive 20-kW DC generator.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    1944-1946
    Population
    Ship's company and embarked troop capacity
    Limitations
    Supports complement and diesel propulsion only. It does not identify asbestos-containing components or establish that any machinery, gasket, packing, electrical, or deck material contained asbestos.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-249-lsm249-03
  4. [4]National Archives, Researching Asbestos aboard US Naval Vessel up through 1961 [other_primary]
    Locator
    Beginning Research and Bureau of Ships General, Confidential, and Secret Correspondence sections
    Finding type
    asbestos_application
    Finding
    The National Archives guide states that asbestos use in U.S. Navy materiel from 1941 through 1961 is a research subject requiring ship, class, type, shipyard, and overhaul records, and directs researchers to begin with ship history and then Bureau of Ships records. It does not identify asbestos aboard LSM-249 or any specific product aboard this hull.
    Verification
    verified
    Role
    context
    Documentation level
    class_or_era
    Accessed
    2026-10-01
    Study period
    1941-1961
    Population
    Researchers and U.S. Navy materiel, 1941-1961
    Limitations
    Research guidance and period context only; it is not a finding that asbestos was installed aboard LSM-249 and does not establish product, quantity, location, condition, exposure, or causation.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-249-lsm249-05
  5. [5]Source-review negative across the retrieved official and authoritative materials listed in the search ledger [other_primary]
    Locator
    search_ledger rows sl-uss-lsm-249-lsm249-01 through -04 and -07
    Finding type
    historical_record
    Finding
    No ship-specific asbestos survey, product inventory, abatement record, condition report, or asbestos-containing product identification was located in the public hull, NHHC organization, and NARA materials reviewed for LSM-249.
    Verification
    verified
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    1944-1946 and later disposition
    Limitations
    A negative public-source finding is not proof that asbestos was absent. Non-digitized Navy, shipyard, foreign-transfer, and later-disposition records may contain additional evidence; documentation remains class_or_era.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-249-lsm249-06
  6. [6]CourtListener API v4 via /Users/charlesfletcher/devin-prompts/cl-auth-search.py [court_record]
    Locator
    search_ledger rows sl-uss-lsm-249-lsm249-05 and -06
    Finding type
    historical_record
    Finding
    The authenticated CourtListener exact-name opinion search returned one unrelated Texas oil-and-gas opinion; it did not identify USS LSM-249, its crew, or asbestos exposure aboard this hull. The exact-name docket and hull-number opinion requests did not complete, and the hull-number docket request was not made after the helper reported the fleet-wide pacing budget was spent.
    Verification
    partial
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    2026-10-01
    Limitations
    Incomplete authenticated sweep, not proof that no case exists. The returned opinion was classified as other litigation/name-text collision and excluded; incomplete and unmade requests were not treated as no-result searches.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-249-lsm249-07
  7. [7]NavSource Online, Amphibious Photo Archive, USS LSM-249 hull page [other_primary]
    Locator
    Hull-page chronology and LSM-1 class heading
    Finding type
    vessel_history
    Finding
    USS LSM-249 was laid down 21 August 1944 at Western Pipe and Steel Company, San Pedro, California; launched 15 October 1944; and commissioned on 30 November 1944 with Lt. Irvin E. Ayer, USNR, in command.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    1944
    Population
    Western Pipe and Steel construction workforce and commissioning crew
    Limitations
    Establishes construction and commissioning identity; the source does not document asbestos, insulation composition, hazmat condition, exposure, or causation.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-249-lsm249-01
  8. [8]NavSource Online, Amphibious Photo Archive, USS LSM-249 hull page [other_primary]
    Locator
    Hull-page service chronology and campaign table
    Finding type
    vessel_history
    Finding
    During World War II, USS LSM-249 was assigned to the Asiatic-Pacific Theater with LSM Flotilla Eight, LSM Group Twenty-Two, and LSM Division Forty-Four, and participated in the Okinawa Gunto operation from 1 to 3 April 1945. After the war it performed listed occupation and China service in the Far East.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-01
    Study period
    1944-1946
    Population
    Ship's company and Okinawa, occupation, and China-service personnel
    Limitations
    Establishes the listed assignments and operations only; it does not establish asbestos content or exposure.
    Atlas source
    true
    Evidence ID
    ev-uss-lsm-249-lsm249-02

Attribution

Compiled by
Paul Danziger; Rod de Llano
Publisher
Danziger & De Llano, LLP
License
CC-BY-4.0
Citation
Danziger, P., and De Llano, R. (2026). AsbestosAtlas Navy Vessel Asbestos Exposure Dataset. Danziger & De Llano, LLP. DOI: not yet assigned
Dataset version
asbestosatlas-ships-2026.10.12-rc.1
DOI
not yet assigned