USS LST-990

Name
USS LST-990
Hull designation
LST-990
Vessel class
LST-1
Evidence tier
Tier 2
Evidence entries
10
Record ID
uss-lst-990-lst990
Dataset version
2026.10.12-rc.1
Canonical URL
https://asbestosatlas.org/ships/uss-lst-990-lst990

Evidence

10 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-10).

  1. [1]research packet 843-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-lst-990-lst990-pkt-843-packet-md
  2. [2]DANFS, LST-990 (NHHC; live page 404s on both URL forms - Wayback capture 2025-02-02 cited, archived copy) [nhhc_danfs]
    Locator
    DANFS entry text, complete article (single paragraph + operations list)
    Finding type
    vessel_history
    Finding
    DANFS: LST-990 laid down 26 February 1944 at the Boston Navy Yard; launched 27 March 1944; commissioned 1 May 1944, Lt. William C. Greenleaf, USNR, in command. WWII Asiatic-Pacific operations: capture and occupation of southern Palau Islands (September-October 1944); Leyte landings (October-November 1944); Zambales-Subic Bay (January 1945); assault and occupation of Okinawa Gunto (March-June 1945). Post-war occupation duty in the Far East until early December 1945; decommissioned 10 July 1946; struck from the Navy list 25 September 1946; sold 26 September 1947 to Boston Metals Co., Baltimore, Md., for scrapping. Four battle stars for WWII service.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-03
    Study period
    1944-1947
    Population
    Crew and embarked troops, 1944-1946
    Limitations
    DANFS names Lt. William C. Greenleaf as commissioning commanding officer; NavSource's commanding-officer list names LT. Richard M. Zachariae, USNR (1 May 1944 - September 1944) with Greenleaf following - an unresolved authoritative-source conflict carried in gaps. DANFS does not give a Mindoro campaign credit; the Mindoro participation is documented separately by NARA war-diary records (ev-03). Contains no asbestos information.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-990-01
  3. [3]NavSource Online: Amphibious Photo Archive, USS LST-990 page (build/milestone timeline, task organization, campaign table, specifications, commanding-officer list, NHHC/NARA/AWM-contributed photographs) [other_primary]
    Locator
    Page sections: milestones; Asiatic-Pacific campaigns table; specifications block; commanding officers table; photo captions
    Finding type
    vessel_history
    Finding
    NavSource: LST-542 class; laid down 26 February 1944 Boston Navy Yard; launched 27 March 1944; commissioned 1 May 1944 (LT. Richard M. Zachariae, USNR listed at commissioning). Okinawa assignment: LST Flotilla Sixteen (CAPT. N. W. Sears), LST Group Forty-Seven (CDR. L. A. Drexler), LST Division Ninety-Three. Campaign table: southern Palaus 6 Sep-14 Oct 1944; Leyte landings 18 Oct-6 Nov 1944; Zambales-Subic Bay 29-30 Jan 1945; Okinawa Gunto 26 Mar-10 Jun 1945. Navy Occupation Service Medal periods 20 Sep-3 Oct 1945 and 15 Oct-4 Dec 1945. Decommissioned 10 July 1946; struck 25 September 1946; sold for scrapping 26 September 1947 to Boston Metals Co., Baltimore. Specifications: 1,625 t light / 4,080 t full / 2,366 t beaching; 328 ft oa; 50 ft beam; 11.6 kt trial; 13 officers / 104 enlisted; troops 16 officers / 147 enlisted; 2 LCVP; two GM 12-567A 900 hp diesels, single Falk main reduction gear, two propellers 1,700 shp, twin rudders, three diesel-drive 100 kW 230 V DC generators. CO list: Zachariae (1 May 1944-Sep 1944), Greenleaf (Sep 1944-Dec 1945), LTjg. Lewis (Dec 1945-Mar 1946), LTjg. Albert Monroe Sackett (Mar 1946-10 Jul 1946; later RADM).
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-03
    Study period
    1944-1947
    Population
    Crew and embarked troops, 1944-1946
    Limitations
    NavSource is a volunteer-maintained archive that reproduces NHHC/DANFS text and NARA-captioned photography; contributor captions (crew/donor identifications) are less authoritative than the reproduced official material - the LST-990-in-frame identifications on the Leyte/Mindoro beach photos are contributor-level (see ev-04). Commissioning-CO entry conflicts with DANFS (see ev-01 limitation and gaps). One page caption carries the typo 'LCT-990' for LST-990 - not propagated. Contains no asbestos information.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-990-02
  4. [4]NARA Catalog, RG 38 (Records of the Office of the Chief of Naval Operations), WWII War Diaries, Other Operational Records and Histories (series NAID 4697018): NAID 139781325 'USS LST-990 - Form Reports of AA Actions off Mindoro Island, Philippines on 12/15/44' (Microfilm Roll A1317); NAID 139881955 'USS LST-990 - Rep of ops in the amphibious assault on Mindoro Is, Philippines on 12/15/44' (Roll A1417); NAID 139893151 'USS LST-990 - Rep of ops in the amphibious assault landing in the La Paz-San Narcisco Area, Luzon Is, Philippines 1/29/45-2/2/45' (Roll A1431) [other_primary]
    Locator
    NARA Catalog file units NAID 139781325 (Roll A1317), NAID 139881955 (Roll A1417), NAID 139893151 (Roll A1431); companion catalog URLs https://catalog.archives.gov/id/139881955 and https://catalog.archives.gov/id/139893151
    Finding type
    historical_record
    Finding
    NARA catalogs three LST-990 file units in the WWII War Diaries series: ship-generated reports of anti-aircraft actions off Mindoro Island 15 December 1944; the operations report for the amphibious assault on Mindoro 15 December 1944; and the operations report for the amphibious assault landing in the La Paz-San Narcisco area, Luzon, 29 January-2 February 1945 (the Zambales operation credited in DANFS). All three are digitized (Fold3 partnership scans listed in catalog metadata).
    Verification
    verified
    Role
    archival_lead
    Documentation level
    ship_specific
    Accessed
    2026-10-03
    Study period
    1944-12-15 to 1945-02-02
    Population
    Crew during Mindoro assault (Dec 1944) and Zambales landing (Jan-Feb 1945)
    Limitations
    Catalog-level verification: file-unit titles name the hull and operations, but the scanned page contents were not individually reviewed this session. The Mindoro record documents operational participation; no separate Mindoro battle-star credit appears in the DANFS/NavSource campaign lists and none is claimed. War diaries are operational records - they contain no asbestos information.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-990-03
  5. [5]Australian War Memorial photographs 017890 (Red Beach, Leyte Island, dated 14 December 1944) and OG1909 (Mindoro Island, 15 December 1944); NavSource captions identify LST-919, LST-922, and LST-990 beached together in the series; US National Archives photo 80-G-453273 (LST-990 underway Jan-Feb 1945 with LCT-1027 on deck, via NavSource/NHHC contribution) [other_primary]
    Locator
    AWM collection records https://www.awm.gov.au/collection/017890 and https://www.awm.gov.au/collection/OG1909; NavSource page photo table; companion NavSource LCT-1027 page https://www.navsource.net/archives/10/18/181027.htm
    Finding type
    historical_record
    Finding
    Wartime photographic record places LST-990 with sister LSTs at the Philippine landing beaches in December 1944: AWM 017890 documents LSTs beached at Red Beach, Leyte, 14 December 1944, and AWM OG1909 documents landing ships beached at Mindoro 15 December 1944 (the AWM catalog caption names LST-919; NavSource contributor captions identify LST-919, LST-922, and LST-990 in the same series). NARA photo 80-G-453273 shows LST-990 underway January-February 1945 carrying LCT-1027, which she transported between Port Hueneme, CA, and San Nicholas Island.
    Verification
    partial
    Role
    archival_lead
    Documentation level
    ship_specific
    Accessed
    2026-10-03
    Study period
    1944-12-14 to 1945-02
    Population
    Crew during Leyte/Mindoro beach operations, December 1944
    Limitations
    AWM catalog text names only LST-919; the LST-990-in-frame identification rests on NavSource contributor captions, not the memorial's own cataloging - hence archival_lead rather than a confirmed photographic record of the hull at those beaches. NARA photo number 80-G-453273 is transcribed from the NavSource caption (NHHC-contributed); the photo was not located at item level in the NARA catalog this session. Contains no asbestos information.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-990-04
  6. [6]Consolidated era inference built on: Bureau of Ships, Ships' Data U.S. Naval Vessels Vol. 2 (Jan 1945), LST design table (shipscribe.com scan); NavSource LST-990 specification block (diesel plant confirmed ship-specific) [other_primary]
    Locator
    SDB1945v2 LST design table; NavSource spec block propulsion lines
    Finding type
    asbestos_application
    Finding
    Era/design inference for a diesel-powered 1944-built LST: LST-990 carried two GM 12-567A diesel engines with diesel-drive generators - no boilers or steam plant, eliminating the boiler/turbine-lagging pathway typical of steam ships. Asbestos-relevant applications for the type are diesel exhaust lagging and gaskets, engine-room thermal and acoustic insulation, deck coverings and tile, bulkhead and accommodation insulation, winch/windlass brake linings, and valve packing and flange gaskets - product categories documented as asbestos-containing in WWII-era naval construction.
    Verification
    inferred
    Role
    supporting
    Documentation level
    class_or_era
    Accessed
    2026-10-03
    Study period
    1944-1948
    Population
    Construction trades at Boston Navy Yard (1944); engine-room crew; embarked troops in berthing spaces; scrapping-yard workers (Boston Metals Co., 1947-48)
    Limitations
    Class/era inference only - no material schedule, ship's plan, survey, or hull-specific record names asbestos aboard LST-990. The diesel plant narrows but does not eliminate the exposure pathway. Establishes no quantities, no individual exposure, and no present-day material presence (hull scrapped 1947, decades before abatement-era record-keeping).
    Atlas source
    true
    Evidence ID
    ev-uss-lst-990-05
  7. [7]In re John Crane, Inc., No. 01-03-00698-CV (Tex. App. 1st Dist. 2003), as indexed in the Atlas shipyards.json record for Boston Naval Shipyard (ev-boston-naval-shipyar-02): worker alleged exposure to John Crane gaskets and sealing materials at Boston Naval Shipyard [court_record]
    Locator
    shipyards.json yard_id boston-naval-shipyard; Justia URL (blocked 403) https://law.justia.com/cases/texas/first-court-of-appeals/2003/79799.html
    Finding type
    litigation_documented
    Finding
    Builder-yard context: Boston Navy Yard / Boston Naval Shipyard (Charlestown), where LST-990 was built in early 1944, is a tier-3 Atlas yard with litigation-documented asbestos product identification - a Texas appellate opinion records a worker's allegation of exposure to John Crane gasket and packing material while working at Boston Naval Shipyard. Yard WWII peak employment is recorded at 50,128 (1943).
    Verification
    verified
    Role
    context
    Documentation level
    context_only
    Accessed
    2026-10-03
    Study period
    not stated in indexed record
    Population
    Boston Naval Shipyard workforce (yard-level, incl. 1944 construction period)
    Limitations
    Yard-level context, not a hull finding: the allegation names the shipyard, not LST-990 or any vessel, and per litigation-stage discipline it is a pleading-level allegation inside an appellate mandamus posture, not an adjudicated exposure finding. No exposure period for the allegation is stated in the indexed record. Justia case URL returned HTTP 403 to automated fetch this session; citation carried without live URL (blocked source disclosed).
    Atlas source
    true
    Evidence ID
    ev-uss-lst-990-06
  8. [8]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)
    Finding type
    gov_survey
    Finding
    GAO documented the Navy's asbestos-protection program: insulation containing asbestos was used extensively in naval ship construction and repair for decades; standing policy (1975) removed asbestos insulation only when damaged or required for repairs, modified 1979 to selective replacement in high-maintenance areas.
    Verification
    verified
    Role
    context
    Documentation level
    context_only
    Accessed
    2026-10-03
    Study period
    1979 (report); era policy frame for 1940s construction
    Population
    Navy shipyard workers; asbestos program review
    Limitations
    Program-level documentation only. The policies described postdate this hull's existence by three decades (sold for scrapping September 1947) - the record explains both the era of asbestos ship construction and why no abatement-era survey could exist for this hull. gao.gov returns HTTP 403 to automated fetch (standing defect since Batch 01); cited from the product-page description.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-990-07
  9. [9]Batch-7533 search ledger (this record): DANFS (archived); NavSource; NARA catalog; AWM collection; NVR; shipyards.json; secondary-web asbestos sweep; CourtListener attempt [other_primary]
    Locator
    search_ledger rows sl-uss-lst-990-01 through sl-uss-lst-990-09
    Finding type
    historical_record
    Finding
    No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or document naming asbestos aboard LST-990 was found in the public sources searched (see search_ledger). Expected for a hull sold for scrapping in 1947 - pre-dating asbestos abatement regulation and hazmat survey practice by decades. CourtListener could not be searched this session (daily API quota exhausted, ~6.3 h reset) - litigation status is an open gap, not a negative result; the class-level CourtListener sweep located no asbestos docket naming a specific LST hull.
    Verification
    verified
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-10-03
    Study period
    2026-10-03
    Limitations
    Absence of a located public record does not prove absence of asbestos aboard - 1944 naval construction and the documented builder yard are era-consistent with asbestos use. Does not establish that asbestos was or was not present; does not establish or defeat any claim of exposure or legal eligibility. Litigation coverage is incomplete because CourtListener was quota-blocked.
    Atlas source
    true
    Evidence ID
    ev-uss-lst-990-08
  10. [10]Commissioning-commander conflict: DANFS (NHHC, via Wayback) vs NavSource commanding-officer list (courtesy Wolfgang Hechler and Ron Reeves) [other_primary]
    Locator
    DANFS article text vs NavSource 'Commanding Officers' table
    Finding type
    historical_record
    Finding
    Authoritative-source conflict on the commissioning commanding officer: DANFS states LST-990 was 'commissioned on 1 May 1944, Lt. William C. Greenleaf, USNR, in command'; NavSource lists LT. Richard M. Zachariae, USNR, at commissioning (1 May 1944 - September 1944) with Greenleaf taking command September 1944 - December 1945. Both sources agree Greenleaf commanded through most of the war. The conflict is unresolved; secondary mirrors (historycentral, Wikipedia-derived copies) propagate the DANFS name.
    Verification
    partial
    Role
    correction
    Documentation level
    ship_specific
    Accessed
    2026-10-03
    Study period
    1944
    Limitations
    Unresolved conflict between two authoritative sources - no primary source (commissioning orders, deck log) was available to adjudicate. Both names are carried; neither is asserted exclusively. Deck logs in NARA RG 24 are the adjudicating record (not digitized/located this session).
    Atlas source
    true
    Evidence ID
    ev-uss-lst-990-09

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