USS Cockatoo (AMCU-21)

Name
USS Cockatoo
Hull designation
AMCU-21
Vessel class
AMc
Evidence tier
Tier 2
Evidence entries
3
Record ID
uss-cockatoo-amcu21
Dataset version
2026.10.12-rc.1
Canonical URL
https://asbestosatlas.org/ships/uss-cockatoo-amcu21

Evidence

3 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-3).

  1. [1]Corn, Jacqueline Karnell, and Jennifer Starr, "Historical perspective on asbestos: Policies and protective measures in World War II shipbuilding," American Journal of Industrial Medicine 11(3):359-373 (1987) [other_primary]
    Locator
    Abstract and article, AJIM 11(3):359-373
    Finding type
    asbestos_application
    Finding
    Peer-reviewed historical study documents that asbestos was used extensively as a fireproofing and insulating material across U.S. shipbuilding during World War II, the era in which the predecessor hull LCI(L)-709 was built (laid down/launched/commissioned July 1944), and that wartime demand drove unprecedented asbestos utilization aboard Navy and landing-craft-type hulls generally.
    Verification
    verified
    Role
    context
    Documentation level
    context_only
    Accessed
    2026-09-23
    Study period
    1940s era documented; article published 1987
    Population
    WWII shipyard workers and ship crews (class/era context)
    Limitations
    Program/era-level scholarly documentation of asbestos use in WWII shipbuilding generally; does not name LCI(L)-709, its class, its builder, or the later AMCU-21 minesweeper conversion. Does not establish that asbestos was or remains aboard this hull, nor quantity, location, condition, exposure, or causation.
    Atlas source
    true
    Evidence ID
    ev-uss-cockatoo-amcu21-01
  2. [2]Batch-1650 search ledger (this record): CourtListener API v4 opinion searches for "AMCU-21", "LCI(L)-709", "LSIL-709", and "USS Cockatoo" + asbestos; CourtListener RECAP docket search for "Cockatoo" (120 dockets reviewed by caption/court — all high-collision non-qualifying: bird-custody, trademark, and unrelated-surname/bankruptcy matters; no Navy or asbestos matter among them); attempted NHHC DANFS, NVR, NavSource, and ibiblio HyperWar access (all blocked or unreachable — see ev-uss-cockatoo-amcu21-03 and search_ledger) [other_primary]
    Locator
    search_ledger rows sl-uss-cockatoo-amcu21-01 through sl-uss-cockatoo-amcu21-12
    Finding type
    historical_record
    Finding
    No ship-specific asbestos documentation was located for USS Cockatoo (AMCU-21) / ex-LSIL-709 / ex-LCI(L)-709: no NHHC/DANFS ship-history record, no Naval Vessel Register entry, no NavSource entry, no museum or NARA record, and no CourtListener-indexed opinion, RECAP docket, or RECAP document naming this hull or its predecessor designations was found.
    Verification
    verified
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-09-23
    Study period
    2026-09-23
    Limitations
    Absence of a located public record does not prove absence of asbestos aboard this hull in either configuration. It also does not prove the absence of a qualifying litigation record: the official Navy identity/history sources needed to confirm the hull's full designation chain and service dates were unreachable this session, which limits how precisely the litigation search could be targeted (see ev-uss-cockatoo-amcu21-03). Does not establish or defeat any exposure claim or legal eligibility.
    Atlas source
    true
    Evidence ID
    ev-uss-cockatoo-amcu21-02
  3. [3]uboat.net, "Allied Warships of WWII" — USS LCI(L)-709 entry [other_primary]
    Locator
    Ship detail page, construction and fate fields
    Finding type
    historical_record
    Finding
    Official Navy/NHHC sources for this hull's identity and service history could not be reached in this research session: history.navy.mil (NHHC DANFS) returned HTTP 503 on every attempt, including for the general Cockatoo I (AMc-8) DANFS page and the site root, indicating a session-wide outage rather than link rot on a single page; nvr.navy.mil (Naval Vessel Register) likewise returned HTTP 503; navsource.org and ibiblio.org (HyperWar DANFS mirror, used successfully as a fallback in prior batches) were both blocked by this session's network egress policy; catalog.archives.gov (NARA) returned no usable results through this session's fetch tool. No Wikipedia article exists for USS Cockatoo (AMCU-21) — it is a redlink on the en.wikipedia.org/wiki/USS_Cockatoo disambiguation page. A single non-official hobbyist database, uboat.net's "Allied Warships of WWII", carries a matching pre-conversion LCI(L)-709 record: builder "George Lawley & Sons (Neponset, Massachusetts, U.S.A.)"; laid down 11 Jul 1944; launched 20 Jul 1944; commissioned 27 Jul 1944 (consistent with the commissioning date stated in the task brief); fate listed only as "Sold in 1960," with no mention of the AMCU-21/Cockatoo redesignation.
    Verification
    unverified
    Role
    archival_lead
    Documentation level
    context_only
    Accessed
    2026-09-23
    Study period
    1944-1960
    Limitations
    uboat.net is a volunteer-maintained hobbyist database, not an official/authoritative source under this project's sourcing rules, and is not adopted as verified identity or service-history evidence — it is logged here only as an unverified lead for a future session with working access to NHHC DANFS, the Naval Vessel Register, or NavSource. It contains no asbestos information and supports no asbestos claim. Its own "Sold in 1960" fate note does not mention the AMCU-21 conversion at all, which this record cannot independently reconcile.
    Atlas source
    true
    Evidence ID
    ev-uss-cockatoo-amcu21-03

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