USS PC-550

Name
USS PC-550
Hull designation
PC-550
Vessel class
PC-461
Evidence tier
Tier 2
Evidence entries
6
Record ID
uss-pc-550-pc550
Dataset version
2026.10.12-rc.1
Canonical URL
https://asbestosatlas.org/ships/uss-pc-550-pc550

Evidence

6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).

  1. [1]research packet 905-packet.md [other_primary]
    Finding type
    vessel_history
    Finding
    Identity packet verdict: VERIFIED (thin on key dates)
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Limitations
    qualifier: VERIFIED (thin on key dates)
    Evidence ID
    uss-pc-550-pc550-pkt-905-packet-md
  2. [2]National Archives, Special List #44, by Ship Numbers, PC-550 row [other_primary]
    Locator
    PDF p. 72, PC-550 row
    Finding type
    vessel_history
    Finding
    NARA Special List #44 lists PC-550 with indexed logbook coverage beginning 16 January 1943 and ending 15 June 1944. These are indexed-logbook dates, not independently verified commissioning, decommissioning, or transfer dates.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-10-03
    Limitations
    The index supplies logbook coverage only. It does not establish construction, commissioning, decommissioning, transfer, specifications, complement, or asbestos content.
    Atlas source
    true
    Evidence ID
    ev-uss-pc-550-pc550-01
  3. [3]DANFS, Sentinel III (AM-113), Sicily narrative naming PC-550 (archived 2025-04-01; live NHHC URL returned 404) [nhhc_danfs]
    Locator
    10 July 1943 narrative paragraph
    Finding type
    vessel_history
    Finding
    DANFS's Sentinel III (AM-113) narrative identifies PC-550 among the craft sent to assist USS Sentinel after Sentinel was bombed and mortally damaged off Licata during the Sicily landings on 10 July 1943. The narrative attributes evacuation of seriously wounded to LCI-33 and SC-530, not PC-550.
    Verification
    partial
    Role
    context
    Documentation level
    ship_specific
    Accessed
    2026-10-03
    Limitations
    The live NHHC URL returned 404 this session; a Wayback capture was verified and is cited as archived. This cross-vessel passage is not a basis to claim PC-550 evacuated survivors or to establish material conditions aboard.
    Atlas source
    true
    Evidence ID
    ev-uss-pc-550-pc550-02
  4. [4]NavSource Online, PC-550 hull page and PC/SC class index [other_primary]
    Locator
    Hull header/timeline; class index https://www.navsource.net/archives/12/01idx.htm
    Finding type
    historical_record
    Finding
    NavSource's live PC-550 compilation identifies a PC-461-class submarine chaser built at Sturgeon Bay; reports dates of 6 June 1941 laying down, 8 March 1942 launch, 28 April 1942 commissioning, 15 June 1944 transfer to France as Le Vigilant (W 62), and 1959 scrapping; and its class index describes a 173-foot steel-hulled, twin-diesel, two-shaft type with complement 65.
    Verification
    verified
    Role
    context
    Documentation level
    ship_specific
    Accessed
    2026-10-03
    Limitations
    NavSource is a specialist archival compilation, not a primary naval registry. It documents research context only and does not establish asbestos, products, quantities, crew exposure, legal eligibility, or a primary transfer/disposition record.
    Atlas source
    true
    Evidence ID
    ev-uss-pc-550-pc550-03
  5. [5]U.S. General Accounting Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (1979) [gao]
    Locator
    GAO product page, report summary and Navy policy description
    Finding type
    gov_survey
    Finding
    GAO's 1979 report reviewed Navy asbestos-use and worker-protection policy, including asbestos insulation in ship components and thermal insulation as a major shipboard use. It is Navy-wide context only and neither names PC-550 nor establishes asbestos aboard this hull or class.
    Verification
    partial
    Role
    context
    Documentation level
    context_only
    Accessed
    2026-10-03
    Limitations
    The product page was live but the PDF returned HTTP 403 to automated retrieval. Program-level context cannot prove hull-level asbestos presence, product identity, or exposure.
    Atlas source
    true
    Evidence ID
    ev-uss-pc-550-pc550-04
  6. [6]Research ledger for USS PC-550 (PC-550), 2026-10-03 [other_primary]
    Locator
    search_ledger entries sl-01 through sl-06
    Finding type
    historical_record
    Finding
    No ship-specific asbestos survey, abatement record, hazmat disclosure, material inventory, or qualifying asbestos litigation record was verified. The CourtListener sweep was not completed because the authenticated helper could not acquire a fleet pacing token on the first base query; litigation status is unknown, not negative.
    Verification
    partial
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-10-03
    Limitations
    A limited search is not proof that no record exists. CourtListener stopped at an explicit pacing stand-down before a result page returned. This row makes no finding about asbestos presence, individual exposure, causation, litigation merits, or legal eligibility.
    Atlas source
    true
    Evidence ID
    ev-uss-pc-550-pc550-05

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