USS Half Moon (AVP-26)

Name
USS Half Moon
Hull designation
AVP-26
Vessel class
Barnegat
Evidence tier
Tier 2
Evidence entries
6
Record ID
uss-half-moon-avp26
Dataset version
2026.10.12-rc.1
Canonical URL
https://asbestosatlas.org/ships/uss-half-moon-avp26

Evidence

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

  1. [1]Naval History and Heritage Command, Dictionary of American Naval Fighting Ships, 'Half Moon' [nhhc_danfs]
    Locator
    Heading and opening paragraph; final paragraph
    Finding type
    vessel_history
    Finding
    DANFS identifies Half Moon as Barnegat-class AVP-26, originally designated AGP-6, launched by Lake Washington Shipyards at Houghton on 12 July 1942, redesignated AVP-26 on 1 May 1943, and commissioned on 15 June 1943. It gives a complement of 215, Pacific seaplane-tender service, Navy decommissioning on 4 September 1946, and two World War II battle stars.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Limitations
    History and complement only. DANFS does not identify asbestos, a ship-specific material installation, crew exposure, or a survey.
    Atlas source
    true
    Evidence ID
    ev-uss-half-moon-avp26-01
  2. [2]U.S. Coast Guard Historian's Office, 'Half Moon, 1948 (WHEC-378)' [other_primary]
    Locator
    Commissioned/Decommissioned; Particulars as of 1967; Cutter History, final paragraph
    Finding type
    vessel_history
    Finding
    The Coast Guard records loan on 30 July 1948, Coast Guard commissioning on 14 September 1948, permanent transfer on 26 September 1966, and service as WAVP-378/WHEC-378. Its 1967 particulars give Fairbanks-Morse direct-reversing diesel main engines and a complement of 10 officers, 3 warrants, and 138 men. It records decommissioning on 15 July 1969 and sale for scrap to Cantieri Navali, Santa Maria, Italy, on 29 April 1970.
    Verification
    verified
    Role
    supporting
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Limitations
    The 1967 engine and complement particulars describe the cutter period, not necessarily every Navy-era configuration. The page gives no asbestos inventory, survey, or abatement history; sale for scrap does not establish the completion date of physical dismantling.
    Atlas source
    true
    Evidence ID
    ev-uss-half-moon-avp26-02
  3. [3]Occupational Safety and Health Administration, Occupational Exposure to Asbestos, 59 Fed. Reg. 40964 (10 August 1994) [other_primary]
    Locator
    Shipbuilding and repairing—historical contact with asbestos in shipyard work, lines 1749-1755 of online text
    Finding type
    asbestos_application
    Finding
    In its 1994 asbestos rulemaking, OSHA described extensive asbestos use aboard American ships from the early 1940s through the late 1970s, including insulation and joiner materials, and identified ship repair and overhaul as possible exposure settings. This is fleet-era context for researching a ship launched in 1942 and in service through 1969.
    Verification
    verified
    Role
    supporting
    Documentation level
    class_or_era
    Accessed
    2026-09-26
    Limitations
    OSHA does not name Half Moon, her class, builder, or any installed product aboard this hull. Its broad pre-1975 statement is not a ship-specific finding and cannot establish exposure to any individual. Boiler-insulation examples must not be attributed to this diesel-propelled ship.
    Atlas source
    true
    Evidence ID
    ev-uss-half-moon-avp26-03
  4. [4]National Archives, Ship Plan Index; Researching Asbestos aboard US Naval Vessel up through 1961 [other_primary]
    Locator
    HALF MOON rows for AVP-26 and WHEC 378; research guide https://www.archives.gov/research/military/navy/guided-topics/asbestos, Ship Engineering Drawings section
    Finding type
    historical_record
    Finding
    NARA's Ship Plan Index lists Half Moon AVP-26 under RG 19 Hull Series of Ship Engineering Drawings (NAID 153714265) and microfilm (NAID 175669299), and Half Moon WHEC 378 under RG 26 Cutter Plans After 1915 (NAID 175671505). NARA's asbestos research guide directs researchers to S39 insulation and lagging and, where available, S48 piping plans.
    Verification
    verified
    Role
    archival_lead
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Limitations
    The index proves only that drawing collections are indexed for this hull. The underlying plans and S39/S48 sheets were not inspected; their presence and any asbestos notation are unknown. The index also has an AVD-26 row under this name, which was excluded as a designation mismatch.
    Atlas source
    true
    Evidence ID
    ev-uss-half-moon-avp26-04
  5. [5]Batch 3058 search ledger, rows sl-uss-half-moon-avp26-01 through -05 [other_primary]
    Locator
    Search ledger in this record; source scope and queries recorded there
    Finding type
    historical_record
    Finding
    The reviewed DANFS, Coast Guard history, NARA index and publicly indexed source searches did not yield a ship-specific asbestos inventory, survey, specification, or abatement record for Half Moon.
    Verification
    verified
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Limitations
    A negative search result in the reviewed public material is not evidence that asbestos was absent. Indexed plans and original Coast Guard files remain unexamined; asbestos presence, products, quantities, and individual exposures remain unknown.
    Atlas source
    true
    Evidence ID
    ev-uss-half-moon-avp26-05
  6. [6]CourtListener authenticated v4 search API, via fleet helper; Batch 3058 search ledger [court_record]
    Locator
    Search ledger rows sl-uss-half-moon-avp26-06 through -14; individual collision URLs in rows -10 through -14
    Finding type
    litigation_documented
    Finding
    Authenticated CourtListener v4 searches returned zero opinion results for the exact name "USS Half Moon" and hull number "AVP-26", and zero docket results for the exact name. The hull-number docket query returned five records; case names and subjects identify all five as unrelated search collisions, with no record identifying this vessel or alleging asbestos exposure aboard her.
    Verification
    verified
    Role
    negative_finding
    Documentation level
    ship_specific
    Accessed
    2026-09-26
    Limitations
    This is an indexed CourtListener search result, not a finding that no litigation exists in any court. The five unrelated cases are classified from their indexed titles, suit natures, and returned document snippets; their full dockets were not reviewed. No claim of vessel exposure or a judicial ruling is inferred.
    Atlas source
    true
    Evidence ID
    ev-uss-half-moon-avp26-06

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