Evidence
5 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-5).
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[1]Friedman, Norman. U.S. Small Combatants, Including PT-Boats, Subchasers, and the Brown-Water Navy (Annapolis: Naval Institute Press, 2002), pp. 148, 581-614 — as cited and relayed in the NHHC-sourced Wikipedia reference article 'List of mine warfare vessels of the United States Navy,' section 'Coastal minesweepers (Underwater locator) (AMCU)' / 'AMCU-7 class.' [other_primary]
- Locator
- Article section 'Coastal minesweepers (Underwater locator) (AMCU)', subsection 'AMCU-7 class', entry for AMCU-20; footnoted to Friedman (2002) p.148,581-614
- Finding type
- vessel_history
- Finding
- Within the U.S. Navy's Coastal minesweepers (Underwater locator) (AMCU) list, hull AMCU-20 is recorded as: 'USS Chimango (AMCU-20), ex-LCI-703, not commissioned.' All AMCU-7-class conversions (including AMCU-20) were LCI(L) hulls; on 7 February 1955 all surviving AMCU hulls were redesignated as coastal minehunters (MHC) with hull numbers unchanged, making the corresponding designation for this hull 'MHC-20' — also not commissioned under that name.
- Verification
- unverified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-09-23
- Study period
- 1952-1955 (designation history); WWII-era hull
- Limitations
- Names this exact hull (AMCU-20, ex-LCI-703) and is the basis for treating 'Chimango'/AMCU-20/MHC-20 as designations that were never carried into commissioned service — this record's canonical name is accordingly USS LCI(L)-703, not USS Chimango. However, the underlying primary source (Friedman's monograph) was not independently opened or read this session; only the Wikipedia-relayed citation was seen. NHHC/DANFS and the Naval Vessel Register, which would be the preferred primary confirmation, both returned HTTP 503 on every attempt this session. This row establishes identity/designation history only — it contains no asbestos information and supports no asbestos claim.
- Atlas source
- true
- Evidence ID
- ev-uss-chimango-amcu20-01
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[2]CourtListener API v4 search, query types 'o' (opinion) and 'r'/'d' (RECAP docket), queries: "LCI(L)-703" OR "LCI-703" OR "AMCU-20"; and "Chimango" [court_record]
- Locator
- CourtListener MCP connector search results, query_ids 962defad (opinions, hull-designation query, 0 hits), 10342d35 (RECAP, hull-designation query, 0 hits), d9c03a79/66f8bf7f/5e835ffd (bare-name 'Chimango' queries, 27 docket + 1 opinion hits, all classified as name collisions)
- Finding type
- litigation_documented
- Finding
- No qualifying ship-specific asbestos litigation located for this hull. CourtListener API v4 opinion and docket (RECAP) searches for the exact strings "LCI(L)-703", "LCI-703", and "AMCU-20" returned zero results. A broader search on the bare name "Chimango" returned 27 docket/opinion hits, all of which are name collisions unrelated to this vessel: the great majority are Bernard L. Madoff Investment Securities / Fairfield Sentry Limited feeder-fund liquidation and clawback litigation (S.D.N.Y.), in which 'Chimango' is an unrelated offshore-fund party name, plus one Endangered Species Act matter (Center for Biological Diversity v. Wheeler, D.D.C.) referencing the chimango caracara bird. None concern this vessel, asbestos, or any Navy litigation.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-23
- Study period
- 2026-09-23
- Limitations
- Absence of a located case does not prove absence of any asbestos exposure aboard this hull; it establishes only that no qualifying litigation naming this hull by designation was found via CourtListener as of the access date. Does not establish or defeat any exposure claim, causation, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-chimango-amcu20-02
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[3]Batch-1649 search ledger (this record): NHHC/DANFS ship-histories site (503, all URLs); Naval Vessel Register nvr.navy.mil (503); NavSource Online (DNS failure); Wikipedia mine-warfare and LCI(L) reference articles; CourtListener API v4 [other_primary]
- Locator
- search_ledger rows sl-uss-chimango-amcu20-01 through sl-uss-chimango-amcu20-08
- Finding type
- historical_record
- Finding
- No ship-specific asbestos record located: no survey, abatement contract, hazmat disclosure, or docketed case naming this hull was found in the public sources searched. NHHC/DANFS (all ship-histories URLs attempted, including the index) and the Naval Vessel Register both returned HTTP 503 throughout this session; NavSource Online could not be reached at all (DNS resolution failure). These are standing site-access defects for this research session, not findings about the vessel.
- 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 — a 1944-built small combatant hull is era-consistent with asbestos-containing materials regardless of whether a public record survives. Does not establish presence or absence, and does not establish or defeat any exposure claim or legal eligibility. Also does not establish whether the hull still exists in any form; disposition is unknown (see gaps).
- Atlas source
- true
- Evidence ID
- ev-uss-chimango-amcu20-03
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[4]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); PMID 3555021 [other_primary]
- Locator
- PubMed record PMID 3555021; 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 in U.S. shipbuilding during World War II, the era and program under which this LCI(L) hull was built, and that wartime industrial expansion drove an unprecedented rise in asbestos utilization across the shipbuilding program generally.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- 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 this vessel, this vessel's class, or its builder, and does not establish that asbestos was or remains aboard this specific hull, nor quantity, location, condition, exposure, or causation. LCI(L) craft of this era were diesel-propelled, not steam-powered, so boiler-specific asbestos applications discussed for larger steam vessels do not apply here without further, hull- or class-specific support (none located).
- Atlas source
- true
- Evidence ID
- ev-uss-chimango-amcu20-04
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[5]NARA Guide to Federal Records: RG 19 (Bureau of Ships) and RG 24 (Bureau of Naval Personnel, deck logs); NHHC Ship History Branch reference-request guidance [other_primary]
- Locator
- RG 19 finding aid; NHHC contact/reference-request page (not independently reachable this session — see search_ledger)
- Finding type
- historical_record
- Finding
- Archival lead (not retrieved — requires research-room access or a reproduction order; no spend authorized): NARA Record Group 19 (Records of the Bureau of Ships) and RG 24 (deck logs/muster rolls) may hold hull-specific construction, conversion-cancellation, and disposition records for LCI(L)-703 / nominal AMCU-20 / MHC-20; the Washington Navy Yard Naval History and Heritage Command curator branch is the standard point of contact for ship-history file folders (the 'DANFS working files') that underlie published DANFS entries, which may cover this hull even though no public DANFS page for it was found this session.
- Verification
- unverified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-23
- Study period
- 1944-1955 records (estimated)
- Limitations
- Record-group mapping only — no box-level retrieval performed; existence of asbestos-specific or even hull-specific documents for LCI(L)-703 is unknown until surveyed in person or NHHC is reached directly. Nothing in this row is an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-chimango-amcu20-05