Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
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[1]research packet 1029-packet.md (4 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-yms-114-yms114-pkt-1029-packet-md
-
[2]National Archives, Special List #44, by Ship Numbers [other_primary]
- Locator
- PDF page 114; printed list page 113; YMS-114 row
- Finding type
- historical_record
- Finding
- National Archives Special List 44, by ship numbers, lists YMS-114 with Navy deck-log coverage from 10/1/1942 through 12/31/1942. The list is a record-coverage finding for the named hull, not a claim about commissioning or decommissioning dates.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-10-01 to 1942-12-31
- Population
- U.S. Navy deck-log records
- Limitations
- The list describes surviving or held log coverage only. It does not establish the vessel's lifecycle dates, asbestos content, exposure, causation, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-114-yms114-01
-
[3]NavSource Online, Courlan (MSC[O] 44), ex-AMS-44, ex-YMS-114 [other_primary]
- Locator
- History and specifications sections
- Finding type
- vessel_history
- Finding
- NavSource identifies this hull as YMS-114, built by San Diego Marine Construction Co.; laid down 6/26/1941, launched 3/13/1942, completed and commissioned 8/12/1942; reclassified and named Courlan (AMS-44) on 9/1/1947; reclassified MSC(O)-44 on 2/7/1955; and struck from the Naval Register on 11/1/1959. NavSource gives the fate as unknown.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1941-1959
- Limitations
- NavSource is used here for individual-hull identity and chronology as specified in the batch scope. It does not document asbestos, present condition, individual exposure, or causation; fate remains unknown in the source.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-114-yms114-02
-
[4]National Archives, Researching Asbestos aboard US Naval Vessel up through 1961 [other_primary]
- Locator
- Beginning Research; Cartographic Branch; Other Records sections
- Finding type
- gov_survey
- Finding
- The National Archives explains that research into asbestos aboard U.S. naval vessels through 1961 commonly uses ship engineering drawings, specifications, and related Navy records, and cautions that sister-ship material can differ by shipyard. This supports an archival research pathway for YMS-114 but does not identify asbestos aboard this hull.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-10-04
- Study period
- 1941-1961 records and research guidance
- Population
- Researchers of U.S. naval vessels through 1961
- Limitations
- This is archival guidance, not a material finding. It establishes neither the presence nor absence of asbestos aboard YMS-114 and does not establish exposure, quantity, condition, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-114-yms114-03
-
[5]U.S. Navy, OPNAVINST 5100.19F, Chapter B1, Asbestos Control [other_primary]
- Locator
- Chapter B1, paragraph 1e and B1-2
- Finding type
- asbestos_application
- Finding
- Navy occupational-safety instruction states that asbestos has been used aboard ships in insulation and lagging for high-temperature machinery, boilers and piping, gaskets, electrical wiring, certain deck tiles and paneling, and packing material. This is general Navy/era context only and does not show that any listed product was aboard YMS-114.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- Navy policy context; 2019 instruction
- Population
- U.S. Navy ships and shipboard work
- Limitations
- The instruction is a general Navy control document issued decades after this hull's construction. It cannot establish ship-specific installation, quantity, condition, retention, exposure, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-114-yms114-04
-
[6]Batch-8791 source review and CourtListener base-query ledger for USS Courlan/YMS-114 [other_primary]
- Locator
- search_ledger rows sl-uss-yms-114-yms114-01 through sl-uss-yms-114-yms114-08
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record was located in the sources reviewed: the NARA Special List 44 record, NARA asbestos research guide, NavSource hull history, and Navy asbestos-control instruction contain no YMS-114 asbestos survey, abatement record, material specification, or hazmat disclosure. The CourtListener sweep is separately recorded as incomplete because the required helper attempts produced no result payload.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04
- Limitations
- This is a negative public-record search result, not proof that asbestos was absent. The CourtListener component is incomplete because the helper returned no JSON payload; no litigation conclusion should be drawn from that gap. No claim about asbestos presence, exposure, causation, or legal eligibility is made.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-114-yms114-05