Evidence
11 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-11).
-
[1]research packet 1051-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-316-yms316-pkt-1051-packet-md
-
[2]NavSource Online, Mine Warfare Vessel Photo Archive, YMS-316 (verified live 2026-10-04) [other_primary]
- Locator
- YMS-316 page header and construction/disposition block
- Finding type
- vessel_history
- Finding
- NavSource's live YMS-316 hull page identifies this vessel as a YMS-1-class auxiliary motor minesweeper: laid down 19 June 1942 by Harbor Boat Building Co., Terminal Island, California; launched 1 May 1943; completed 25 August 1943; struck from the Naval Register 10 June 1947; transferred to the State Department, Foreign Liquidation Commission 29 December 1947 and sold; fate unknown. The page gives call sign Nan-Peter-Sugar-Xray, states that no DANFS history is currently available for YMS-316, and notes no photograph of the vessel is available.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-1947
- Population
- Harbor Boat Building construction trades; YMS-316 crew; post-Navy custodians
- Limitations
- NavSource is a specialist photographic/archive compilation rather than a Navy register or DANFS entry; the page does not give a formal commissioning date, detailed service narrative, or post-sale disposition. It contains no asbestos or material-content statement.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-316-yms316-01
-
[3]NavSource Online, Mine Warfare Vessel Photo Archive, YMS-316 specifications block [other_primary]
- Locator
- YMS-316 specifications block
- Finding type
- historical_record
- Finding
- The hull page lists specifications for YMS-316: 270 tons displacement; 136 feet length; 24 feet 6 inches beam; 8 feet draft; 15-knot speed; complement 32; one 3-inch/50 dual-purpose mount, two 20-mm mounts, and two depth-charge projectors; two 880-bhp General Motors 8-268A diesel engines through Snow and Knobstedt single-reduction gear to two shafts.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-1947
- Population
- YMS-316 crew and machinery personnel
- Limitations
- The listed complement is a specification figure, not a dated muster count. Diesel machinery and the absence of a steam plant in this source constrain the plausible system context but do not establish asbestos content in any component.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-316-yms316-02
-
[4]National Archives, Special List #44, by Ship Numbers, PDF entry for YMS-316 [other_primary]
- Locator
- PDF page 118: YMS-316 8/31/1943 11/30/1945
- Finding type
- historical_record
- Finding
- The National Archives Special List 44, by Ship Numbers, lists YMS-316 deck-log coverage from 31 August 1943 through 30 November 1945. The entry is an archival inventory of cataloged log coverage; it does not assert that those dates are the commissioning or decommissioning dates of the vessel.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1943-08-31 to 1945-11-30
- Population
- YMS-316 crew and Navy operational activity during the indexed log period
- Limitations
- This is a finding aid, not the deck-log text. The logs were not retrieved or read, and the index entry contains no asbestos, insulation, exposure, or individual-service finding.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-316-yms316-03
-
[5]Naval Historical Society of Australia, 'On This Day' entries for 29 January 1945 and 30 January 1945 (HMAS Warrego II archive page) [other_primary]
- Locator
- HMAS Warrego II archive page: 'Australian Naval History on 29 January 1945' and 'Australian Naval History on 30 January 1945' entries
- Finding type
- historical_record
- Finding
- The Naval Historical Society of Australia's day-by-day naval history entries document YMS-316 operating in the Philippines in early 1945 as consort/tender to the RAN survey sloop HMAS Warrego: on 29 January 1945 'HMAS WARREGO and US motor minesweeper YMS 316 marked inshore shoals for the US landings at Subic Bay, Philippines,' continuing until 19 February and 'often landing armed parties in areas not cleared of the enemy to erect survey markers'; and on 30 January 1945 'HMAS WARREGO (sloop), and her US tender, YMS 316, carried out inshore surveys and buoyed wrecks off Bataan Peninsula while US troops fought their way off the landing beaches.' This places the hull in the Seventh Fleet / Southwest Pacific operating area in early 1945.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-01-29 to 1945-02-19
- Population
- YMS-316 crew during Philippine operations; embarked armed parties
- Limitations
- Institutional secondary source: the Naval Historical Society of Australia republishes day-by-day entries drawn from official RAN history; the underlying U.S. deck logs and action reports were not independently retrieved. The account names YMS-316 specifically for Subic Bay and Bataan operations Jan-Feb 1945; a separate commercial transcription of the Navy awards manual independently lists YMS-316 for the Zambales-Subic Bay campaign credit, consistent with this account (see gaps). Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-316-yms316-04
-
[6]Naval History and Heritage Command, United States Pacific Fleet Organization, 1 May 1945 (Minecraft, Pacific Fleet section) [nhhc_danfs]
- Locator
- Minecraft, Pacific Fleet section, motor-minesweeper roster (document pages ~134-135)
- Finding type
- historical_record
- Finding
- The NHHC 'United States Pacific Fleet Organization, 1 May 1945' lists motor minesweepers under Minecraft, Pacific Fleet - including YMS-310, YMS-311, YMS-317, YMS-318, YMS-319, and YMS-320 - but does not list YMS-316 anywhere in the document. This absence is consistent with the hull operating outside Pacific Fleet minecraft (the Seventh Fleet / Southwest Pacific area documented in ev-04), not with the hull being out of service in May 1945.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1945-05-01
- Population
- Pacific Fleet minecraft crews, 1 May 1945
- Limitations
- Absence from this one organization snapshot is a narrow finding: it shows only that YMS-316 was not carried under Pacific Fleet minecraft on 1 May 1945. It does not establish where the hull was on that date, and it contains no asbestos or materials information. The page was retrieved via Firecrawl rendering; a plain direct fetch returned 404 to automated retrieval this session.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-316-yms316-05
-
[7]Occupational Safety and Health Administration, Shipbuilding and Ship Repair: Outfitting [other_primary]
- Locator
- Outfitting page, asbestos paragraph and repair-exposure paragraph (verified live, HTTP 200)
- Finding type
- asbestos_application
- Finding
- OSHA's historical shipbuilding guidance states that asbestos was used in ship outfitting for piping and exhaust-manifold insulation and for fireproofing in living and working areas, and that removal during repair could create severe exposures. This is relevant early-1940s shipbuilding context for a 1943 Navy minesweeper.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1940s era context
- Population
- Shipbuilding and repair trades (era)
- Limitations
- General shipyard guidance, not a YMS-316 record. It does not establish that any listed product was installed aboard this wooden-hulled minesweeper, does not establish quantity or condition, and does not establish an individual's exposure or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-316-yms316-06
-
[8]U.S. Government Accountability Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (18 October 1979) [gao]
- Locator
- GAO product-page highlights; full report PDF was not directly retrievable in this session
- Finding type
- gov_survey
- Finding
- GAO's 1979 Navy review addressed asbestos use in Navy ships, the cost of removing asbestos from Navy ships, and Navy protection of shipyard workers. Its published summary states that the Navy's 1975 policy was to remove and replace non-asbestos materials only when damaged insulation had to be removed for necessary repairs, with a 1979 modification for selected high-maintenance areas.
- Verification
- partial
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1943-1979
- Population
- Navy shipyard workers and Navy vessels covered by the 1979 review
- Limitations
- Program-level Navy evidence, not a YMS-316 record. It supports era context only and does not prove installation, location, condition, disturbance, quantity, exposure, or causation aboard this hull. Direct automated access to the GAO page/PDF returned HTTP 403; the indexed official product summary was used.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-316-yms316-07
-
[9]National Archives, Researching Asbestos aboard US Naval Vessel up through 1961 [other_primary]
- Locator
- Official guided-topic page: RG 19 Entry P 11 minesweeper/minelayer information books; deck-log limitation note (verified live, HTTP 200)
- Finding type
- regulatory
- Finding
- NARA's official research guide identifies RG 19 Bureau of Ships records - including Entry P 11, Minesweeper and Minelayer General Information Books (1940-1962), a series directly on-point for this hull type - plus specification files and engineering drawings as the archival pathways for researching asbestos and related ship material questions for U.S. Navy vessels through 1961. The guide also states that Navy ship deck logs and muster rolls do not provide direct evidence of asbestos use or presence. No such hull-level file was retrieved for this record.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-10-04
- Study period
- 1941-1961
- Population
- U.S. Navy vessel material records, 1941-1961
- Limitations
- This row documents a research path, not the existence of asbestos aboard YMS-316. The cited guide expressly prevents treating the Special List 44 deck-log entry as asbestos evidence and does not substitute for retrieving the hull/class specifications, drawings, or correspondence.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-316-yms316-08
-
[10]Batch-8944 source review: NavSource YMS-316; NARA Special List 44; NARA asbestos research guide; Naval Historical Society of Australia; NHHC Pacific Fleet Organization 1 May 1945; OSHA outfitting guidance; GAO HRD-80-2 [other_primary]
- Locator
- Search ledger rows sl-uss-yms-316-yms316-01 through -16
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record was located in the public sources searched for YMS-316: the retained hull page, NARA deck-log finding aid, NARA asbestos research guide, OSHA outfitting guidance, and GAO Navy-wide review do not provide a YMS-316 asbestos survey, abatement contract, hazmat disclosure, material schedule, product identification, or adjudicated exposure finding. Ship-specific asbestos status is therefore unknown.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04
- Limitations
- A failure to locate a public record does not prove absence of asbestos aboard the hull. Undigitized RG 19 Entry P 11 minesweeper information books and other RG 19/RG 24 records remain an open lead. This negative finding does not establish or defeat any exposure claim or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-316-yms316-09
-
[11]CourtListener API v4 searches executed through cl-auth-search.py (authenticated, fleet-paced) [court_record]
- Locator
- search_ledger rows sl-uss-yms-316-yms316-11 through -16
- Finding type
- litigation_documented
- Finding
- CourtListener authenticated searches returned no qualifying hit naming this hull. The four required base searches were completed through cl-auth-search.py: exact-name opinion ("USS YMS-316", 0 results), exact-name docket ("USS YMS-316", 715 results), hull-number opinion ("YMS-316", 54 results), and hull-number docket ("YMS-316", 4,229 results). Every returned page was classified: all hits are name/number collisions - unrelated civil, criminal, bankruptcy, and product-liability records matching 'YMS' or '316' tokens; no opinion or docket names the vessel. Because the hull-number base queries overflowed their 20-result pages on collision mass, two asbestos-qualified variants were run per batch rules: "YMS-316" asbestos opinion (7 results - all Texas appellate collisions, zero ship/navy references) and "YMS-316" asbestos docket (448 results - the general asbestos-docket universe colliding on numeric tokens such as phone numbers and citation IDs, no vessel reference).
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04
- Population
- Potential YMS-316 asbestos-litigation records
- Limitations
- No qualifying hit was returned by the authenticated searches. This is not a merits finding and does not exclude non-indexed, sealed, or state-court-only litigation; it does not establish the absence of exposure aboard. Collision mass was classified by case-name and record inspection of each returned page; the asbestos-qualified variants were used to surface any ship-relevant record inside the overflow, per the batch variant rule. Result files preserved in the worktree as cl-316-*.json.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-316-yms316-10