Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
-
[1]research packet 1029-packet.md (3 sources cited) [nhhc_danfs]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-yms-117-yms117-pkt-1029-packet-md
-
[2]NavSource Online, YMS-117 individual history and photo index page [other_primary]
- Locator
- Individual page history paragraph; page states no DANFS history is available for YMS-117
- Finding type
- historical_record
- Finding
- NavSource's individual YMS-117 page identifies the hull as a YMS-1-class auxiliary motor minesweeper built by Harbor Boat Building Co. at Terminal Island, California; it records laid down 1941-05-08, launched 1941-08-23, completed 1942-04-11, transferred to the War Shipping Administration 1947-05-08, struck from the Naval Register 1947-06-10, and fate unknown.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1941-1947
- Limitations
- NavSource is an individual-hull historical compilation, not a Navy commissioning instrument or asbestos survey. The page's 'completed' date is not converted into a commissioning date. It does not establish asbestos content, quantity, condition, exposure, or causation.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-117-yms117-01
-
[3]National Archives, Special List #44, by Ship Numbers [other_primary]
- Locator
- PDF page 114; YMS-117 row
- Finding type
- historical_record
- Finding
- National Archives Special List 44 indexes U.S. Navy deck logs for YMS-117 from 1942-04-11 through 1945-07-31.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1942-04-11 to 1945-07-31
- Population
- YMS-117 crew and operations documented in Navy deck logs
- Limitations
- This is a log-holding and coverage index, not the deck-log content itself. The interval is not treated as a commissioning or decommissioning date range and does not establish asbestos materials or exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-117-yms117-02
-
[4]NavSource Online, Auxiliary Motor Minesweeper (YMS) class description [other_primary]
- Locator
- Class-description paragraphs; YMS-1 through YMS-134 two-stack appearance group
- Finding type
- historical_record
- Finding
- NavSource's YMS class description identifies the type as wood-hulled, built at 35 yacht yards, and used during World War II for inshore minesweeping; it states that surviving YMS vessels were reclassified as AMS in 1947, but YMS-117's individual page records her 1947 transfer and strike and does not document that she survived for reclassification.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1941-1947
- Population
- YMS-1 class / World War II minesweepers
- Limitations
- Class context does not establish the materials installed on YMS-117. The general 1947 AMS statement is not applied to this hull because the individual page does not document an AMS designation.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-117-yms117-03
-
[5]Batch-8794 bounded source review; see search_ledger rows [other_primary]
- Locator
- search_ledger rows sl-uss-yms-117-yms117-01 through sl-uss-yms-117-yms117-08
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record was located in the reviewed sources: the NARA Special List entry is a deck-log coverage index, NavSource provides identity/history and class context without asbestos information, and the authenticated CourtListener sweep produced no results because the fleet-wide pacing gate blocked all four base requests before HTTP responses.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04
- Limitations
- A bounded search result is not proof that asbestos was absent. The CourtListener gap is an access limitation, not a no-litigation finding. No asbestos presence, absence, product identity, quantity, condition, individual exposure, or causation is established.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-117-yms117-04
-
[6]National Archives, Researching Asbestos aboard US Naval Vessel up through 1961 [other_primary]
- Locator
- Beginning Research; Volumes; Historical Notes sections
- Finding type
- asbestos_application
- Finding
- The National Archives research guide explains that ship-specific asbestos research may require Navy engineering drawings and identifies S39 insulation and lagging records among the relevant research paths; it also cautions that sister ships can differ by shipyard and materials. This is research context only, not evidence that asbestos was aboard YMS-117.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-10-04
- Study period
- 1941-1961 research scope
- Population
- U.S. Navy vessels built through 1961; archival research program
- Limitations
- The guide is methodology and record-navigation context. It does not name YMS-117, identify a YMS-117 drawing, or establish asbestos content, exposure, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-yms-117-yms117-05