Evidence
4 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-4).
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[1]research packet 923-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: MISMATCH
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Evidence ID
- uss-sc-678-sc678-pkt-923-packet-md
-
[2]Archived Naval History and Heritage Command, Dictionary of American Naval Fighting Ships, 'SC-601 - SC-700' (archived 2024-04-25; live NHHC URL returned 404 on 2026-10-03) [nhhc_danfs]
- Locator
- Archived NHHC DANFS 'SC-678' entry
- Finding type
- vessel_history
- Finding
- USS SC-678 was built by Thomas Knutson Shipbuilding Corp. at Halesite, Long Island, New York; her keel was laid 10 March 1942, she was launched 17 August 1942, commissioned 9 November 1942, and disposed of 9 April 1948.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1948
- Population
- Thomas Knutson Shipbuilding construction trades (1942); U.S. Navy crew (1942-1948)
- Limitations
- This archived DANFS entry establishes identity and basic milestones only. It provides no crew figure, service narrative, material list, asbestos finding, later disposition detail, or present location.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-678-sc678-01
-
[3]Naval Cover Museum, 'SC 678' (identity lead; live page verified 2026-10-03), compared with archived NHHC DANFS SC-678 entry [museum_official]
- Locator
- Naval Cover Museum, 'Ship Name and Designation History'; archived NHHC DANFS SC-678 entry
- Finding type
- historical_record
- Finding
- CORRECTION: this record identifies the hull as USS SC-678, an unnamed SC-497-class submarine chaser, and does not treat it as a PC-461-class patrol craft. The Naval Cover Museum page confirms the SC-678 identity and dates but displays an 'ex PC 678' label; the archived NHHC DANFS entry itself identifies the hull as SC-678. No official source supporting the alternate PC service identity was located in this research pass.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1948
- Limitations
- The museum page is an identity lead, not a naval registry, and its 'ex PC 678' label conflicts with the batch fact-QA scope correction. The correction retains only the official archived-DANFS SC designation; it does not establish a complete designation-history chain, construction materials, or asbestos status.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-678-sc678-02
-
[4]Batch-8052 search ledger: archived NHHC DANFS; Naval Cover Museum identity page; NARA/NHHC/Navy/NavSource searches; Firecrawl (rate-limited); CourtListener authenticated helper (fleet pacing token unavailable before request dispatch) [other_primary]
- Locator
- search_ledger rows sl-uss-sc-678-sc678-01 through -05
- Finding type
- vessel_history
- Finding
- No ship-specific asbestos survey, abatement record, environmental disclosure, or authoritative asbestos material record for USS SC-678 was located in the public sources searched. CourtListener's required four base queries were not completed: two attempts at the exact-name opinion query were held before dispatch by the fleet-wide pacing limiter, so litigation status is an open gap and this row is not a negative litigation finding.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03 research pass
- Limitations
- Absence of a located public record does not establish absence of asbestos aboard. The CourtListener litigation sweep remains incomplete, and no asbestos-qualified variant was run because no completed base query produced a 20-result overflow. NARA technical files, deck logs, disposal records, and a class technical specification are outstanding leads.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-678-sc678-03