Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
-
[1]research packet 901-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-sc-520-sc520-pkt-901-packet-md
-
[2]Naval History and Heritage Command, DANFS, SC-501 - SC-600 [nhhc_danfs]
- Locator
- SC-520 entry
- Finding type
- vessel_history
- Finding
- DANFS (live page verified 2026-10-06) states: SC-520 built at Vinyard SB Co., Milford, Del.; keel laid 1941-07-15; launched 1942-04-18; commissioned 1942-05-25; transferred to Maritime Commission 1947-09-25.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-06
- Study period
- 1941-1947
- Limitations
- Supports only the listed construction and transfer facts. The DANFS entry gives no service narrative, dimensions, crew complement, asbestos information, or post-transfer fate.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-520-sc520-01
-
[3]National Archives, Special List No. 44, Ship Number Series, finding aid to U.S. Navy deck logs [other_primary]
- Locator
- PDF p. 105, SC-520 row
- Finding type
- historical_record
- Finding
- The NARA finding aid lists SC-520 deck-log coverage from 1942-10-23 through 1945-11-28.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-10-23 to 1945-11-28
- Population
- Ship's company during the listed log coverage
- Limitations
- Finding aid only; establishes existence and date span of indexed logbooks. No logbook contents reviewed. Does not establish assignments, movements, asbestos conditions, or exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-520-sc520-02
-
[4]NHHC DANFS SC-501-SC-600 page confirms SC-520 as submarine chaser; PC numbering gap corroborated by class reference [other_primary]
- Locator
- SC-520 entry
- Finding type
- vessel_history
- Finding
- PC-520 never existed as a U.S. Navy patrol craft. PC-461-class hull numbering runs PC-451, PC-452, PC-461 through PC-496, then skips to PC-542. The hull in batch 7895 is USS SC-520, an SC-497-class wooden submarine chaser, unnamed in U.S. service.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-06
- Limitations
- Corrects the batch original PC-520 scoping per 2026-09-29 QA re-scope. All batch artifacts use SC-520 identity.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-520-sc520-03
-
[5]CourtListener API v4 via authenticated helper cl-auth-search.py [other_primary]
- Locator
- BATCH-7895-REPORT.md, CourtListener sweep log
- Finding type
- litigation_documented
- Finding
- CourtListener sweep (authenticated helper, 2026-10-06): exact-name USS SC-520 opinion = 0 results; exact-name USS SC-520 docket = 0 results; hull-number SC-520 opinion = 8 results, all name collisions (Kentucky Bar disciplinary cases, railroad and bank litigation, no vessel connection); hull-number SC-520 docket = 1,275 results (high-collision noise, not individually reviewed); asbestos-qualified docket variant owed (fleet pacing). No qualifying asbestos litigation identified.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-06
- Study period
- Search performed 2026-10-06
- Limitations
- Exact-name legs are verified zeros. Hull-number opinion collisions classified by case-name review. Hull-number docket base overflowed (1,275); asbestos variant not completed due to fleet pacing, logged as owed, not as a negative. An incomplete search is not evidence of no record beyond the confirmed legs.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-520-sc520-04
-
[6]Batch 7895 source review, 2026-10-03 through 2026-10-06 [other_primary]
- Locator
- BATCH-7895-REPORT.md, Search limits and negative findings
- Finding type
- historical_record
- Finding
- No ship-specific asbestos survey, abatement contract, or hazmat disclosure was located in the sources searched for this hull.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-06
- Limitations
- A negative search result is not proof of absence. No asbestos condition or exposure conclusion is supported. Wooden hull construction noted as context only, never as an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-sc-520-sc520-05