Evidence
5 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-5).
-
[1]NavSource Online, PC-461 class index, PC-779 Mechanicsburg entry [other_primary]
- Locator
- PC-461 Class - Continued section; PC-779 Mechanicsburg entry
- Finding type
- vessel_history
- Finding
- The live NavSource PC-461 class index identifies PC-779 as Mechanicsburg and places it in the PC-461 class continuation list. The index describes the 173-foot steel-hulled PC/SC group and links a hull-specific PC-779 page.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1945
- Population
- Navy personnel and construction workforce
- Limitations
- The index establishes identity and class context but does not provide the full hull timeline, complement, propulsion, or asbestos information. The linked hull page was reachable by URL but returned HTTP 406 to the Studio-side fetch; no claim from its unverified body is carried here.
- Atlas source
- true
- Evidence ID
- ev-uss-mechanicsburg-pc779-01
-
[2]Naval Sea Systems Command, Ship History, 28 June 2011, inactive-ship history table [other_primary]
- Locator
- Inactive-ship history table, PC 0779 row
- Finding type
- vessel_history
- Finding
- The official inactive-ship history table lists PC 0779, MECHANICSBURG, removal from Navy records on 15 September 1959 and final disposition as SCRAP SALE.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1959
- Population
- Navy custody and disposal personnel
- Limitations
- The official PDF URL was live but returned HTTP 403 to the Studio-side fetch; the table entry was independently surfaced in the live-web result excerpt. The document does not establish asbestos content, the scrapping contractor, or the date of decommissioning.
- Atlas source
- true
- Evidence ID
- ev-uss-mechanicsburg-pc779-02
-
[3]Oregon Department of Environmental Quality, ECSI Site ID 689, Zidell Waterfront Property / former Commercial Iron Works yard [other_primary]
- Locator
- ECSI detail page, site history and contamination information
- Finding type
- environmental_record
- Finding
- Oregon DEQ documents asbestos among contaminants at the former Commercial Iron Works/Zidell waterfront property in Portland. The site history includes Commercial Iron Works shipbuilding before the property was acquired by Zidell in 1946 and later ship dismantling.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- pre-World War II through cleanup period
- Population
- Commercial Iron Works and later waterfront workers
- Limitations
- Yard-level environmental evidence, not a vessel record. The site accumulated contamination from multiple decades of shipbuilding, repair, dismantling, and fill; the record cannot attribute asbestos to PC-779's 1942-1943 construction or establish material aboard this hull, individual exposure, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-mechanicsburg-pc779-03
-
[4]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (1979) [gao]
- Locator
- GAO product page HRD-80-2; full text blocked with HTTP 403
- Finding type
- gov_survey
- Finding
- GAO's Navy asbestos-program review describes extensive Navy use of asbestos insulation aboard ships and the later transition toward substitute materials, providing era context for a 1943 Navy craft.
- Verification
- partial
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1979 review of prior Navy practices
- Population
- Navy shipyard and shipboard workers
- Limitations
- Program-level evidence only. The GAO full-text page returned HTTP 403 to automated retrieval; the product-page description is the available official material. This row does not establish that asbestos was installed aboard PC-779 or identify any product, quantity, location, or exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-mechanicsburg-pc779-04
-
[5]CourtListener authenticated search sweep required by batch protocol [court_record]
- Locator
- CourtListener helper submissions/attempt; see search_ledger rows -01 through -04
- Finding type
- litigation_documented
- Finding
- No qualifying asbestos-litigation hit was verified for USS Mechanicsburg or PC-779. All four required base requests were submitted or attempted through the authenticated helper, but the fleet-wide limiter returned no reviewable result JSON in the session window; therefore no hit or zero-result classification can be made.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- through 2026-10-03
- Population
- Potential plaintiffs and defendants in public CourtListener records
- Limitations
- This is an incomplete search result, not a finding that no litigation exists. No asbestos-qualified variant was run because the base queries did not produce a verified 20-result overflow. The gap is logged in the report and search ledger; no litigation allegation is carried into the record.
- Atlas source
- true
- Evidence ID
- ev-uss-mechanicsburg-pc779-05