Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
-
[1]research packet 1000-packet.md (2 sources cited) [museum_official]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: MISMATCH (RE-SCOPE signal, same reasoning as batch — real identity: NPa *Poti* (P-15), Marinha do Brasil,
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Evidence ID
- uss-built-in-brazil-as-pgm121-pkt-1000-packet-md
-
[2]Navios de Guerra Brasileiros, NPa/NaPaCo Poti (P-15), historical record and specifications [other_primary]
- Locator
- Poti record: summary dates/specifications and historical paragraphs for 1968-1971, 1992-2014
- Finding type
- vessel_history
- Finding
- The Poti (P-15) record identifies this hull as ex-PGM-121, the second Brazilian Navy ship named Poti; it was built at AMRJ in Rio de Janeiro under a Cape-class-derived design and funded through Foreign Military Sales. The page records launch on 1971-03-12, construction completion on 1971-10-20, and incorporation on 1971-10-29. It also records 105-ton loaded displacement, 28.95 m length, 6.10 m beam, 1.90 m draft, four Cummins VT-12M diesel engines totaling 1,100 bhp on two shafts, 19-knot maximum speed, and a 16-person crew. The chronology records coastal patrol and exercises in the 1980s, transfer to the 6th Naval District and Mato Grosso Flotilla in 1992, reclassification as a patrol ship in 1993, and riverine, border, civic-assistance, and multinational operations through 2014, including APERIPÉ, COSTEIREX, PLATINA, RIBEIREX-PANTANAL, AGATA, NINFA, CÁCERES, and COMBINEX-OESTE.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1968-2014
- Population
- Brazilian Navy crew and shipyard personnel; 16-person complement
- Limitations
- Specialist naval-history record, not a shipyard construction file or asbestos survey. The same page gives two keel dates (1968-12-30 in the summary and 1968-10-30 in the narrative); both are disclosed rather than reconciled. Its service chronology ends in 2014 and does not establish current status or final disposal.
- Atlas source
- true
- Evidence ID
- ev-uss-built-in-brazil-as-pgm121-01
-
[3]Marinha do Brasil, Meios Navais, official fleet listing [other_primary]
- Locator
- Meios Distritais section: Navios-Patrulha, Classe Piratini, P10-P15
- Finding type
- vessel_history
- Finding
- The official Brazilian Navy fleet listing places Poti (P-15) among the Piratini-class patrol ships under the Mato Grosso Flotilla grouping.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- page updated 2026-05-19; historic P-15 identity
- Population
- Brazilian Navy fleet organization
- Limitations
- Current organizational listing confirms the identity and class/pennant association but does not provide construction dates, asbestos information, or a disposal date. It is not evidence that the hull remains active today; the page's surrounding fleet list is current while this historic P-15 entry is a class listing.
- Atlas source
- true
- Evidence ID
- ev-uss-built-in-brazil-as-pgm121-02
-
[4]NavSource Naval History, Motor Gunboat Index, PGM-118 to PGM-121 [other_primary]
- Locator
- Brazilian Piratini Class Motor Gunboat (Continued), PGM-118 to PGM-121, PGM-121 line
- Finding type
- vessel_history
- Finding
- The NavSource index maps PGM-121 to Poti (P-15), under its Brazilian Piratini-class motor-gunboat grouping, and states that PGM-121 was built in Brazil.
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1968-1971 identity cross-reference
- Population
- U.S. accounting hull designation and Brazilian Navy identity
- Limitations
- Index-level identity cross-check only; it does not supply a ship-specific asbestos finding, construction file, service chronology, or final disposition. NavSource is used as a corroborating naval-history index, not as evidence of asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-built-in-brazil-as-pgm121-03
-
[5]U.S. General Accounting Office, HRD-80-2, Navy Efforts To Protect Workers From Asbestos Exposure (1979) [gao]
- Locator
- GAO HRD-80-2 highlights and full-report summary, Navy policy/use sections
- Finding type
- asbestos_application
- Finding
- GAO reports that Navy officials said ships contained some asbestos in components including clutches and electric cables, that thermal insulation was the Navy's major asbestos use aboard ships, and that the Navy issued an October 1975 policy eliminating asbestos as an acceptable material for thermal insulation where suitable alternatives existed.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1975-1979 policy and review period
- Population
- U.S. Navy ships and naval shipyard workers
- Limitations
- Program-level U.S. Navy evidence, not a survey of PGM-121, the Brazilian Navy, AMRJ, or the Piratini class. It supports only era context; it cannot establish that any listed product was installed aboard Poti or remained aboard at any later date.
- Atlas source
- true
- Evidence ID
- ev-uss-built-in-brazil-as-pgm121-04
-
[6]Arquivo Arquivístico da Marinha do Brasil, collection search result for Navio-Patrulha Poti [other_primary]
- Locator
- Collection browse/search result, collection=1985
- Finding type
- historical_record
- Finding
- The Brazilian Navy archival portal exposes a collection search result for 'Navio-Patrulha Poti', identifying the official archive as a lead for primary Poti records.
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- not established
- Population
- Brazilian Navy archival holdings
- Limitations
- The collection search page was not retrievable in the live fetch used for this record, so no document, date, material specification, survey, or disposition fact is asserted from it. It remains an archival lead only.
- Atlas source
- true
- Evidence ID
- ev-uss-built-in-brazil-as-pgm121-05
-
[7]Poti (P-15) historical chronology, 1971-2014 [other_primary]
- Locator
- Poti chronology and specifications reviewed in full; no asbestos/abatement/material entry located
- Finding type
- asbestos_application
- Finding
- No ship-specific asbestos survey, abatement contract, hazmat disclosure, insulation inventory, material specification, or other asbestos record was located in the Poti-specific sources reviewed. The located Poti chronology documents patrol, training, riverine, and border operations through 2014 but does not mention asbestos.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1971-2014
- Population
- Poti crew, maintenance personnel, and later custodial personnel
- Limitations
- This is a bounded negative finding, not proof that asbestos was absent. The chronology is not a complete technical or environmental file; the absence of an asbestos mention cannot establish the materials aboard, their condition, removal history, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-built-in-brazil-as-pgm121-06
-
[8]CourtListener authenticated search sweep: exact-name and hull-number base queries [court_record]
- Locator
- Authenticated helper output and search_ledger rows sl-uss-built-in-brazil-as-pgm121-06 through -09
- Finding type
- litigation_documented
- Finding
- No litigation conclusion is drawn. The required base queries were submitted through the authenticated helper: Poti/opinion returned 20 of 161 high-collision-name results, all reviewed results were unrelated cases; Poti/docket, PGM-121/opinion, and PGM-121/docket were blocked by the fleet pacing gate before CourtListener returned results.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 2026-10-04 search session
- Population
- CourtListener opinions and RECAP dockets
- Limitations
- This is not a negative litigation result. The Poti opinion page overflowed and the allowed 'Poti asbestos' variant was not run because the fleet pacing gate blocked continuation. CourtListener access is an explicit research gap; no asbestos case is included or excluded for this hull on the basis of the blocked queries.
- Atlas source
- true
- Evidence ID
- ev-uss-built-in-brazil-as-pgm121-07