Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
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[1]research packet 1000-packet.md (3 sources cited) [museum_official]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: MISMATCH (RE-SCOPE signal). Hull and Thailand pairing confirmed; — real identity: RTN *T-20*, Royal Thai Navy, *PGM-39*-class
- Verification
- verified
- Role
- correction
- Documentation level
- ship_specific
- Evidence ID
- uss-pgm-124-pgm124-pkt-1000-packet-md
-
[2]NavSource Online, PGM-124 hull page [other_primary]
- Locator
- PGM-124 page, identification/specifications block
- Finding type
- vessel_history
- Finding
- NavSource identifies this hull as PGM-124, built by Peterson Builders at Sturgeon Bay, Wisconsin; launched 22 June 1970; delivered 6 October 1970; transferred to Thailand and reclassified T-20. It gives 130 tons displacement, 101 feet length, 21.2 feet beam, 8 feet draft, 18.5-knot speed, complement 30, one 40 mm mount, one twin 20 mm mount, two .50-caliber machine guns, and eight 265-hp Detroit Diesel 6-71 engines on two shafts.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1970 onward
- Population
- Thai naval crew and Peterson Builders construction workforce
- Limitations
- NavSource states that no DANFS history is available and lists the fate as unknown. The page is an authoritative naval-history archive rather than a current Royal Thai Navy register; it does not document asbestos content, material locations, exposure, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pgm-124-pgm124-01
-
[3]SeaFarer Naval Museum archive, Thai page for เรือ ต.110 [museum_official]
- Locator
- Page lines/sections for project history, general particulars, and machinery
- Finding type
- historical_record
- Finding
- The Thai naval-archive page for T.110 lists PGM-124 among ten U.S.-built motor gunboats transferred under military assistance and records launch 22 June 1970, delivery to Thailand 6 October 1970, commissioning 14 May 1971, decommissioning 1 October 2014, Peterson Builders as builder, 30.30 m length, 6.40 m beam, 1.70 m draft, 18-knot speed, 146-ton full-load displacement, and 30 crew. The page's designation T.110 conflicts with the NavSource identification of PGM-124 as T-20; the dates and PGM number indicate a likely record-identity problem, not a resolved renaming.
- Verification
- partial
- Role
- correction
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1970-2014
- Population
- Royal Thai Navy crew
- Limitations
- This page is useful archival corroboration but its T.110 designation is internally inconsistent with the requested T-20 identity and with NavSource. It does not establish that the decommissioning date belongs to T-20, and it does not document asbestos, abatement, exposure, or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-pgm-124-pgm124-02
-
[4]U.S. General Accounting Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (1979) [gao]
- Locator
- GAO product page, Highlights and Topics; full report linked there
- Finding type
- asbestos_application
- Finding
- GAO reported that the Navy used asbestos in shipbuilding and ship repair and reviewed policies for removing or replacing asbestos insulation. The report's program-level evidence supports historical context for U.S. naval-vessel work during the era of PGM-124's construction, not a finding that asbestos was installed aboard this hull.
- Verification
- verified
- Role
- context
- Documentation level
- context_only
- Accessed
- 2026-10-04
- Study period
- 1975-1979
- Population
- Navy shipyard workers and naval-vessel maintenance personnel
- Limitations
- GAO's review concerned Navy efforts at Long Beach and Norfolk Naval Shipyards and does not identify PGM-124, the PGM-71 class, Peterson Builders, or any material aboard T-20. No ship-specific asbestos product or quantity is inferred from this row.
- Atlas source
- true
- Evidence ID
- ev-uss-pgm-124-pgm124-03
-
[5]NavSource PGM-124 page; explicit absence of DANFS history and unknown fate [other_primary]
- Locator
- NavSource PGM-124 page; CourtListener helper run log/output in batch session; search ledger below
- Finding type
- historical_record
- Finding
- No publicly available ship-specific asbestos survey, abatement record, or qualifying asbestos-litigation document was located for PGM-124/T-20 in the sources reviewed for this batch. NavSource expressly states that no DANFS history is available for PGM-124; the four required authenticated CourtListener base searches produced no usable result payload or identified hit for classification.
- Verification
- partial
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-04
- Study period
- 1970-2026
- Population
- Potential crew, shipyard, maintenance, and litigation populations
- Limitations
- This is a research-result negative, not proof that no record exists. CourtListener results were not available for independent hit-by-hit text review because the helper returned only authenticated request notices in this session; no asbestos variant was run because the base-query result pages did not establish a high-collision overflow. Firecrawl official-source searching was unavailable because the service reported a multi-hour keyless quota reset, so fallback sources were used and the access gap is disclosed.
- Atlas source
- true
- Evidence ID
- ev-uss-pgm-124-pgm124-04
-
[6]NavSource PGM-124 propulsion and hull specifications [other_primary]
- Locator
- PGM-124 page, Specifications: Propulsion
- Finding type
- asbestos_application
- Finding
- PGM-124 used a diesel propulsion plant rather than a steam plant: eight Detroit Diesel 6-71 engines driving two shafts. Any asbestos-relevant materials aboard this hull remain undocumented; no boiler or steam-lagging claim is made.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-04
- Study period
- 1970 onward
- Population
- Crew and maintenance personnel
- Limitations
- The propulsion fact is ship-specific, but the asbestos implication is deliberately limited to an absence of steam-plant inference. The source does not identify gasket, packing, insulation, electrical, or other asbestos-containing products aboard this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-pgm-124-pgm124-05