Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
-
[1]National Archives, Ship Plan Index, Chiquito / YTB-499 entries [other_primary]
- Locator
- Chiquito YTB-499 rows: RG 38 Trial Curves, catalog 12451237 (listed twice); RG 19 Microfilm, catalog 175668684
- Finding type
- vessel_history
- Finding
- NARA's Ship Plan Index identifies Chiquito as YTB-499 and lists two trial-curve index rows in Record Group 38 and one microfilm ship-engineering-drawing index row in Record Group 19.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- NARA holdings index, accessed 2026-09-24
- Limitations
- Index entries establish hull identity and archival holdings only. The underlying trial curves and drawings were not retrieved; their propulsion, insulation, or material contents are unknown.
- Atlas source
- true
- Evidence ID
- ev-uss-chiquito-ytb499-01
-
[2]Department of the Navy, Navy and Marine Corps Awards Manual (1953), Part IV, section 17, vessel eligibility table; HyperWar transcription of the Navy publication [other_primary]
- Locator
- Part IV, section 17, page 170, Chiquito (YTB 499) row
- Finding type
- historical_record
- Finding
- The Navy and Marine Corps Awards Manual lists Chiquito (YTB 499) as eligible for Navy Occupation Service Medal service from 11 July 1946 through 25 April 1947 with Asia clasp, and China Service Medal service from 7 June through 9 July 1946.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1946-1947
- Limitations
- A transcription of an official Navy manual was inspected; the original printed page was not independently scanned. Medal eligibility periods do not prove a precise operating location on every listed day and say nothing about onboard materials or exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-chiquito-ytb499-02
-
[3]Naval History and Heritage Command, DANFS, Liberty III (AGTR-5) [nhhc_danfs]
- Locator
- Search-index excerpt surrounding Liberty's 21 March 1966 arrival and the paragraph beginning 'Three days later, Chiquito'; live NHHC URL returned HTTP 404
- Finding type
- vessel_history
- Finding
- The indexed NHHC DANFS entry for Liberty (AGTR-5) says Chiquito (YTB-499) and Chohonaga moved Liberty from a Norfolk Naval Station berth toward the U.S. Army Terminal three days after Liberty arrived on 21 March 1966.
- Verification
- partial
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 1966-03
- Limitations
- The excerpt is indexed from an official NHHC history, but the live page could not be opened at verification time. It supports a limited 1966 tug-operation statement, not Chiquito's complete service timeline, material composition, or an asbestos finding.
- Atlas source
- true
- Evidence ID
- ev-uss-chiquito-ytb499-03
-
[4]U.S. Government Accountability Office, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (1979), highlights [gao]
- Locator
- Highlights, paragraphs describing 1975 and 1979 Navy insulation policies
- Finding type
- historical_record
- Finding
- GAO's 1979 review describes Navy policy concerning asbestos insulation on Navy ships, including the 1975 policy to replace damaged insulation or insulation removed for necessary repairs and a 1979 expansion for high-maintenance areas.
- Verification
- verified
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-09-24
- Study period
- 1975-1979
- Population
- Navy shipyard workers and vessels discussed by GAO, not Chiquito-specific
- Limitations
- Program-level Navy evidence only. The GAO highlights do not name Chiquito, her tug class, or any installed material; no asbestos content, location, quantity, worker exposure, or causation can be inferred for this hull.
- Atlas source
- true
- Evidence ID
- ev-uss-chiquito-ytb499-04
-
[5]National Archives, Researching Asbestos aboard US Naval Vessel up through 1961; Ship Plan Index [other_primary]
- Locator
- Cartographic Branch section, S39/S48 and RG 19 microfilm guidance; Chiquito index entry at https://www.archives.gov/research/cartographic/ship-index
- Finding type
- historical_record
- Finding
- NARA's asbestos-research guide identifies RG 19 ship engineering drawings and microfilm as sources to inspect for insulation and lagging, especially S39 insulation and lagging and S48 piping codes. NARA's Ship Plan Index names a Chiquito YTB-499 RG 19 microfilm holding, catalog 175668684.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- context_only
- Accessed
- 2026-09-24
- Study period
- 1945-era plans; index reviewed 2026-09-24
- Limitations
- A targeted retrieval path, not an inspected Chiquito drawing. The index does not say whether the microfilm contains S39 or S48 sheets or any asbestos specification.
- Atlas source
- true
- Evidence ID
- ev-uss-chiquito-ytb499-05
-
[6]Batch 9420 source inspection and search ledger: NARA Ship Plan Index; Navy and Marine Corps Awards Manual; NHHC Liberty III indexed excerpt; authenticated CourtListener API v4 search results [other_primary]
- Locator
- search_ledger rows sl-uss-chiquito-ytb499-01 through sl-uss-chiquito-ytb499-11
- Finding type
- historical_record
- Finding
- No ship-specific asbestos statement appears in the Chiquito rows of the NARA Ship Plan Index, the Chiquito row of the Navy awards manual, or the indexed NHHC Liberty excerpt reviewed in this batch. Authenticated CourtListener v4 searches for the exact vessel name USS Chiquito, original hull YTB-499, and alternate hull YTM-765 returned no opinion or docket results; broader Chiquito hits were non-vessel collisions.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-24
- Study period
- 2026-09-24
- Limitations
- A bounded search result, not proof that asbestos was absent or that no unindexed case exists. Broad Chiquito opinion hits were classified by available search metadata; the underlying NARA microfilm was not inspected.
- Atlas source
- true
- Evidence ID
- ev-uss-chiquito-ytb499-06