Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
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[1]research packet 910-packet.md (3 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-malvern-pc580-pkt-910-packet-md
-
[2]DANFS, 'Malvern IV (PC-580)' entry - archived Wayback Machine capture of the Naval Historical Center page (history.navy.mil/danfs/m2/malvern-iv.htm); the current NHHC site does not serve this entry (404s verified 2026-10-03 across candidate URLs) [nhhc_danfs]
- Locator
- DANFS 'Malvern IV' entry, spec block + service narrative (archived capture dated 2005-01-11)
- Finding type
- vessel_history
- Finding
- DANFS record for this hull: the entry's etymology paragraph derives the name Malvern from Malvern Hill, a plateau on the northern bank of the James River and the site of the final battle of the Seven Days (1 July 1862). The fourth Malvern was laid down as PC-580 by Albina Engine & Machinery Works, Inc., Portland, Oreg., 22 January 1942; launched 29 April 1942; and commissioned 26 September 1942, Lt. Comdr. Alvin W. Slayden in command. PC-580 trained officers and sonar men in antisubmarine warfare throughout World War II and participated with the Pacific Fleet in patrol and convoy operations between the Hawaiian Islands and the west coast through 1945. She then spent 14 years off Key West, Fla., and Norfolk, Va., as a training ship for the Fleet Sonar School, except a 1948 period of training maneuvers out of Corpus Christi, Tex.; named Malvern 15 February 1956; brief Guantanamo Bay cruises 1957-58; decommissioned 27 March [1958] and entered the Atlantic Reserve Fleet at Green Cove Springs, Fla.; transferred under the Military Assistance Program to the Republic of Indonesia 17 March 1960; 'Into 1969 she serves Indonesia as Hiu.' Spec block: dp. 280; l. 173'8"; b. 23'; dr. 6'5"; s. 20.2 k.; cpl. 59; a. 1 3", 1 40mm., 5 20mm., 2 dct., 2 dcp.; cl. PC-461. The vessel was unnamed (designated PC-580) for its entire commissioned career until the 1956 naming program.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1969
- Population
- Albina Engine & Machinery Works construction trades 1942; wartime and postwar crew (DANFS complement 59)
- Limitations
- DANFS documents service history and specifications, not materials or asbestos content. The live NHHC site does not serve this DANFS entry - this is an archived Wayback capture of the Naval Historical Center original, cited as archived per batch citation rules. DANFS gives the decommissioning date as '27 March' without repeating the year; 1958 is established by NavSource and corroborating references.
- Atlas source
- true
- Evidence ID
- ev-uss-malvern-pc580-01
-
[3]NavSource Online: Submarine Chaser Photo Archive, 'Malvern (PC-580) ex-PC-580' page (verified live 2026-10-03 at navsource.net) [other_primary]
- Locator
- NavSource PC-580 page, timeline block, specifications block, photo captions, commanding-officer table
- Finding type
- vessel_history
- Finding
- NavSource photographic and timeline record for this hull: PC-461 class submarine chaser; laid down 22 January 1942 by Albina Engine and Machinery Works Inc., Portland, Oregon; launched 29 April 1942; commissioned USS PC-580 26 September 1942; named Malvern 15 February 1956; decommissioned 27 March 1958 at Green Cove Springs, Florida, and laid up in the Atlantic Reserve Fleet, Florida Group; transferred under the Military Assistance Program to Indonesia 17 March 1960 and renamed Hiu (PC 317); decommissioned (Indonesian service) 1980; fate unknown. Specifications: displacement 280 t. light / 450 t. full; length 173'8"; beam 23'; draft 10'10"; speed 20.2 kts.; complement 65; armament one 3"/50 dual-purpose mount, one 40mm mount, three 20mm guns, two rocket launchers, four depth charge projectors, two depth charge tracks; propulsion two 1,440 bhp Fairbanks Morse 38D8 1/8 diesel engines (Serial Nos. 832279 and 832280), Westinghouse single reduction gear, two shafts. Photo captions document trials at ~19 knots in the Columbia River near Portland 22 September 1942 (NHHC photo NH 86360) and underway refueling from LSM-495 while en route to the Panama Canal; a fourteen-officer commanding-officer list runs 1942-1958.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1980
- Population
- Wartime and postwar crew; Indonesian Navy crew 1960-1980
- Limitations
- NavSource is a volunteer photo-archive aggregator - detailed and photographically documented but a secondary compilation, not a government record; dates agree with DANFS. Contains no asbestos information. Complement (65) and draft (10'10") differ from the DANFS spec block (59; 6'5") - carried in gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-malvern-pc580-02
-
[4]NavSource Submarine Chaser Photo Index class essay (173' steel-hull PC type) + DANFS spec block for this hull [other_primary]
- Locator
- NavSource class index essay (173' steel-hull type: steel-hulled, twin diesel propelled); NavSource PC-580 specifications block
- Finding type
- asbestos_application
- Finding
- Era/class inference: PC-580 is a steel-hulled 173-foot PC-461-class submarine chaser built January-September 1942 with a twin diesel plant (two 1,440 bhp Fairbanks Morse 38D8 1/8 engines, two shafts - no boilers or steam propulsion). A warship built to 1942 Navy construction standards would have carried period-standard asbestos applications in machinery spaces - engine and exhaust lagging, thermal insulation, gaskets and packing, and electrical insulation - but the diesel plant eliminates the boiler/turbine lagging that dominates steam-vessel asbestos loading.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1942-1980
- Population
- Albina construction trades 1942; crew 1942-1958; Indonesian crew 1960-1980
- Limitations
- Class/era inference only - no source names asbestos aboard this specific hull. Absence of a steam plant reduces, but does not eliminate, the era-typical asbestos applications. Product identification and quantities aboard are unknown. This row contextualizes; it is not a ship-specific finding.
- Atlas source
- true
- Evidence ID
- ev-uss-malvern-pc580-03
-
[5]McAllister v. Lockheed Shipbuilding, Benefits Review Board No. 04-0887 (Aug. 19, 2005); Albina Engine & Machine v. Director, Office of Workers' Compensation Programs, 627 F.3d 1293 (9th Cir. 2010), No. 09-70592 [court_record]
- Locator
- DOL Benefits Review Board published decision 04-0887 (fact recital); 9th Cir. opinion, 627 F.3d 1293 (stipulations and holding)
- Finding type
- litigation_documented
- Finding
- Yard-level asbestos litigation naming the builder of this hull: James McAllister worked as a shipyard carpenter for three Portland/Seattle-area employers 1956-1960, including Albina Engine & Machine (Portland) in 1956; the parties stipulated that his 2002 death was due to mesothelioma caused by exposure to asbestos during his maritime employment. The LHWCA dispute concerned which employer was 'last responsible'; the Ninth Circuit ultimately assigned benefit liability to Lockheed Shipbuilding, not Albina.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1956-1960 (employment); 2002 (death); 2004-2010 (adjudication)
- Population
- Shipyard carpenter, Portland/Seattle yards, 1956-1960 (mesothelioma, d. 2002)
- Limitations
- Documents asbestos-related occupational exposure in the Portland shipyard industry including this builder's yard, with a stipulated mesothelioma death - but the decedent's Albina employment window was 1956, fourteen years after this hull's 1942 construction, and the Ninth Circuit assigned liability to a different employer (Lockheed). This is yard-level litigation context, not evidence about materials aboard PC-580.
- Atlas source
- true
- Evidence ID
- ev-uss-malvern-pc580-04
-
[6]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships and did not begin substituting alternative insulation materials until the early 1970s - spanning this hull's construction (1942), U.S. service (1942-1958), and MAP transfer (1960).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- through early 1970s
- Population
- Navy shipyard workers and crews, program-wide
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403, consistent with Batch-98 findings) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-malvern-pc580-05
-
[7]NavSource photo captions citing Naval History and Heritage Command photos NH 86360 (Albina-built PC-580 trials in the Columbia River, 22 September 1942) and NH 85411 (USS PC-580, c. 1956); NARA RG 24 deck-log series (NARA 'Navy Deck Logs Available' digitization program, archives.gov) [other_primary]
- Locator
- NavSource PC-580 photo table (NH 86360, NH 85411); https://www.archives.gov/research/military/logbooks/navy-online
- Finding type
- historical_record
- Finding
- Archival leads for hull-level records: NHHC photographs NH 86360 and NH 85411 are documented in NavSource captions (a builder's-yard trials photo and a 1956-era Navy photo); PC-580's 1942-1958 deck logs reside in the NARA RG 24 deck-log series, which NARA is digitizing in batches (Blue Water Navy/VA scan program).
- Verification
- partial
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1958
- Population
- Crew 1942-1958
- Limitations
- Neither the NHHC photos nor the deck logs have been pulled; photo content is captioned only. Deck-log digitization status for this hull specifically is unverified (the NARA catalog front end is JavaScript-rendered and not programmatically checkable this session). Logs would document operations, not materials.
- Atlas source
- true
- Evidence ID
- ev-uss-malvern-pc580-06
-
[8]Batch-7955 search ledger (this record): DANFS (archived); NavSource (live); NVR (pre-1987 disposal not covered); DOL BRB published decisions; secondary web litigation sweep; CourtListener base queries [other_primary]
- Locator
- search_ledger rows sl-uss-malvern-pc580-01 through sl-uss-malvern-pc580-11
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or docketed case naming PC-580 or Malvern was found in the public sources searched (see search_ledger). CourtListener: "USS Malvern" opinions and dockets both returned 0; "PC-580" returned only non-maritime token collisions (Indiana post-conviction docket codes, law-firm 'PC' suffixes, insurance-form references) - every hit reviewed and classified non-qualifying.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - a 1942-built warship is consistent with retained era materials, but this hull was disposed of abroad and its material condition is undocumented. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-malvern-pc580-07