Evidence
8 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-8).
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[1]research packet 576-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-lsm-427-lsm427-pkt-576-packet-md
-
[2]NavSource Online: Amphibious Photo Archive, USS LSM-427 - construction/milestones/specs/commanding-officer table (history extract from 'LSM-LSMR Amphibious Forces,' Vol. II, Turner Publishing Co., 1997, ISBN 1-56311-389-9) [other_primary]
- Locator
- NavSource 10/14/14427.htm - full page incl. spec block, awards block, CO table, photo captions
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down 22 November 1944 at Dravo Corporation, Wilmington, DE; launched 6 January 1945; commissioned USS LSM-427 on 2 February 1945, LT. Don L. Garver USNR in command. WWII service in the Asiatic-Pacific Theater assigned to LSM Flotilla Thirteen (LCDR C. L. Weigle USN), LSM Group Thirty-Nine (LCDR J. M. Rose), LSM Division Seventy-Eight. Post-war occupation service in the Far East 12 January - 19 July 1946. Decommissioned 16 August 1946 at NOB Subic Bay, Philippines; struck from the Naval Register, date unknown; sold 13 February 1948 to the Republic of China; final disposition fate unknown. Specs: 520 t. light / 743 t. landing / 1,095 t. full; 203'6" oa; beam 34'6"; 13.2 kts; complement 5 officers + 54 enlisted; 2 Fairbanks Morse 38D8-1/8x10 diesels, 1,440 BHP each @ 720 rpm, twin propellers 2,800 shp; 1 twin bow 40mm + 4 single 20mm. Awards shown: American Campaign Medal, Asiatic-Pacific Campaign Medal, WWII Victory Medal, Navy Occupation Service Medal (Asia clasp). CO table: Garver (2 Feb 1945 - 11 Dec 1945), LTjg John F. Garland (11 Dec 1945 - 21 Apr 1946), ENS James W. Wallace (21 Apr 1946 - 16 Aug 1946). Photographs document the launch, a Panama Canal transit (Gatun Lake), and beaching in Japan alongside LSM-453 during occupation duty.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 1944-1948
- Population
- Dravo Wilmington construction trades (1944-45); crew (1945-46); embarked troops/vehicle crews
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry; the embedded history is extracted from a Turner Publishing veterans' volume, not DANFS (no DANFS entry exists for this hull - NHHC page 404s). Milestone dates corroborated by NHHC and uboat.net rows. No asbestos or material content. The launch photo caption reads '6 January 1946' - an internal typo vs. the 6 January 1945 timeline entry (commissioned Feb 1945); see gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-427-lsm427-01
-
[3]NHHC, 'United States Pacific Fleet Organization, 1 May 1945' - LSM 427 listed under LSM Division 78, LSM Group 39 (ComLSMGrp 39 Lt. Cdr. J. M. Rose, USNR), LSM Flotilla Thirteen [other_primary]
- Locator
- Pacific Fleet Organization 1 May 1945, LSM Flotilla Thirteen / Group 39 / Division 78 table row 'LSM 427'
- Finding type
- historical_record
- Finding
- Official Navy document places this hull in the Pacific Fleet amphibious organization as of 1 May 1945: 'LSM 427' is listed under LSM DIVISION 78 (with LSM 424, 425, 426, 428, 429), under LSM GROUP 39 (ComLSMGrp 39, Lt. Cdr. J. M. Rose USNR), under LSM FLOTILLA THIRTEEN - corroborating the NavSource unit assignment and confirming the hull in active Pacific service during the Okinawa-period organization.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 1945-05-01
- Population
- Crew of LSM-427 (May 1945)
- Limitations
- Ship-specific presence in an official organization table only; establishes unit assignment at a point in time, not operations performed, locations beached, or any material/exposure fact. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-427-lsm427-02
-
[4]uboat.net Allied Warships, USS LSM 427 (LSM 427) - milestone table [other_primary]
- Locator
- uboat.net ship 13014 milestone table; navypedia.org/ships/usa/us_aws_lsm.htm row LSM427
- Finding type
- vessel_history
- Finding
- Independent milestone corroboration for this hull: built by Dravo Corp. (Wilmington, Delaware); ordered 8 April 1944; laid down 22 November 1944; launched 6 January 1945; commissioned 2 February 1945; end service 16 August 1946 ('Decommissioned'); sold 13 February 1948. navypedia.org LSM table independently carries 'LSM427 - Dravo, Wilmington - 1944 / 1945 / comm. 2.1945 - to China 2.1948.'
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 1944-1948
- Population
- Dravo Wilmington trades; crew
- Limitations
- Volunteer-compiled secondary databases; consistent with NavSource/NHHC but not primary registries. 'End service 16 Aug 1946' is the decommissioning; neither source gives the stricken date. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-427-lsm427-03
-
[5]U.S. Navy, LSM Class Manual (ship's organization and machinery manual), Serial No. 1766, 1 March 1944, issued to USS LSM-294 - scanned chapter PDFs hosted by NavSource (contributor Patrick Blackman) [other_primary]
- Locator
- NavSource LSM class manual index + chapter PDFs lsm02-30, lsm02-31, lsm02-31-9, lsm02-32, lsm02-39, lsm02-41, lsm01-01 (OCR reviewed 2026-10-01)
- Finding type
- vessel_history
- Finding
- The period class manual documents the machinery and systems fit of the LSM-1 type: diesel main propulsion (Fairbanks Morse engines), diesel-driven ship's-service generators, pumps/tanks/piping systems, ventilating system, refrigeration plants, and - notable for a landing craft - a small oil-fired water-tube auxiliary steam boiler (ch. 31-9, in Auxiliary Machinery). OCR review of the machinery-bearing chapters (30 Main Propelling Machinery, 31 Auxiliary Machinery incl. 31-9 Boilers, 32 Pumps/Tanks/Piping, 39 Ventilating, 41 Compartmentation, 01-1 General Data) found NO insulation-material or asbestos specification - the manual is organizational/operational, not a construction-materials schedule.
- Verification
- partial
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-01
- Study period
- 1944 (manual date); design-era fit
- Population
- Class-wide: crews and builders of LSM-1-class ships
- Limitations
- Class document issued to LSM-294, not this hull; establishes the type's machinery fit (including that an auxiliary steam boiler - a lagging-relevant component - was part of the design), not materials installed on LSM-427. Absence of insulation specifications in these chapters is not evidence about asbestos aboard; it means this source cannot answer the question either way. OCR of a 1944 image scan - text is partial-quality; verification partial.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-427-lsm427-04
-
[6]Era inference built on: NavSource specifications (Fairbanks Morse diesel plant, ship's-service diesel generators, auxiliary boiler per class manual); NavSource class index (558 LSM/LSM(R) built 1944-45); GAO HRD-80-2 Navy asbestos-era documentation (ev-06) [other_primary]
- Locator
- NavSource spec block + class index; class manual chapters; GAO HRD-80-2 product page
- Finding type
- asbestos_application
- Finding
- An LSM-1-class landing ship built November 1944 - February 1945 sits squarely inside the Navy's documented asbestos-use era. Era-standard applications aboard a vessel of this type and period were thermal insulation and lagging on diesel exhaust runs and the auxiliary boiler, flange gaskets, valve and machinery packing, electrical insulation, and brake linings on winches/windlass. The ship was austere amphibious construction with minimal accommodation insulation compared with a combatant - but the machinery spaces of a 1944-45 diesel warship remained an era-consistent asbestos environment.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-01
- Study period
- 1944-1948
- Population
- Dravo Wilmington construction trades (1944-45); crew (1945-46); ROC Navy crew post-1948
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for LSM-427. Names era-standard applications, not confirmed installed materials; no quantity; no manufacturer attribution. The class manual's machinery chapters specify no insulation materials, so even the class-document base is thin here.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-427-lsm427-05
-
[7]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (full text blocked, HTTP 403)
- 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 entire USN construction and service era (1944-46) and her building yard's wartime output.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-01
- Study period
- 1979 (report); era context 1944-46
- Population
- Navy shipyard workers; asbestos program review
- 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, confirmed 2026-10-01) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-427-lsm427-06
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[8]Batch-6236 search ledger (this record): NHHC DANFS (no entry exists); NHHC Pacific Fleet organization; NavSource ship page + class index + class manual OCR; uboat.net; navypedia; NVR (no entry - pre-1987 disposal); CourtListener API v4 authenticated (type=o and type=r, 'LSM-427'); NARA deck-log digitization; secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-lsm-427-lsm427-01 through -11
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or litigation naming USS LSM-427 was found in the public sources searched. CourtListener authenticated searches returned zero results - type=o 'LSM-427' count 0, type=r 'LSM-427' count 0 (both HTTP 200, 2026-10-01). Secondary web sweeps surfaced only law-firm marketing content (asbestos-ships.com 'USS LSM-427 and Asbestos Exposure' page and similar listicles) asserting asbestos without primary sourcing - excluded by source policy.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-01
- Study period
- 2026-10-01
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - a WWII hull sold to the Republic of China in 1948 has no plausible modern survey trail in US sources. ROCN service and final disposition are undocumented. Deck logs (RG 24) and Dravo Wilmington work packages are undigitized leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-427-lsm427-07