Evidence
10 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-10).
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[1]research packet 590-packet.md [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED (secondary fallback)
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Limitations
- qualifier: VERIFIED (secondary fallback)
- Evidence ID
- uss-lsm-548-lsm548-pkt-590-packet-md
-
[2]NavSource Online: Amphibious Photo Archive, USS LSM-548 page - milestone timeline, LSM-1 class specifications, commanding officer, awards block, and photo captions (history extract sourced from LSM-LSMR Amphibious Forces, Vol. II, Turner Publishing 1997) [other_primary]
- Locator
- NavSource 10/14/14548.htm header block, specifications block, and photo captions
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down and launched 'date unknown' at Brown Shipbuilding Co., Houston, TX; commissioned USS LSM-548, 2 February 1946, LTjg. Walter J. Aring, USNR, in command; decommissioned 31 July 1946 at Green Cove Springs, FL; laid up in the Atlantic Reserve Fleet, Florida Group, Green Cove Springs; struck from the Naval Register, date unknown; transferred 11 February 1959 to Venezuela and named ARV Los Monjes (T-13); decommissioned by the Venezuelan Navy and struck from the Venezuelan Navy list 1978/79; final disposition - sunk as a target 3 September 1979 off the coast of Venezuela. Awards block: American Campaign Medal, World War II Victory Medal. Spec block: 520 t. light / 743 t. landing / 1,095 t. full; 203'6" x 34'6"; 13.2 kt; complement 5 officers + 54 enlisted; one twin bow-mounted 40mm gun, four single 20mm mounts; two General Motors 16-278A diesels, direct drive, 1,440 BHP each at 720 rpm, twin propellers, 2,800 shp; capacity 5 medium or 3 heavy tanks / 6 LVT / 9 DUKW; troops 2 officers + 46 enlisted. Photo captions: Brown Shipbuilding completion photo under way off Houston, TX, 6 February 1946 (USS LSM/LSMR Association); a nest photo with USS LSM-547; an official Venezuelan Navy photo of ARV Los Monjes (T-13) underway circa 1970.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1945-1979
- Population
- Brown Shipbuilding construction trades (1945); USN crew Feb-Jul 1946; Venezuelan Navy crews 1959-1979
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry - milestone dates generally track official records and here are corroborated by the Brown yard table (ev-02) except where noted in gaps. Contains no asbestos content. Laid-down/launched dates are not given on this page (supplied by ev-02/ev-03).
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-548-lsm548-01
-
[3]shipbuildinghistory.com (Colton), Brown Shipbuilding Houston TX yard table - complete hull-by-hull production list compiled from yard/Navy records [other_primary]
- Locator
- shipbuildinghistory.com Brown yard table, hull 355 row
- Finding type
- vessel_history
- Finding
- Brown Shipbuilding yard hull no. 355 = LSM 548 (Landing Ship): keel laid 14 July 1945, launched 25 August 1945, delivered 2 February 1946; disposition 'Laid up 1947, to Venezuela 1959 ... sunk as target 1979'. Yard context: Brown Shipbuilding was built in 1941 by George and Herman Brown at the junction of Green's Bayou and the Houston Ship Channel with $9M in Navy funding; total wartime output 359 vessels (12 PCs, 32 LCI(L)s, 61 DEs, 254 LSMs); the yard was leased to Todd Shipyards in 1949 and operated as Todd's Houston Division until 1984. The four subsequent Brown hulls (yard 356-359 = LSM-549-552) completed March-April 1946 as Gypsy-class salvage lifting vessels (ARSD 1-4).
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1945-1946
- Population
- Brown Shipbuilding construction workforce, Green's Bayou yard (1945)
- Limitations
- Secondary compilation built from yard and Navy records - the hull table is the strongest available source for the laid-down and launched dates that NavSource leaves 'unknown'. 'Delivered 2-Feb-46' corroborates NavSource's 2 February 1946 commissioning against uboat.net's 1 February. Disposition field prints 'Monk' for the Venezuelan name - evidently truncated 'Los Monjes'; identity corroborated by NavSource/navypedia. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-548-lsm548-02
-
[4]uboat.net Allied Warships, USS LSM 548 (shipID 13099) - milestone table compiled from official warship data [other_primary]
- Locator
- uboat.net ship page 13099, milestone table
- Finding type
- vessel_history
- Finding
- Secondary milestone record for this hull: ordered 30 August 1944; laid down 14 July 1945; launched 25 August 1945; commissioned 1 February 1946; end service 31 July 1946; decommissioned 31 July 1946; transferred to Venezuela 11 February 1959. Built by Brown Shipbuilding Co., Houston, Texas. No commanding-officer or event entries listed.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1944-1959
- Limitations
- uboat.net is a curated secondary compilation - its laid-down/launched dates agree with the Brown yard table (ev-02), but its 1 February 1946 commissioning conflicts with NavSource's 2 February and the yard delivery of 2-Feb-46; 2 February carried, conflict in gaps. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-548-lsm548-03
-
[5]navypedia.org, LOS MONJES medium landing ships (1945-1946/1959-1960) - Venezuelan service roster and technical data [other_primary]
- Locator
- navypedia ven_ls_los_monjes.htm ship table and technical data block
- Finding type
- vessel_history
- Finding
- Venezuelan service record for this hull: Los Monjes (ex-LSM-548), pendant T-13, renumbered T-21 in 1975; completed 2.1946, transferred to Venezuela 11.2.1959; stricken 1979. Documents the four-unit Venezuelan ex-USN LSM group: Los Monjes T-13/T-21 (ex-LSM-548), Los Roques T-14/T-22 (ex-LSM-543, transferred 15.7.1959), Los Frailes T-15/T-23 (ex-LSM-544, transferred 2.12.1959, destroyed by fire 21.6.1984), Los Testigos T-16/T-24 (ex-LSM-545, transferred 21.1.1960). Technical data consistent with LSM-1 class: 520 t standard / 1,095 t full; 62.0 m oa; General Motors diesels, 2 shafts, 2,800 hp, 12.5-13.2 kt; armament 1 twin 40mm/60 Mk 1 + 4 single 20mm/70 Mk 10; complement 60; no modernizations recorded.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1959-1979
- Population
- Venezuelan Navy crews, 1959-1979
- Limitations
- navypedia is a secondary naval reference - identity and pendant sequence corroborated by NavSource and Spanish Wikipedia's Armada vessel annex; its '4 General Motors diesels' machinery line conflicts with the two-engine direct-drive plant in NavSource and the class manual (see gaps). Contains no asbestos content; documents no Venezuelan-era overhaul or material record.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-548-lsm548-04
-
[6]Tiempo y Espacio (peer-reviewed Venezuelan history journal), Nº 64 (Jul-Dec 2015), ISSN 1315-9496 - 'Los destructores clase Nueva Esparta: acercamiento a su historia operacional', section on the 1962 Carupanazo suppression [reputable_press]
- Locator
- Tiempo y Espacio Nº 64, art. 23, section 6 '1962: El Carupanazo, El Porteñazo y la Cuarentena a Cuba'
- Finding type
- historical_record
- Finding
- Peer-reviewed documentation of this hull's Venezuelan operational use: during 'El Carupanazo' (4-5 May 1962), the Venezuelan government sent destroyer Nueva Esparta with destroyer General Morán (Clase Clemente) and the transports T-13 'Los Monjes' and T-14 'Los Roques' with marines embarked, to stage an amphibious assault on Carúpano if required; the force concentrated at Cumaná under CN José C. Seijas Villalobos. The transports' amphibious capability was not exercised - the insurgents surrendered. This is the only located operational employment of the ex-LSM-548 hull.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 1962
- Population
- Venezuelan Navy crew and embarked Infantería de Marina, May 1962
- Limitations
- Documents an operational deployment in Venezuelan service - a vessel-history fact, not an exposure record. The article's subject is the Nueva Esparta-class destroyers; the LSM detail is incidental but explicitly names T-13 'Los Monjes'. No asbestos content. PDF fetched 2026-10-02 (binary; text via search index extract verified).
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-548-lsm548-05
-
[7]U.S. Navy LSM Class Manual, 1 March 1944, Serial No. 1766 (issued to USS LSM-294) - scanned period class document hosted on NavSource, chapters 1 (General Data), 30 (Main Propelling Machinery), 31 (Auxiliary Machinery, incl. 31-9 Boilers) [other_primary]
- Locator
- NavSource LSM manual index; chapter PDFs lsm01-01 (General Data), lsm02-30 (Main Propelling Machinery), lsm02-31-9 (Boilers)
- Finding type
- historical_record
- Finding
- Period class documentation of the systems aboard an LSM-1-class hull: main propulsion by two direct-drive diesels (Fairbanks Morse 38D8-1/8 on early hulls; General Motors 16-278A on later hulls - the type NavSource lists for LSM-548), with an exhaust muffler per engine and no reduction gear; a small auxiliary oil-fired water-tube steam boiler supplying process steam at 55 psi; diesel-driven ship's service generators; class complement approximately 4 officers / 48-52 enlisted (OCR-read figures). The manual does not name insulation or lagging materials in the OCR'd chapters - it establishes which machinery systems existed aboard the class, not what they were insulated with.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-02
- Study period
- 1944 (manual date)
- Population
- Class-wide: crews and construction trades, 1944-46
- Limitations
- Class document, not a hull record: Serial 1766 was issued to USS LSM-294 and describes the LSM-1 class generally. Scanned pages were machine-OCR'd and partially garbled; machinery descriptions are legible but no insulation material is specified. Does not name LSM-548. Contains no asbestos content - its evidentiary value is documenting the systems to which era-standard asbestos applications would attach.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-548-lsm548-06
-
[8]Era inference built on: 1944 LSM Class Manual machinery documentation (ev-06); NavSource LSM-1 class spec block (GM 16-278A diesels, diesel-driven generators); Brown Shipbuilding construction era (1945); GAO HRD-80-2 Navy asbestos-use window (ev-08) [other_primary]
- Locator
- 1944 LSM Class Manual ch. 30-31 (NavSource scans); NavSource 14548.htm spec block; GAO HRD-80-2 product page
- Finding type
- asbestos_application
- Finding
- A diesel medium landing ship built in 1945 sits inside the Navy's documented asbestos-use era; era-standard applications aboard a vessel of this type and configuration were diesel exhaust and muffler lagging, auxiliary boiler and steam-line lagging on the small 55-psi process-steam plant, gaskets and valve packing across steam, fuel, lube-oil and seawater systems, electrical insulation, and compartment insulation/fireproofing in a welded-steel hull. The ship carried no propulsion steam plant - the boiler/turbine main-plant lagging pathway of steam vessels does not apply, and her underway career was only about six months (February-July 1946) followed by 12+ years in reserve layup and then foreign transfer.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-02
- Study period
- 1945-1979
- Population
- Brown Shipbuilding construction trades (1945); USN crew Feb-Jul 1946; reserve-fleet caretakers, Green Cove Springs (1946-59); Venezuelan Navy crews and any refit trades (1959-79); Venezuelan target-handling crews (1979)
- Limitations
- Class/era inference only - no hull-specific insulation survey, material list, or work package located for LSM-548. Names era-standard applications, not confirmed installed materials. No quantity. No manufacturer attribution for this hull. The brief active career and postwar layup bound any crew-era disturbance exposure; construction and the 1959 transfer/1979 target sinking bound the trade populations.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-548-lsm548-07
-
[9]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 construction (1945), USN service (1946), and reserve layup (1946-59). Venezuelan service (1959-79) falls outside the report's scope.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-02
- Study period
- 1979
- 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 2026-10-02) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-548-lsm548-08
-
[10]Batch-6334 search ledger (this record): NavSource hull page and LSM class-manual scans; shipbuildinghistory.com Brown yard table; uboat.net; navypedia; Tiempo y Espacio (SciELO); NHHC DANFS (no entry exists); NVR (out of coverage); NARA catalog (JS-rendered, pending); NIOSH (no report exists); GAO (blocked 403); CourtListener API v4 (opinion and docket, name and hull variants); secondary web litigation sweep [other_primary]
- Locator
- search_ledger rows sl-uss-lsm-548-lsm548-01 through -17
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS LSM-548 / ARV Los Monjes (T-13) was found in the public sources searched. CourtListener returned zero opinions and zero dockets for 'LSM-548' and zero opinions and zero dockets for 'LSM 548'; 'Los Monjes' opinions returned two Puerto Rico appellate cases that are pure name collisions (no ship relation). Secondary web sweeps surfaced no qualifying case; 'asbestos aboard LSM-548' content exists only on law-firm marketing pages asserting the hull without primary sourcing - excluded by source policy. No DANFS entry exists for this numbered hull.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-02
- Study period
- 2026-10-02
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - a 1945 naval build inside the documented asbestos-use era makes era-consistent material presence plausible but unproven for this hull. The six-month USN career and foreign transfer make US asbestos litigation naming this hull intrinsically unlikely, and no Venezuelan or other foreign record was located. 'Los Monjes' docket-side search was fleet-paced at session end - logged blocked, not a negative result. Deck logs, BuShips work packages, and the 1959 transfer case file are undigitized leads.
- Atlas source
- true
- Evidence ID
- ev-uss-lsm-548-lsm548-09