Evidence
9 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-9).
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[1]research packet 939-packet.md (4 sources cited) [other_primary]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Evidence ID
- uss-pc-786-pc786-pkt-939-packet-md
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[2]NavSource Online, Submarine Chaser Photo Archive, PC-786 record - construction timeline, specifications, disposition, and photo record; live page verified 2026-10-03 [other_primary]
- Locator
- PC-786 record: construction/disposition timeline block, specifications block, photo captions 1201078604, 1201077803, 1201078603
- Finding type
- vessel_history
- Finding
- NavSource record for this hull: laid down 31 December 1942 by the Commercial Iron Works, Portland, OR; launched 6 February 1943; commissioned USS PC-786, 30 October 1943; identified as surplus to the Navy's needs in December 1948; decommissioned 19 May 1954 and transferred to the Republic of China, reclassified PC-108; struck from the Navy Register 1 January 1969; fate unknown. Specifications: displacement 450 t.; length 173'8"; beam 23'; draft 10'10"; speed 20.2 kts; complement 65; armament one 3"/50 dual-purpose mount, one 40mm mount, five 20mm guns, two rocket launchers, two depth-charge tracks; propulsion two 1,440 bhp Hooven-Owen-Rentschler R-99DA diesel engines (serial numbers 7053 and 7054), Westinghouse single-reduction gear, two shafts. Photo record places the hull at Dutch Harbor, Aleutians c. 1943-45 (with PC-792 astern of Phoebe AMc 57), at Adak c. 1945 (with PCs 778, 788, 818, 819), and in the Lake Washington Canal, Seattle c. 1954. Page states there is no DANFS history for PC-786.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1969
- Population
- Commercial Iron Works construction trades 1942-43; wartime crew (design complement 65); Seattle Naval Reserve trainees c. 1946-1949
- Limitations
- NavSource is an archival photo index compiled from official records rather than a Navy registry itself; it documents identity, timeline, and specifications but says nothing about asbestos materials aboard. Its single-line 'Decommissioned 19 May 1954, transferred' framing conflicts with the Naval Cover Museum's 22 June 1946 decommissioning and 3 April 1954 transfer dates - the conflict is carried in gaps, not reconciled.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-786-pc786-01
-
[3]uboat.net Allied Warships, USS PC-786 (PC-786) entry - order date, wartime commanding officers, end of service; live page verified 2026-10-03 [other_primary]
- Locator
- Ship data table (ordered, laid down, launched, commissioned, end service, history) and commands table
- Finding type
- vessel_history
- Finding
- uboat.net record for this hull: ordered 27 February 1942; built by Commercial Iron Works, Portland, Oregon; laid down 31 December 1942; launched 6 February 1943; commissioned 30 October 1943; end of service 19 May 1954 - 'Decommissioned on 19 May 1954 and transferred to Taiwan being renamed PC-108.' Wartime commanding officers listed: Edwin Thorne, USNR (30 October 1943 to mid/late 1944); William G. Brown, USNR (mid/late 1944 to early 1945); Joe M. Scott, USNR (early 1945 to late 1945).
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1954
- Population
- Wartime commanding officers and crew
- Limitations
- uboat.net is a curated secondary database, not an official record; CO names and the order date are consistent with the class construction program but are not independently verified here. Agrees with NavSource on the 19 May 1954 decommissioning/transfer date, leaving the Naval Cover Museum's 22 June 1946 / 3 April 1954 dates as the outlier carried in gaps.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-786-pc786-02
-
[4]NavSource Online, Waxbill (MHC 50/AMCU 50/AMS 39/ex-YMS-479) record, U.S. Navy photo NH 96981 caption, Naval Historical Center; live page verified 2026-10-03 [other_primary]
- Locator
- Waxbill photo table, NH 96981 caption; Waxbill timeline ('Placed in service ... 19 January 1949')
- Finding type
- historical_record
- Finding
- Official U.S. Navy photo NH 96981 caption documents this hull's postwar duty: Waxbill, berthed at the Naval and Marine Corps Reserve Training Center, Seattle, Washington c. April 1949, 'had recently been attached to the Center to replace PC-786 in training Seattle-area Naval Reservists.' Waxbill was placed in service for Naval Reserve training duty in the 13th Naval District at Seattle on 19 January 1949, establishing the replacement window. This confirms PC-786 served as a Naval Reserve training ship at Seattle until early 1949 - consistent with NavSource's 'surplus December 1948' note and the c. 1954 Lake Washington Canal photograph on her own page.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1946-1949
- Population
- Seattle-area Naval Reservists; PC-786 caretaker/training crew c. 1946-1949
- Limitations
- Documents a postwar training role at Seattle and an early-1949 replacement window; does not establish the hull's commission status during that duty (in-service vs in-commission), and says nothing about materials or asbestos aboard.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-786-pc786-03
-
[5]National Archives and Records Administration, Special List No. 44, Ships' Logs by Ship Number, PC-786 line; live PDF verified 2026-10-03 [other_primary]
- Locator
- Special List No. 44 PDF, page 73, PC-786 line (10/30/1943 - 6/30/1945)
- Finding type
- historical_record
- Finding
- NARA's logbook finding aid lists PC-786 deck-log coverage from 30 October 1943 (her commissioning date) through 30 June 1945 - i.e., her wartime deck logs are held and indexed.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-10-30 to 1945-06-30
- Population
- Navy logbook records
- Limitations
- These are archival coverage dates, not inferred commissioning or decommissioning dates, and do not prove continuous operation through the interval. The finding aid does not address materials or asbestos.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-786-pc786-04
-
[6]NARA catalog: file unit 'PC-786, 10/30/43-6/20/46', NAID 192732936 (RG 24 Muster Rolls, Roll 5860, 138 digitized images); catalog search also indexes 'PC-786' inside RG 38 WWII War Diary file units including COM 17 (17th Naval District) war diaries for July/August/September 1944 (NAIDs 78600147, 134362848, 139759412), COMNORPAC February 1944/June 1944/February 1945 (NAIDs 139929649, 78521436), NAV STA ASTORIA November 1943 (NAID 135996492), and COMWESTSEAFRON 1944 units [other_primary]
- Locator
- catalog.archives.gov id/192732936; search '"PC-786"' file-unit results (149 results, 145 online) at catalog.archives.gov
- Finding type
- historical_record
- Finding
- NARA holds two ship-specific record series for this hull: digitized muster rolls 'PC-786, 10/30/43-6/20/46' (NAID 192732936, RG 24) - the coverage end date of 20 June 1946 is consistent with the Naval Cover Museum's 22 June 1946 decommissioning - and indexed mentions of 'PC-786' inside command-level WWII war diaries (COM 17/Seventeenth Naval District and COMNORPAC 1944-45; Naval Station Astoria November 1943), corroborating a North Pacific/Aleutians operating area after a Columbia River work-up.
- Verification
- verified
- Role
- archival_lead
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1943-1946
- Population
- PC-786 enlisted crew (muster rolls); North Pacific command staffs (war diaries)
- Limitations
- Archival leads only: the file units were identified in the catalog, not reviewed page-by-page; the war-diary hits are mentions inside command diaries, not a PC-786 unit diary. Muster-roll coverage ending 20 June 1946 is consistent with - but does not itself state - a June 1946 decommissioning. No asbestos content is implied by any of these records.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-786-pc786-05
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[7]Naval Cover Museum wiki, PC 786 entry - ship name and designation history with alternate dates and Republic of China name; live page verified 2026-10-03 [museum_official]
- Locator
- PC 786 page, 'Ship Name and Designation History' section
- Finding type
- vessel_history
- Finding
- The Naval Cover Museum's designation history records: USS PC-786 commissioned 30 October 1943 - decommissioned 22 June 1946; then 'HSIANG KIANG PC-108 (Taiwanese Naval Service), Transferred to the Republic of China (Taiwan) 3 April 1954 and renamed; Struck from Naval Register 1 January 1969; fate unknown.' This supplies the ROC name Hsiang Kiang (Xiang Jiang) that NavSource omits, and an alternative date pair (22 June 1946 decommissioning; 3 April 1954 transfer) against NavSource's/uboat.net's 19 May 1954 combined decommission-and-transfer.
- Verification
- partial
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1946-1969
- Population
- ROC Navy crew of Hsiang Kiang (PC-108), 1954-1969
- Limitations
- The museum is a collector-curated wiki, not an official record; its dates conflict with NavSource and uboat.net and no side is independently adjudicated here - both are carried and the conflict is logged in gaps. The 3 April 1954 date may reflect a transfer-authorization date distinct from the 19 May 1954 physical handover/decommissioning, but that reading is inference, not fact.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-786-pc786-06
-
[8]PC-461-class design context: diesel-driven 173-foot steel submarine chaser type (two 1,440 bhp diesels, two shafts, ~450 t., complement 65); 341 hulls built 1941-44 by multiple yards including Commercial Iron Works of Portland (43 of class); engine makes varied by hull - this hull carried Hooven-Owen-Rentschler R-99DA units per NavSource [other_primary]
- Locator
- Class design parameters per NavSource PC-786 specifications block and PC-461-class references (construction-program context only)
- Finding type
- asbestos_application
- Finding
- Era/class context only: as a WWII diesel-driven steel patrol craft, era-standard asbestos use aboard would have been limited to engine-exhaust lagging, machinery gaskets and packing, electrical insulation, and similar small-craft applications; with no boilers or steam plant, the steam-era insulation load typical of larger combatants does not apply. Federal asbestos-shipbuilding context (GAO-documented Navy-wide asbestos insulation use through the early 1970s) applies to the era generally.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1941-1944 (construction era)
- Population
- PC-461-class construction trades and crews (class context)
- Limitations
- Class/era inference, not a ship-specific finding - no materials list, survey, or manual specific to this hull was located. Does not establish that asbestos was or was not installed aboard PC-786, its quantity, locations, or any exposure.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-786-pc786-07
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[9]Batch-8159 search ledger (this record): NHHC DANFS, NavSource, uboat.net, NARA catalog + Special List 44, Naval Cover Museum, Naval Vessel Register, web sweep; CourtListener authenticated helper [other_primary]
- Locator
- search_ledger rows sl-uss-pc-786-pc786-01 through sl-uss-pc-786-pc786-13
- Finding type
- asbestos_application
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, material inventory, or qualifying litigation naming PC-786 was found in the public sources searched (see search_ledger). The four required CourtListener base queries completed: 'USS PC-786' opinions (8 hits) and dockets (999 hits) and 'PC-786' opinions (2,284 hits) and dockets (17,693 hits) - every reviewed hit classified as a token-level name collision; none names the vessel.
- 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 - WWII-era construction is consistent with era-standard materials. Does not establish or defeat any claim of exposure or legal eligibility. CourtListener caveat: the hull number is a high-collision string; only first-page results were classified hit-by-hit, and the two asbestos-qualified variant queries (sanctioned for the overflow) could not be run because the fleet pacing budget stayed spent - a residual possibility of a qualifying hit deeper than page 1 cannot be excluded.
- Atlas source
- true
- Evidence ID
- ev-uss-pc-786-pc786-08