Page:Operation Crossroads 1946.pdf/415

 USS Searaven ( S S - 1 9 6 )

USS Searaven ( S S - 1 9 6 )

Shot BAKER (25 J u l y, 0835)

22 July 0415-0635 1550 29 July 1040

30 July 0900

1037

1209 1518

2209

31 July 1137

1420

1 August 1132

1312 1545 3 August 0900-1155

4 August 0830-1358

5 August 0845-1515

Searaven crew evacuated to Bottineau.No personnel remained aboard. Securing submerged boat. 1 OperSubmerged i n accordance with CJTF ation Plan 1-46. USSCoucal(ASR-8)surfacedSearaven: condition apparently good (Reference p. VII-1-40-8).

6 August 0830-1110

6,

USS Gypsy (ARSD-1) dlrected to Wdsh down Searaventhoroughlywlthhigh-pressure hoses,thentakereadingsandtryto board (Reference 6. p. VII-I-B-50). J& SC reported washing down Searaven.No change in reading. Additional instruments being obtained from USS Haven (AH-12) (Reference 6. p. VII-I-51-B). G m reported Searaven 2.5 R/24 hours. Monitor advised G m to leave vicinity (Reference 6. p. VII-1-52-8). G m took Geiger readlngs in the vicinityofSearavenandrequestedinstructions. % directed to return to anchorage (Reference 6. p. VII-1-55-8). On deck readings, 1.5 R/24 hours: vicinity reading. 0.35 R/24 hours. Searavendecontaminatedusingseawater and foamite (Reference 5. pp. 6-0-44 and 6-0-45).

1603 1 August 0950-1545

8 August 0851

Coucal was directed to proceed to the vicinity O E Searaven and blow ballast tanks asinstructed(Reference 6. p. VII-I1303 60-8). 1541 Coucal reported Searaven tanks dry, salfor vage hoses removed. and anchors ready removal when convenient (Reference 6. p. 9 August VII-I-61-B). 0815 G m reportedplacinga10-tonbow in 25feet(7.6 anchorfromSearaven Ismeters) of water north of Ionchebi land: buoyed with spherical buoy (Reference 6, p. VII-1-68-8). G m reported Searaven's stern anchor fouled (Reference 6. p. VII-I-69-B). G m reported Searaven clear (Reference 6. p. VII-I-70-B).

0945-1627

10 August 0830-1130 1300-1620

Teams A and B aboard to continue decontamination measures. Readings forward of conning tower, 1 to 1.25 R/24 hours: aft o € conning tower. 1 to 1.5 R/24 hours. Boarding party boarded to inspect boat. Entered conning tower, control room, forwardengineroom,andafterbattery. 0845 Found main induction piping flooded by 0915 leakage but no major damage. Tests of of an explosive air indicated presence mixture due to presence of hydrogen and 12 August fuel oil vapor. Secured boat, all hands 0825-1130 returned to Bottineau. Topside average 1307-1600 reading 0.82 R/24 hours.

410

Boarding party boarded to resume inspection and decontamination. Made initial inspection of all compartments. Ventilatedboattoremovegases. No major damagefound.Drainedmaininduction. Topside average 0.51 R/24 hours. Boarding party returned to Bottineau. Boarding party aboard. Commenced inspection of boat's equipment and decontamination measurestoreduceradioactivity t o hose present, using handybilly pump downweatherdecks.Scrubbedmaindeck with saltwater, soap. and boiler compound solutions (Reference 4 ) : boarding party returned to Bottineau. Secured boat. Boarding party on board to continue inspection and decontamination. Used handybilly pump to hose down weather decks. Scrubbed main deck with saltwater, soap, and boiler compound solutions. An additional scrubbing with a lye solution was employed. VSS Chowanoc (ATF-100) sprayed boat wlth a lye solution, and later @ Wenatchee (ATF-118) washed it with saltwater. Topside average 0.59 R/24 hours. First decontamination team came aboard to inspect and decontaminate vessel. Continued scrubbing with boiler compound and lye solution, washing down with saltwater supplied by a handybilly pump. Topside average 0.23 R/24 hours: topside maximum 0.30 R/24 hours. Decontamination team #2 aboard. Boat secured: personnel departed. Shifted all hands to remanned taroet shiD USS Fillmore (APA-83) for bert6ng anh rnessinq. Boarding party came on board to resume inspection and decontamination. Continued scrubbing with boiler compound and lye solution, and washing down with saltwater supplied by a handybi lly pump. Topside average 0.28 R/24 hours: topside maximum 0.31 R/24 hours. Boarding team on boardf o r inspection and of decontamination.Rippedupportion after cigarette deck and applied lye solution to surface of steel deck thus exposed. Used long-handled scrapers around base of bridge superstructure plating at intersection with main deck. Continually wetting and washing down with hose to prevent danger from dust particles (Reference 4 ). G m cleared fouled anchor. Anchor cleared: underway on two main engines. Anchored near berth 224. Bikini. f o r inspection Boarding party on board and decontamination. Topside average0.2