Page:Operation Crossroads 1946.pdf/435

 USS Tuna (SS-203) 30 June

USS Tuna (SS-203)

with CJTF I Operation Plan 1-46 and proceeded to Bottineau for billeting.

1000 1012

1 July 1539 1542 1545

Etlah (AN-79)ordered to check wdter around Tung carefullybeforeboarding (Reference 6, p. VII-I-12-A). Etlah reported Tuna not boarded. Etlah reported T u n a Geiger sour (Reference 6 . p. VI1- I 13 A). USS

1020 1050

1101 1245

2 July 0724 0739 0800

1147-1425

1610

" Etlah proceeding Tuna.to Etlah reported boarding team on T u n a (Reference 6. p. VII-I-20-A). reported Tuna Geiger sweet (Reference 6, p. VII-I-21-A). Commanding officer. radiological monitor. three officers. and thirty men reboarded ship for inspection. Condltlons normal, commenced normal routine. Remaining men came aboard. "

1643

29 July 3 July 1545 1645

9 July 0915 1015

Underway for USS Fulton (AS-11). Moored to target submarine USS Searaven (89-196)i n nest alongside Fulton in anchorage 231.

1 300

1327

Underway for anchorage. Anchored in Bikini Lagoon. 30 JuI 1 Y

Shot B A K E R ( 2 5 J u l y, 0835)

24 July 0920 "

0

115 1400

L>

July 1638

27 July 0924 1135

1645 28 July 0845

YSS Widqeon (ASR-11 anchored off starboardbeamandcommencedsubmergence 1725 operation. Tuna secured for submergence: four officers and twenty men disembarked to Widqeon. Widqeon commenced venting Tung for submergence in accordance with instructions 31 July of CROSSROAnS Submarine Unit. 1 August Submergence completed. Four officers and remalning crew disembarked for Bottineau. 1245 USS Reclaimer (ARS-42) backed away from (submerged). area of Water very radioactive. Also a report was received thatoneofthesubmergedsubmarines (believed to be T u n a ) was sjghted ln its normal submerged position (Reference 6, pp. VII-I-13-B and VII-I-15-B).

1710

-

Coucal directed Etlah to remove m's anchors. stern anchorsfirst. g t & directed to take anchors recovered to wet storage off IonchebJ from Island. Etlah moored portslde toTuna. Completed operations. underway. . Etlah - . ". reported all anchors had rebeen moved; all had t o he burned off (Reference 6. p. VI1 I 29 B). USS Chickasaw (A'rF-83) directed to take TUna in tow to buoy in lee of Rochikari Island and to buoy its anchors when cut6, p. VII-Iting them out (Reference 31 -B). Chickasaw reported TT secured to buoy in vicinity of berth 251 (Reference 6, p. VII-I-33-B). It was decided that evening that all remalnlng ballast tanks of T u n a should be blown (Reference 6. p. VII-I-35-E). Widqeon directed to wash down T u n a after 6, blowing its ballast tanks (Reference p. VII-I-36-B). Topside washed down (Reference 6, p. VIII-43--8). Geiger reading 3.5 R/24 hours (Reference lo). Prior to washdown Geiger readlng 4.0 R/24 hours. Widqeonreportedallballasttankson Tuna completely vented, deck valves were secured. USS Achomawi (ATF-148) took aboard U s Wharton (AP-7) boarding team, then proceeded to target submarinesT u n a and U s Skate 63-305) and washed down with highpressure streams, taking readlngs before and after (Reference 6. p. VII-I-49-B). Achomawireportedreadingsonbefore No appreciablechanges washingdown. afterwashingdownwithseawaterand foamite (Reference6 . p. VII-I-55-B). Given a lye bath (Reference 4). Commandingofficer,3officers.radiologicalmonitor,and 18 enlistedmen reboarded and commenced reentering proof boat. cedure and lnspection Secured boat and evacuated. Below decks radioactivitywlthintolerance.Damage was negllgible (Reference10).

2 August 0920

_Reclaimer ___

sighted Tuna in submerged position, apparently undamaged (Reference 6, p. VII-I-20--B). USS Coucal (ASR-8) surfaced Tuna using normal surfacing procedure, Geiger reading 8.0 R/24 hours. No apparent damage (Reference 10). Reclaimer inspected surfaced Tuna (Reference 6, p. VII-I-24-E).

1610

Commanding officer, ofPicers. radiological monitor, and crew reboarded to continue inspection, testing. and decontamination work. About half the electricalequipmentwasoperatingandwork continued. There was no indication on preliminary inspection that any electrical equipment had been damaged (Reference lo). T u n a was decontaminated using saltwater wash and lye bath on bridge (Reference 4). Secured ship and evacuated.

3 August Reclaimer passed target submarines Tund and uSS Dentuda (98-335). T u n a showed signs of floodingandstarboardlist (Reference 6, p. VII-1-27-8).

0930

430

Commanding officer, officers, and radiologicalmonitorreboardedtocontinue inspection. testing. and decontamination Work.