CHAPTER 14 — Surface Supplied Mixed Gas Diving Procedures
Change A 14-23
Date: 11 Aug 00
Diver 1: GM3 Friction
Diver 2: BM2 Blanchard
Diver 3: TM2 Ogburn
Rig: MK-21 PSIG: 3000 O2%:16.2
Rig:MK-21 PSIG:2950 O2%: 16.2
Rig: MK-21 PSIG:2975 O2%:16.2
Diving Supervisor: EN1 Hordinski
Timekeeper/Recorder: BM2 Clark
Bottom Mix:15.2
EVENT
STOP TIME
CLOCK
EVENT
TIME/DEPTH
LS or 20 fsw
0800
Descent Time (Water)
:07
RB
0807
Stage Depth (fsw)
212
LB
0838
Maximum Depth
222+4=226
R 1st Stop
0843
Table/Schedule
230/:40 Sur D
190 fsw
Time to 1st Stop (Planned)
:03::24
180 fsw
Bottom Time
:38+:02=:40
180 fsw
Time to 1st Stop (Actual)
:04::47
170 fsw
Delay to 1st Stop
:1::23
160 fsw
Ascent Time - Water (Actual)
:01::03
150 fsw
Undress Time -Sur D (Actual)
:02::15
140 fsw
Descent Chamber-Sur D(Actual)
::58
130 fsw
Total Sur D 40 to 50 - (Actual)
:04::16
120 fsw
Ascent Time -Chamber (Actual)
:01::20
110 fsw
:07
0850
HOLDS ON DESCENT
100 fsw
DEPTH
PROBLEM
90 fsw
:03
0853
32’
Red Diver - Right Ear
80 fsw
:07
0900
70 fsw
:09
0909
60 fsw
:13
0922
DELAYS ON ASCENT
50 fsw
:13
0935
DEPTH
PROBLEM
40 fsw
:30
0948
150’
Winch Problem (Fixed)
30 fsw
20 fsw
RS
0950
DIVING REMARKS
Reached 50 fsw(RCC)
0953
1. Delay on Ascent. Added :02 to bottom time.
Didn’t change schedule.
2. Red Diver had trouble clearing due to
position of nose clearing device. DMT checked
ears post dive. No barotrauma noted.
50 fsw (RCC)
:15::09
1008
40 fsw (RCC)
:15+:5+:30+:5+
:30+:5+:30
1208
30 fsw (RCC)
20 fsw (RCC)
RS (RCC)
1210
TDT
TTD
3:32
4:10
Figure 14-4. HEO2 Diving Chart for Surface Decompression Dive Withholds.
