R  (c) Seal the drain holes of the pitot probe 9DA1 with colored 
R  adhesive tape. 
R  CAUTION : WHEN YOU SEAL THE DRAIN HOLE IN THE PITOT PROBE, DO NOT_______ 
R  SEAL THE HOLE DIRECTLY WITH THE COLORED ADHESIVE TAPE. 
R  ALWAYS PUT A PIECE OF PLASTIC ON THE HOLE AND USE THE 
R  TAPE TO ATTACH THE PLASTIC. 
R  IF YOU SEAL THE DRAIN HOLE DIRECTLY WITH THE ADHESIVE 
R  TAPE, THERE IS A RISK THAT SOME OF THE ADHESIVE WILL 
R  STAY ON THE HOLE AND COLLECT PARTICLES. THIS CAN 
R  SUBSEQUENTLY CAUSE BLOCKAGE OF THE HOLE AND THUS 
R  INCORRECT OPERATION OF THE PROBE. 
R  (d) Move the vane of the AOA sensor 3FP1 to the top (nose-up) 
R  position. Keep the vane in this position with colored adhesive 
R  tape. 
R  (3) Install the FALSE TARGET (98F32304000000) on the applicable proximity 
R  sensor 21GA(20GA).
 4. Procedure_________
 Subtask 32-31-00-720-068 
R  A. Operational Check to Ensure Safety Valve Closes at 260 kts 
R  CAUTION : OBEY THESE PRECAUTIONS WHEN YOU DO THE TEST TO PREVENT DAMAGE_______ 
R  TO INSTRUMENTS: 
R  - PRESSURE SET MUST NOT BE MORE THAN 1050 hPa (31 in Hg) OR 
R  LESS THAN 115 hPa (3.39 in Hg) 
R  - CHANGES IN PRESSURE MUST NOT BE MORE THAN 6000 FEET/MINUTE 
R  - DO NOT SUDDENLY OPEN LINES TO AMBIENT AIR WHILE THE PRESSURE 
R  GENERATOR IS CONNECTED. 
R  CAUTION : THE TOTAL PRESSURE IN THE PITOT SYSTEM MUST NEVER BE LESS THAN_______ 
R  THE STATIC PRESSURE. THE DIFFERENCE BETWEEN THE PITOT AND THE 
R  STATIC PRESSURE CIRCUITS MUST NEVER BE MORE THAN 368 hPa (10.86 
R  in Hg).

 -------------------------------------------------------------------------------
ACTION RESULT -------------------------------------------------------------------------------
1. On the panel 20VU:
 - make sure that the ADIRS is set
 to the OFF position. 
R  2. Make sure that the travel range 
R  of the applicable MLG door is 
R  clear.
 3. Try to move the applicable ground 
door-operating handle to the 
R  CLOSE position. 
R 
R 
R 
R 
R 
R 
R  4. Remove the FALSE TARGET from the 
R  applicable proximity sensor 
R  21GA(20GA). 
R  5. Make sure that the travel range 
R  of the applicable MLG door is 
R  clear. 
R  6. Move the applicable ground 
R  door-operating handle to the 
R  CLOSE position. 
R  7. Move the ground door-operating 
handle to the OPEN position.
 Subtask 32-31-00-865-102

The handle will not move.
NOTE : There can be unwanted movement
____ of the ground door-operating handle because of remaining green hydraulic pressure. If the handle can be moved more than five times, it is possible that the safety valve 49GA is defective.
The safety valve 49GA is energized (valve OPEN).
The MLG door closes.
The MLG door opens.
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1LF, 79WL, 150RH, 153RH, 154RH, 155RH, 4RN, 5RN, 9RN, 2RC1, 2RG1, 12WV, 5FN, 6FS, 5WW, 8FP, 22WT1, 24WT1, 21WT3, 17WT1, 21WT1, 15WT, 2702GJ, 1HZ, 1HL, 5HQ, 2DA1, 1DB1, 61GG, 1703GK, 3702GD, 15CE1, 19CE2, 21CE1, 6CV, 5CV, 9CA1, 1KC1, 1KC2, 2KS1, 2KS2, 4KS1, 1JH, 2JH1, 2JH2, 3JH1, 3JH2, 7WD1, 8WD2, 1QG, 2QG, 55QA.
 1EFF : ALL 1 32-31-00Page 544 1 1 May 01/05 1 1 1CES 1 1EFF : ALL 1 32-31-00Page 545 1 1 May 01/05 1 1 1CES 1

 Subtask 32-31-00-865-103
 C. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU L/G/LGCIU/SYS1/NORM 1GA C09 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34
 Subtask 32-31-00-020-052
 D. Removal of the LGCIU 1
 (1) Remove the LGCIU 1 (5GA1) (Ref. TASK 32-31-71-000-001).
 Subtask 32-31-00-865-106
 E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1GA, 52GA.
 Subtask 32-31-00-861-061
 F. Energize the Aircraft Electrical Circuits
　
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