R  Subtask 28-11-00-650-110 
R  C. Fuel Configuration 
R  (1) The applicable wing tank must be full of fuel for a minimum of 30 
R  minutes before the test. 
R  (2) Fully refuel the applicable wing tank (Ref. TASK 12-11-28-650-003). 
R  (3) Drain the remaining fuel from the center tank (Ref. TASK 28-25-00-
R  650-003). 
R  Subtask 28-11-00-860-071 
R  D. Aircraft Maintenance Configuration 
R  (1) Extend the flaps fully (Ref. TASK 27-50-00-866-008). 
R  (2) Make sure that the LOCKING TOOL - FLAP/SLAT CONTROL LEVER is on the 
R  slat/flap control lever. 
R  (3) Extend the spoilers fully (Ref. TASK 27-60-00-866-002). 
R  (4) Make sure that the COLLAR-SAFETY, SPOILER is on each of the spoiler 
R  servo-controls. 
R  Subtask 28-11-00-865-102 
R  E. Open, safety and tag this(these) circuit breaker(s): 
R  -------------------------------------------------------------------------------
R  PANEL DESIGNATION IDENT. LOCATION 
R  -------------------------------------------------------------------------------
R  121VU FUEL/L WING TK/PUMP2 SPLY 7QA N26 
R  121VU FUEL/L WING TK/PUMP1 SPLY 1QA N23 
R  121VU FUEL/R WING TK/PUMP2 SPLY 8QA Q26 
R  121VU FUEL/R WING TK/PUMP1 SPLY 2QA Q23 
R  121VU FUEL/CTR TK/AUTO/CTL 3QL R27 
R  121VU FUEL/CTR TK/L&R XFR/CTL & IND 2QL R26 
R  121VU FUEL/CTR TK/L&R XFR/CTL & IND 1QL R25 
R  123VU L WING TK/PUMP 1/STBY SPLY 11QA AD12 
R  123VU R WING TK/PUMP 1/STBY SPLY 12QA AE12 

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R  Subtask 28-11-00-010-071 
R  F. Get Access 
R  (1) Open the MLG doors (Ref. TASK 32-12-00-010-001). 
R  (2) Make sure that the GROUND LOCK SLEEVE is on the applicable MLG door 
R  actuator. 
R  (3) Put an access platform in the applicable MLG bay below the access 
R  panel 147AZ, 148AZ. 
R  (4) Remove the applicable access panel 147AZ, 148AZ, (Ref. TASK 28-10-00-
R  910-002), (Ref. TASK 57-17-11-000-001). 
R  (5) Put an adjustable access platform below the applicable zone 521(621). 
R  (6) Put an adjustable access platform below the applicable zone 522(622). 
R  (7) Put an adjustable access platform in the applicable MLG bay below the 
R  Wing tank rear spar. 
R  (8) Put an adjustable access platform below the applicable zone 574(674). 
R  (9) Put an adjustable access platform below the applicable zone 575(675). 
R  (10) Remove the applicable leading-edge access-panels 521AB, 521CB, 521EB, 
R  522AB, 522CB, 522FB, 522HB, 522JB, 522KB, 522LB, 522NB, 522QB, 621AB, 
R  621CB, 621EB, 622AB, 622CB, 622FB, 622HB, 622JB, 622KB, 622LB, 622NB, 
R  622QB. 
R  (11) Remove the applicable trailing edge access panels 574AB, 574BB, 
R  575AB, 575BB, 575CB, 575DB, 575EB, 575FB, 575GB, 575HB, 674AB, 674BB, 
R  675AB, 675BB, 675CB, 675DB, 675EB, 675FB, 675GB, 675HB. 
R  (12) Remove the applicable dry-bay access-cover 521AZ, 521BZ, 621AZ, 621BZ 
R  (Ref. TASK 57-27-11-000-005). 

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R  4. Procedure_________ 
R  Subtask 28-11-00-790-064 
R  A. Visual Inspection 
R  (1) Look for signs of fuel leakage in these areas: 
R  - tank seals and sealant 
R  - structure, brackets and clamps 
R  - fuel pipelines, couplings, bonded items, brackets and clamps. 
R  (2) Talcum Powder Procedure: 
R  WARNING : USE A PROTECTIVE EYE SHIELD/GOGGLES WHEN YOU USE COMPRESSED_______ 
R  AIR. DEBRIS AND/OR HIGH PRESSURE AIR CAN DAMAGE YOUR EYES. 
R  CAUTION : USE THE TALCUM POWDER PROCEDURE ONLY ON THE EXTERNAL_______ 
R  SURFACES OF THE FUEL TANKS. 
R  (a) Dry the area of the possible leak with a MISCELLANEOUS (Material 
R  No. 19-003). 
R  (b) Dry the area fully with a low pressure, dry and filtered air 
R  supply. 
　
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