S 865-003
(2)
Set the GND TESTS switch on the overhead maintenance panel, P461, to the ENABLE position.
S 865-004
(3)
Prepare the CDU for the test:
(a)
Push the MENU key on the CDU to show the MENU.
(b)
Push the line select key (LSK) that is adjacent to <CMC to show the CMC MENU.
(c)
If <RETURN shows after you push the LSK, push the LSK that is adjacent to <RETURN until you see the CMC MENU.
(d)
Push the LSK that is adjacent to <GROUND TESTS to show the GROUND TESTS menu.
(e)
Push the NEXT PAGE key until you find <21 AIR CONDITIONING.
(f)
Push the LSK that is adjacent to <21 AIR CONDITIONING to show the GROUND TESTS menu for the air conditioning system.
(g)
Push the NEXT PAGE key until you find <PTC-A/PACK-1.
NOTE: If INHIBITED shows above <PTC-A/PACK-1, the test will
____
not operate.
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(h) If INHIBITED shows above <PTC-A/PACK-1: 1) Push the LSK that is adjacent to the test prompt. 2) Do the steps shown on the CDU. 3) Push the LSK that is adjacent to <RETURN to show the ground
test menu again.
S 715-005
(4) Push the LSK that is adjacent to <PTC-A/PACK-1.
(a)
When the TEST PRECONDITIONS page shows, make sure each instruction on the page is completed. (Push the NEXT PAGE key to see subsequent pages.)
(b)
Push the LSK that is adjacent to START TEST>.
NOTE: IN PROGRESS shows during the test.
____
S 715-006
(5) When IN PROGRESS goes out of view, look for PASS or FAIL> adjacent to <PTC-A/PACK-1.
NOTE: If a PASS indication shows, no failures occurred during the
____
test.
(a) If FAIL> shows: 1) Push the LSK that is adjacent to FAIL> to see the GROUND TEST MSG pages for the failure. 2) Push the NEXT PAGE key until you find all the GROUND TEST MSG pages. 3) Make a list of all CMCS messages, CMCS message numbers, and ATA numbers that show on the GROUND TEST MSG pages.
4) Go to the CMCS Message Index of the Fault Isolation Manual (FIM) to find the corrective action for each CMCS message.
D. Put the Airplane Back to its Usual Condition.
S 865-006
(1) Set the GND TESTS switch to the NORM position.
S 865-006
S 865-015
(3) Remove the electrical power if it is not necessary
(AMM 24-22-00/201).
TASK 21-61-09-705-008
3. Flight Deck Flow Regulating - Cargo Fire Control System Operational Check
_________________________________________________________________________
A. References
(1) AMM 21-00-00/201, Air Conditioning
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(2)
AMM 21-51-01/401, Flow Control and Shutoff Valve
(3)
AMM 24-22-00/201, Manual Control
(4)
AMM 36-00-00/201, Pneumatic System
(5)
SSM 21-25-05
(6)
WDM 21-25-51
B. Access
(1) Location Zone
241 Main Deck, LH
C. Do the Cargo Fire Control System Check for the Flight Deck Flow Regulating Valve
NOTE: You must operate or simulate the operation of all three air conditioning packs in this procedure. Both methods are included in this procedure.
S 865-009
(1)
Supply electrical power (AMM 24-22-00/201).
S 865-025
(2)
AIRPLANES SIMULATING AIR CONDITIONING PACK OPERATION; Release pressure in the pneumatic system (AMM 36-00-00/201)
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