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(6) 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 LSK that is adjacent to <AIR CONDITIONING to show the GROUND TESTS for the air conditioning system.
(f)
Push the NEXT PAGE key until you find <PTC-A/ALL PACKS.
NOTE: If INHIBITED shows above <PTC-A/ALL PACKS, the test
____
will not operate.
(g) If INHIBITED shows above <PTC-A/ALL PACKS: 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.
E. Do the Cargo Air Conditioning Ground Test
S 715-011
(1) Push the LSK that is adjacent to <PTC-A/ALL PACKS.
NOTE: IN PROGRESS shows during the test.
____
S 715-012
(2) When IN PROGRESS goes out of view, look for PASS or FAIL> adjacent to <PTC-A/ALL PACKS.
NOTE: If PASS shows, no failures occurred during the test.
____
S 715-013
(3) If FAIL> shows:
(a)
Push the LSK that is adjacent to FAIL> to see the GROUND TEST MSG page for the failure.
(b)
Push the NEXT PAGE key until you find all the GROUND TEST MSG pages.
(c)
Make a list of all the CMCS messages, CMCS message numbers, and ATA numbers that show on the GROUND TEST MSG pages.
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(d) Go to the CMCS Message Index of the Fault Isolation Manual (FIM) to find the corrective action for each CMCS message.
F. Put the Airplane Back to its Usual Condition
S 865-014
(1) Remove the electrical power if it is not necessary
(AMM 24-22-00/201).
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CABIN SHUTOFF VALVES - REMOVAL/INSTALLATION
____________________________________________
1. General________
A. The forward cabin shutoff valve is in the right wing gear wheel well.
B. The aft cabin shutoff valve is under the main deck floor panels forward of the wing gear wheel well in the mix bay.
TASK 21-28-02-004-001
2. Cabin Shutoff Valve Removal (Fig. 401)___________________________
A. References
(1)
AMM 09-11-00/201, Towing
(2)
AMM 25-58-01/401, Lock/Stop Roller/Caster Trays
(3)
AMM 32-00-30/201, Landing Gear Door Locks
(4)
AMM 53-21-02/401, Main and Upper Deck Floor
(5)
SSM 21-28-02
(6)
WDM 21-28-22, 21-28-23
B. Access
(1) Location Zone
136 Wing Landing Gear Well, RH
241 Main Deck, LH
C. Prepare for Removal
S 864-002
(1) Open These circuit breakers and attach DO-NOT-CLOSE identifiers:
(a)
Left Power Distribution Center, P414 1) 414A10, FWD LWR CARGO A/C VLV 2) 414A11, AFT LWR CARGO A/C VLV
(b)
Main Power Distribution Panel, P6
1) 6E36, FWD LWR A/C CONT CARGO
2) 6E35, AFT LWR A/C CONT CARGO
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