_______________

 2. Job Set-up Information

______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 12-33-21-618-001 Pre-conditioning through the HP Ground Connection AMM 21-52-00-200-011 General Visual Inspection of the Bellows between the Pack Outlet and the Mixer Unit AMM 21-52-43-210-001 Detailed Visual Inspection of Pack-Air Check-Valve Flappers for Condition and Operation
 3. Fault Confirmation
__________________
 A. Functional Test of the Cabin Temperature Control
 (1) Do the pre-conditioning through the HP ground connection (Ref. AMM TASK 12-33-21-618-001).

 (2) With your hand or a piece of paper do a check for air flow at the cabin air-outlets.

 4. Fault Isolation
_______________
 A. If there is not a sufficient airflow from the cabin air-outlets do the steps which follow:
 (1) Do a check of the belly-fairing blowout-panel.

 - If the belly-fairing blowout panel is open, then close it.

 (2) Do a detailed visual inspection of the bellows between the air-pack 2 outlet and the mixer unit (Ref. AMM TASK 21-52-00-200-011).

 (3) Replace the bellows if nessesary. NOTE : If the bellows are damaged, do a detailed visual inspection of

____ the flap of the pack 2 downstream check-valve (16HM)for condition and operation (Ref. AMM TASK 21-52-43-210-001).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : ALL ∞∞21-63-00∞∞∞∞∞∞∞∞∞∞Page A206
 Aug 01/05 CES

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 TASK 21-63-00-810-848 Failure Not Clearly Identified - Zone Controller Fault NOTE : Further information for Zone Controllers Part Number 775D0000-01 with
____ these serial numbers: 1336 to 1340, 1344, 1345, 1347, 1354 to 1356, 1359, 1360, 1362, 1363, 1366 to 1368, 1370 to 1372, 1374, 1376, 1377, 1380, 1381, 1384, 1385, 1387, 1389, 1392 to 1394, 1396, 1397, 1399, 1403, 1405 to 1409, 1411, 1412, 1414 to 1420, 1422, 1431, 1437 and 1462 can be found in Libherr SIL 120.
 1. Possible Causes
_______________
 - CONT-ZONE TEMPERATURE (8HK)
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-63-34-000-001 Removal of the Zone Controller (8HK)
 AMM 21-63-34-400-001 Installation of the Zone Controller (8HK)

 3. Fault Confirmation
__________________
 A. This fault cannot be confirmed on the ground.
 (1) Do a read out of the Previous Leg Reports (PLR).
 4. Fault Isolation
_______________ R **ON A/C 004-049, 053-099, 101-149, 151-199, 201-299, 301-399,
 A. If the PLRIs give the maintenance message FAILURE NOT CLEARLY IDENTIFIED:
 (1) If the message is not repetitive no further trouble shooting is necessary.

 (2) If the message is of a repetitive nature,

 - replace the CONT-ZONE TEMPERATURE (8HK) (Ref. AMM TASK 21-63-34-000-001) and (Ref. AMM TASK 21-63-34-400-001).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞21-63-00∞∞∞∞∞∞∞∞∞∞Page A207
 201-299, 301-399, Aug 01/05 CES

 **ON A/C ALL
 TASK 21-63-00-810-849
 Trim-Air Pressure Regulating Valve or Pressure Switch Fault
 1. Possible Causes
_______________
 - VALVE-PRESSURE REGULATING (14HK)

 - PRESSURE SWITCH-HOT AIR (26HK)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-63-00-710-004 Operational Test of the Cockpit and Cabin Temperature Control with CFDS/MCDU AMM 21-63-00-920-001 Scheduled Replace/Restore the Trim-Air
 Pressure-Regulating Valve Filter AMM 21-63-19-000-001 Removal of the Hot Air-Pressure Switch 26HK AMM 21-63-19-400-001 Installation of the Hot Air-Pressure Switch 26HK AMM 21-63-52-000-001 Removal of the Pressure Regulating Valve 14HK AMM 21-63-52-400-001 Installation of the Pressure Regulating Valve 14HK ASM 21-63/01 ASM 21-63/03
　
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