R **ON A/C 301-399,
R TASK 52-73-00-810-801-A
R Abnormal Flashing of the CABIN PRESSURE Warning Light Panels of the Passenger/
R Crew Door and Emergency Exits
R 1. Possible Causes_______________
R - PRESS SW-CABIN PRESS DET (14WN)
R - WARN LT PNL-CABIN PRESSURE, AFT L DOOR (17WN1)
R - WARN LT PNL-CABIN PRESSURE, AFT R DOOR (17WN2)
R - WARN LT PNL-CABIN PRESSURE, AFT L EMERGENCY EXIT (20WN2)
R - WARN LT PNL-CABIN PRESSURE, AFT L EMERGENCY EXIT (20WN1)
R - WARN LT PNL-CABIN PRESSURE, FWD L EMERGENCY EXIT (19WN1)
R - WARN LT PNL-CABIN PRSSURE, FWD R EMERGENCY EXIT (19WN2)
R - WARN LT PNL-CABIN PRESSURE, FWD R DOOR (16WN2)
R - WARN LT PNL-CABIN PRESSURE, FWD L DOOR (16WN1)
R - RELAY-ENG2 ON/OFF (18WN2)
R - RELAY-ENG2 OIL LOW PRESS (3EN2)
R - CTL SW-ENG/MASTER 2 (2KC)
R - RELAY-ENG1 ON/OFF (18WN1)
R - RELAY-ENG1 OIL LOW PRESS (3EN1)
R - CTL SW-ENG/MASTER 1 (3KC)
R - wiring from the warning light panel 17WN1 pin D to the warning light panel
R 17WN2, pin C
R - wiring from the warning light panel 20WN2 pin C to the warning light panel
R 19WN2 pin D
R - wiring from the warning light panel 20WN2 pin D to the warning light panel
R 20WN1 pin C
R - wiring from the warning light panel 20WN1 pin D to the warning light panel
R 17WN1 pin C
R - wiring from the warning light panel 19WN1 pin C to the warning light panel
R 19WN2 pin D
R - wiring from the cabin pressure detection pressure switch pin B 14WN to the
R warning light panel 16WN2 pin C
R - wiring from the warning light panel 16WN2 pin D to the warning light panel
R 16WN1 pin C
R - wiring from the warning light panel 16WN1 pin D to the warning light panel
R 17WN1 pin C
R 2. Job Set-up Information
______________________
R A. Referenced Information
R -------------------------------------------------------------------------------R REFERENCE DESIGNATION R -------------------------------------------------------------------------------
R AMM 52-73-12-000-001 R R AMM 52-73-12-400-001 R R AMM 52-73-22-000-001 R R AMM 52-73-22-000-002 R R AMM 52-73-22-000-003 R R AMM 52-73-22-400-001 R R AMM 52-73-22-400-002 R R AMM 52-73-22-400-003 R R R ASM 52-73/02 R ASM 76-12/01 R ASM 79-36/01
R 3. Fault Confirmation
__________________
R A. Test Removal of the Cabin-Pressure Detection Pressure-Switch (14WN) Installation of the Cabin Pressure Detection Pressure-Switch (14WN) Removal of the CABIN PRESSURE Warning Light Panel (16WN1,16WN2) of the FWD Passenger/Crew Door Removal of the CABIN PRESSURE Warning Light Panel (17WN1,17WN2) of the Aft Passenger/Crew Door Removal of the CABIN PRESSURE Warning Light Panel (19WN1,19WN2,20WN1,20WN2) of the Emergency Exit Installation of the CABIN PRESSURE Warning Light Panel (16WN1,16WN2) of the FWD Passenger/Crew Door Installation of the CABIN PRESSURE Warning Light Panel (17WN1,17WN2) of the Aft Passenger/Crew Door Installation of the CABIN PRESSURE Warning Light Panel of the Emergency Exit Door (19WN1,19WN2,20WN1,20WN2)
R Not applicable: the fault is evident. R 4. Fault Isolation
_______________
R A. If the CABIN PRESSURE warning light panels flash without overpressure:
R - disconnect the cabin-pressure detection pressure-switch 14WN.
R (1) If the warning light panels of the doors do not flash:
R - replace the PRESS SW-CABIN PRESS DET (14WN) (Ref. AMM TASK 52-73-R 12-000-001) and (Ref. AMM TASK 52-73-12-400-001).
R (2) If the warning light panels of the doors flash:
R (a) Disconnect the connector of the warning light panel 17WN1.
R (b) If the warning light panels of the FWD doors and emergency exits
R do not flash:
R - do a check for a short to ground at pin D of the connector of
R the warning light panel 17WN1 (Ref. ASM 52-73/02).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 301-399, ∞∞52-73-00∞∞∞∞∞∞∞∞∞∞Page 207 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 舱门 DOORS(126)
