- WARN LT PNL-CABIN PRESSURE, FWD L DOOR (16WN1)
- RELAY-ENG2 ON/OFF (18WN2)
- RELAY-ENG2 OIL LOW PRESS (3EN2)
- CTL SW-ENG/MASTER 2 (2KC)
- RELAY-ENG1 ON/OFF (18WN1)
- RELAY-ENG1 OIL LOW PRESS (3EN1)
- CTL SW-ENG/MASTER 1 (3KC)
- wiring from the warning light panel 17WN1 to the warning light panel 17WN2, pin D to pin C
- wiring from the cabin pressure detection pressure switch 14WN and the warning light panel 16WN2, pin B to pin C
- wiring from the warning light panel 16WN2 pin D to the warning light panel 16WN1 pin C,
- wiring from the warning light panel 16WN1 pin D to the warning light panel 17WN1 pin C
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 52-73-12-000-001 Removal of the Cabin-Pressure Detection Pressure-Switch (14WN) AMM 52-73-12-400-001 Installation of the Cabin Pressure Detection Pressure-Switch (14WN) AMM 52-73-22-000-001 Removal of the CABIN PRESSURE Warning Light Panel (16WN1,16WN2) of the FWD Passenger/Crew Door AMM 52-73-22-000-002 Removal of the CABIN PRESSURE Warning Light Panel (17WN1,17WN2) of the Aft Passenger/Crew Door AMM 52-73-22-400-001 Installation of the CABIN PRESSURE Warning Light Panel (16WN1,16WN2) of the FWD Passenger/Crew Door
「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 : ALL ∞∞52-73-00∞∞∞∞∞∞∞∞∞∞Page 201
Aug 01/05 CES -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 52-73-22-400-002 Installation of the CABIN PRESSURE Warning Light
Panel (17WN1,17WN2) of the Aft Passenger/Crew Door ASM 52-73/02 ASM 76-12/01 ASM 79-36/01
3. Fault Confirmation
__________________
A. Test
Not applicable: the fault is evident.
4. Fault Isolation
_______________
A. If the CABIN PRESSURE warning light panels flash without overpressure:
- disconnect the cabin pressure detection pressure switch 14WN.
(1) If the warning light panels of the doors do not flash:
- replace the PRESS SW-CABIN PRESS DET (14WN) (Ref. AMM TASK 52-73-12-000-001) and (Ref. AMM TASK 52-73-12-400-001).
(2) If the warning light panels of the doors flash:
(a) Disconnect the connector of the warning light panel 17WN1.
(b) If the warning light panels of the FWD doors do not flash:
- do a check for a short to ground at pin D of the connector of the warning light panel 17WN1 (Ref. ASM 52-73/02).
1 If there is a short to ground:
_
- do a check and repair the wiring from the warning light panel 17WN1 to the warning light panel 17WN2, pin D to pin C, (Ref. ASM 52-73/02).
2 If there is no short to ground:
_
- connect the connector of the warning light panel 17WN1 again and disconnect the connector of the warning light panel 17WN2.
a Install a jumper wire between the pin G/H of the connector
_ of the warning light panel 17WN2.
b If the warning light panels flash at the other doors:
_
- replace the WARN LT PNL-CABIN PRESSURE, AFT L DOOR (17WN1) (Ref. AMM TASK 52-73-22-000-002) and (Ref. AMM TASK 52-73-22-400-002).
c If the warning light panels do not flash at the other
_
doors:
「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, ∞∞52-73-00∞∞∞∞∞∞∞∞∞∞Page 202
201-299, 401-499, Aug 01/05 CES
- replace the WARN LT PNL-CABIN PRESSURE, AFT R DOOR (17WN2) (Ref. AMM TASK 52-73-22-000-002) and (Ref. AMM TASK 52-73-22-400-002).
(c) If the warning light panels of the FWD passenger/crew doors flash:
- disconnect the connector of the warning light panel 16WN2.
1 If the warning light panel 16WN1 does not flash:
_
- do a check for a short to ground at pin C of the connector of the warning light panel 16WN2.
a If there is a short to ground:
_
- do a check and repair the wiring from the cabin pressure detection pressure switch 14WN and the warning light panel 16WN2, pin B to pin C (Ref. ASM 52-73/02).
b If there is no short to ground:
_
- replace the WARN LT PNL-CABIN PRESSURE, FWD R DOOR (16WN2) (Ref. AMM TASK 52-73-22-000-001) and (Ref. AMM TASK 52-73-22-400-001).
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