4. Fault Isolation
_______________
A. Do the procedure: - on the GPWS section of panel 21VU, make sure that the GPWS/FLAP MODE pushbutton switch (7WZ) is pushed (the OFF legend is on)
- on the center pedestal, on the panel 114VU, put the flap and slat control lever in the 0 position
- make sure that there is ground at pin AB/9C of the GPWC (1WZ).
(1) If there is no ground:
- do a check of the wiring of the GPWS/FLAP MODE pushbutton switch (7WZ): . pin A/B3 to the ground point . pin A/B1 to GPWC (1WZ) pin AB/9C (Ref. ASM 34-48/01).
(a) If there is no continuity:
- repair the above wirings.
(b) If there is continuity:
- replace the P/BSW-GPWS/FLAP MODE (7WZ) (Ref. AMM TASK 33-10-00-000-002) and (Ref. AMM TASK 33-10-00-400-002).
「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 ∞∞34-48-00∞∞∞∞∞∞∞∞∞∞Page 252
May 01/03R
CES Continuous Selection of the LDG FLAP 3 Position
1. Possible Causes
_______________
- wiring of the GPWS/LDG FLAP 3 pushbutton switch (13WZ)
- P/BSW-GPWS/LDG FLAP 3 (13WZ)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
ESPM 204511
ASM 34-48/01
3. Fault Confirmation
__________________
A. Test
Not applicable, you cannot confirm this fault on the ground.
4. Fault Isolation
_______________
A. Do the procedure:
- on the GPWS section of panel 21VU: . make sure that the GPWS/LDG FLAP 3 pushbutton switch (13WZ) is not pushed (the ON legend is off) . make sure that the GPWS/FLAP MODE pushbutton switch (7WZ) is not pushed (the OFF legend is off).
- on the center pedestal, on the panel 114VU, put the flap and slat control lever in the 3 position
- make sure that there is no ground at pin AB/9C of the GPWC (1WZ).
(1) If there is ground:
- do a check for a short to ground at the wiring of the GPWS/LDG FLAP 3 pushbutton switch (13WZ): . pin A/B3 to GPWC (1WZ) pin AB/9C . pin A/B2 to SFCC1 (21CV) pin AB/8B (Ref. ASM 34-48/01).
(a) If there is a short to ground:
- repair the above wiring.
(b) If there is no short to ground:
- replace the P/BSW-GPWS/LDG FLAP 3 (13WZ) (Ref. ESPM 204511).
「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 ∞∞34-48-00∞∞∞∞∞∞∞∞∞∞Page 253
May 01/03R CES
Selection of the LDG FLAP 3 Position not Possible
1. Possible Causes
_______________
- SFCC-1 (21CV)
- wiring of the GPWS/LDG FLAP 3 pushbutton switch (13WZ)
- P/BSW-GPWS/LDG FLAP 3 (13WZ)
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION
-------------------------------------------------------------------------------
AMM 27-51-34-000-001 Removal of the SFCC (21CV,22CV)
AMM 27-51-34-400-001 Installation of the SFCC (21CV,22CV)
AMM 33-10-00-000-002 Removal of the Bulbs and the Body of a Pushbutton
Switch in the Cockpit
AMM 33-10-00-400-002 Installation of the Bulbs and the Body of a
Pushbutton Switch in the Cockpit
ASM 34-48/01
3. Fault Confirmation
__________________
A. Test
Not applicable, you cannot confirm this fault on the ground.
4. Fault Isolation
_______________
A. Do the procedure:
- on the GPWS section of panel 21VU: . make sure that the GPWS/LDG FLAP 3 pushbutton switch (13WZ) is pushed (the ON legend is on) . make sure that the GPWS/FLAP MODE pushbutton switch (7WZ) is not pushed (the OFF legend is off).
- on the center pedestal, on the panel 114VU, put the flap and slat control lever in the 3 position
- make sure that there is ground at pin AB/9C of the GPWC (1WZ).
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