W DOC AIRBUS | TSM A320F

EQUIP/FURNIS - DOOR AREA HEATING - All heated floor panels are INOP


TASK 25-27-00-810-809-A
EQUIP/FURNIS - DOOR AREA HEATING - All heated floor panels are INOP


1. Possible Causes
  • CONTACTOR, GALLEY PWR -A- [6MC]
  • C/B-DOOR AREA HTG PANELS-CTL [54DS]
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
TSM TASK 24-56-00-810-801-A
Galley Supply Fault
AMM 24-56-00-710-001
Operational Test of the Galley Supply
AMM 24-56-55-000-002
Removal of the Contactor Located in the Panel 200VU
AMM 24-56-55-400-002
Installation of the Contactor Located in the Panel 200VU
AMM 25-27-00-740-001
Bite Test of the Heated Floor Panel System
ASM 252701
ASM 252702
ASM 252703
3. Fault Confirmation
Subtask 25-27-00-740-066-A ** ON A/C NOT FOR ALL
A. Maintenance Action
   (1) Do the operational test of the galley supply AMM 24-56-00-710-001.
     (a) If the test is not OK:
     (b) If the test is OK:
4. Fault Isolation
Subtask 25-27-00-810-070-A ** ON A/C NOT FOR ALL
A. If the test indicators on all control units do not come on:
  • Do a check of the aircraft wiring from the relay base 6MC-B, pin 21 to the associated terminal block, ASM 252701 and ASM 252703
    and
  • Do a check of the aircraft wiring from the relay base 6MC-B, pin 17 to the associated terminal block, ASM 252702.
   (1) If there is no continuity:
  • Repair the aircraft wiring from the relay base 6MC-B, pin 21 to the associated terminal block, ASM 252701 and ASM 252703
    and/or
  • Repair the aircraft wiring from the relay base 6MC-B, pin 17 to the associated terminal block, ASM 252702.
   (2) If there is continuity:
     (a) If the fault continues:
  • Do a check of the aircraft wiring from the relay base 6MC-B, pin 19 to the circuit breaker 54DS, pin 2 ASM 252703.
       1 If there is continuity:
  • Replace the circuit breaker C/B-DOOR AREA HTG PANELS-CTL [54DS] .
       2 If there is no continuity:
  • Repair the aircraft wiring from the relay base 6MC-B, pin 19 to the circuit breaker 54DS, pin 2 ASM 252703.
Subtask 25-27-00-810-070-B ** ON A/C NOT FOR ALL
A. If the test indicators on all control units do not come on:
Subtask 25-27-00-740-067-A ** ON A/C NOT FOR ALL
B. Do the test given in Para. 3.A.(1)(b)
[Rev.8 from Aug 2018] 2026.04.04 04:27:01 UTC