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
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 25-27-00-740-066-A ** ON A/C NOT FOR ALL
Subtask 25-27-00-810-070-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:27:01 UTC
EQUIP/FURNIS - DOOR AREA HEATING - All heated floor panels are INOP
1. Possible Causes
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 |
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:
4. Fault Isolation(1) Do the operational test of the galley supply AMM 24-56-00-710-001.
(a) If the test is not OK:
- Do the fault isolation procedure of the galley supply (Ref. TSM TASK 24-56-00-810-801).
- Do the Bite Test of the Heated Floor Panel System AMM 25-27-00-740-001.
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:
Subtask 25-27-00-810-070-B ** ON A/C NOT FOR ALL - 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.
- 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.
- Replace the CONTACTOR, GALLEY PWR -A- [6MC] AMM 24-56-55-000-002 and AMM 24-56-55-400-002.
- Do a check of the aircraft wiring from the relay base 6MC-B, pin 19 to the circuit breaker 54DS, pin 2 ASM 252703.
- Replace the circuit breaker C/B-DOOR AREA HTG PANELS-CTL [54DS] .
- Repair the aircraft wiring from the relay base 6MC-B, pin 19 to the circuit breaker 54DS, pin 2 ASM 252703.
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 - Replace the CONTACTOR, GALLEY PWR -A- [6MC] AMM 24-56-55-000-002 and AMM 24-56-55-400-002.
B. Do the test given in Para. 3.A.(1)(b)