# SDR AALA202305018457

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2023
- Submitted: May 1, 2023
- Operation: Air carrier
- Aircraft: [N780AN](https://openairdocs.org/aircraft/N780AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29956
- Aircraft time: 87,043 hours, 11,239 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Control Card
- Part number: 47348709
- Condition: Faulty
- Location: Zone 200 - Fuse
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202305018457

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: FIRE LOOP 1 APU STATUS MESSAGE. MAINTENANCE FOUND MULTIPLE FAULTS ON APU FIRE CONTROL CARD. REMOVED AND REPLACED APU FIRE CONTROL CARD PER AMM 26-15-03.

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