# SDR IPXA2022121954390

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 2022
- Submitted: December 19, 2022
- Operation: Air carrier
- Aircraft: [N573UP](https://openairdocs.org/aircraft/N573UP), registered now
- Make and model: Boeing 747-44AF
- Registry model: [Boeing 747-44AF](https://openairdocs.org/model/boeing-747-44af) (OpenAirDocs)
- Aircraft serial: 35662
- Aircraft time: 53,649 hours, 8,408 cycles
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Control Card
- Condition: Faulted
- Location: Apu Fire Detect
- Stage of operation: CR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2022121954390

## Discrepancy

MOMENTARY "FIRE APU" EICAS WITH MOMENTARY FIRE LIGHT IN APU FIRE SWITCH HANDLE IN CRUISE FLIGHT APU COMPARTMENT OPENED AND INSPECTED WITH NO FINDINGS.<BR>T/S C/O IAW FIM 26-15-00-812-801 REV 105.00.<BR>NO RELATED FAULTS FOUND ON CMC PRESENT LEG AND EXISTING FAULT.<BR>CONTROL CARD YLPA021 REPLACED IAW AMM 26-10-01-401 REV 105.01. OPS TEST C/O SATIS.

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