# SDR CKSA96022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 29, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N625PL](https://openairdocs.org/aircraft/N625PL), registered now
- Make and model: Boeing 747132
- Aircraft serial: 20247
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: A12 Card
- Part number: 60B0002388
- Condition: Failed
- Location: Apu
- Part time: 76,066 hours
- Stage of operation: CR
- Nature of condition: N
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CKSA96022

## Discrepancy

KSUU - APU FIRE WARNING AND MASTER LIGHT WITH BELL WENT OFF, PULLED HANDLE AND DISCHARGED BOTTLE.  TROUBLESHOT SYSTEM FOUND A12 AND APU 'LOOP B FIRE' BAD FIRE WARNING NO LONGER USEABLE.  TRANSFERRED TO DMI 342 FOR FURTHER TROUBLESHOOTING, PULLED AND COLLARD APU CIRCUIT BREAKERS IAW MEL 49-1 PLACARDS INSTALLED.  (M)

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