# SDR AALA960921

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 16, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N1431B](https://openairdocs.org/aircraft/N1431B), registered now
- Make and model: Fokker F.28 MK 0100
- Registry model: [Fokker F.28 MK 0100](https://openairdocs.org/model/fokker-f-28-mk-0100) (OpenAirDocs)
- Aircraft serial: 11416
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Control Unit
- Part number: 900045
- Condition: Defective
- Location: Apu
- Component: Systrondonnr
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA960921

## Discrepancy

RDU - FLT 1826 - DURING APPROACH TO RDU, APU FIRE INDICATION ILLUMINATED FOR APPROXIMATELY 2 SECONDS AND THEN EXTINGUISHED.  SIMULTANEOUSLY, APU AUTO-SHUTDOWN.  APU FIRE BOTTLE DISCHARGED AND AIRCRAFT LANDED RDU WITHOUT INCIDENT.  REPLACED APU FIRE BOTTLE AND PLACARDED APU INOPERATIVE.  SUBSEQUENTLY, REPLACED APU FIRE DETECTION CONTROL UNIT AT ORD/17.  SYSTEM GROUND CHECKED NORMAL OPERATION.  APU OPERATION WITH AIR AND ELECTRIC CHECKED NORMAL.  (X)

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