# SDR MZZA96061

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 1996
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N624DH](https://openairdocs.org/aircraft/N624DH), registered now
- Make and model: Boeing 727264
- Aircraft serial: 20709
- System (JASC): [2612 · Fire Detection](https://openairdocs.org/jasc/2612)
- Part: Fire Detection
- Part number: 65249203
- Condition: Failed
- Location: Ee Compartment
- Stage of operation: IN
- Nature of condition: N
- Precautionary procedure: F
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MZZA96061

## Discrepancy

MNL - FLT 879 - ON GROUND IN MNL, CREW STARTED APU.  AFTER APPROXIMATELY 8 MINUTES RECEIVED APU FIRE WARNING.  CREW C/W EMERGENCY PROCEDURES TO PULL FIRE HANDLE AND FIRE BOTTLE.  PER CREW COMMENTS, APU GENERATOR OPERATED NORMALLY - 116 VAC 403 CYC.  FREQUENCY AND EGT ALSO REPORTED NORMAL.  REMOVED APU SHROUD PANELS AND CHECKED FOR EVIDENCE OF FIRE.  NO EVIDENCE OF FIRE FOUND DURING INSPECTION.  RE-INSTALLED AND SECURED PANELS, DEACTIVATED APU PER DDP 49-1 AND SECURED INOPERATIVE APU PER MM 49-00, PAGE 220.  AIRCRAFT RELEASED PER MEL 49-01.  SUSPECT APU FIRE OVERHEAT AND DETECTOR UNIT AS THE SOURCE OF FALSE WARNING.  FOUND MOISTURE AROUND UNIT AFTER VERY HEAVY RAINFALL.  (X)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.