What was found
DURING DESCENT, THE MASTER FIRE WARNING BELL SOUNDED AND THE LIGHTS ILLUMINATED INTERMITTENTLY. AIRCRAFT CONTINUED DESCENT AND LANDED WITHOUT INCIDENT. REPLACED APU FIRE DETECTOR CARD. OPERATIONAL CHECK GOOD.
- Difficulty date
- July 31, 2002
- Submitted
- August 2, 2002
- Operation
- Air carrier
- Aircraft
- N617US
- Make and model
- Boeing 747251F
- Aircraft serial
- 21121
- Aircraft time
- 88,977 hours, 22,544 cycles
- System (JASC)
- 2612 · Fire Detection
- Part
- Circuit Card
- Condition
- Faulty
- Location
- Fire Warning
- Stage of operation
- DE
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.