Service difficulty report · Smoke Detector · Boeing 747422
FAA SDR system
- Difficulty date
- September 25, 2012
- Submitted
- September 28, 2012
- Operation
- Air carrier
- Aircraft
- N174UA
- Make and model
- Boeing 747422
- Aircraft serial
- 24381
- Aircraft time
- 88,456 hours, 9,873 cycles
- Engine
- Pwa PW4056
- Part
- Smoke Detector
- Condition
- Failed
- Location
- E&E Bay
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
E AND E SMOKE DETECTOR FAIL MSG 21501. REPLACED COOLING SMOKE DETECTOR, OP CHECKED OKAY.