What was found
BEFORE DEPARTURE FOUND APU FIRE EXTINGUISHER SQUIB TEST INOP. SUSPECT SQUIB TEST MODULE SWITCH FAULTY. LUBRICATED SQUIB TEST SWITCHES AND OP CHECKED SQUIB TEST MODULE PER MM 26-21-02 PG.405. OP CHECKED GOOD. AC OK FOR SERVICE.
- Difficulty date
- May 22, 2008
- Submitted
- May 27, 2008
- Operation
- Air carrier
- Aircraft
- N195UA
- Make and model
- Boeing 747422
- Aircraft serial
- 26899
- Aircraft time
- 44,973 hours, 5,504 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 2612 · Fire Detection
- Part
- Module
- Part number
- 233U42039
- Condition
- Faulty
- Location
- Apu Extinguisher
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.