What was found
DURING APU START ON GROUND APU FIRE WARNING SOUNDED. PULLED HANDLE AND DISCHARGED BOTTLE. FOUND DIRTY CONTROL BOX CONTACTS. CLEANED CONTACTS.
- Difficulty date
- October 20, 2007
- Submitted
- October 23, 2007
- Operation
- Air carrier
- Aircraft
- N937UA
- Make and model
- Boeing 737522
- Aircraft serial
- 26668
- Aircraft time
- 42,550 hours, 26,716 cycles
- Engine
- Cfmint CFM563C1
- System (JASC)
- 2697 · Fire Protection System Wiring
- Part
- Contact
- Condition
- Dirty
- Location
- Apu Fire Detect
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.