What was found
WEX WARNING ELECTRONICS IS INTERMITTENT CAUSING ENG FIREX & APU FIREX CHECKS TO FAIL AS WELL AS EGPWS FAILURES. REPLACED B POWER SUPPLY & M107 27 CARDS IAW MM31-51-04. MSG CLEARED, OPERATIONS TESTED NORMAL.
- Difficulty date
- March 25, 2014
- Submitted
- March 28, 2014
- Operation
- Air carrier
- Aircraft
- N659UA
- Make and model
- Boeing 767322
- Aircraft serial
- 27114
- Aircraft time
- 91,523 hours, 14,476 cycles
- Engine
- Pwa PW4060
- System (JASC)
- 3150 · Central Warning
- Part
- Power Supply
- Condition
- Faulty
- Location
- Warning System
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.