What was found
APU INOPERABLE, TRANSFERRED TO MEL 49-11-01A, MDDR #133991, CAT C. REMOVED AND REPLACED APU, IAW WORK CARD A-49-999-00-01. REVERSE FLOW MESSAGE ON ECU CLEARED. THIS CLEARS MDDR 133991, MCC NOTIFIED. PLACARD REMOVED.
- Difficulty date
- September 6, 2020
- Submitted
- September 16, 2020
- Operation
- Air carrier
- Aircraft
- N1181A
- Make and model
- Boeing 7673Y0
- Aircraft serial
- 26206
- Aircraft time
- 88,449 hours, 22,183 cycles
- System (JASC)
- 4920 · APU Core Engine
- Part
- Apu
- Part number
- 380029814
- Part serial
- P2353
- Condition
- Inoperative
- Location
- Apu Bay
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K, O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.