What was found
AIRCRAFT WAS IN BASE MAINTENANCE. CRACKED AUXILIARY POWER UNIT INLET DUCT PLENUM ASSEMBLY FRAME. REPLACED PLENUM FRAME PER SRM 53-80-30-01 AND AMM 49-15-15.
- Difficulty date
- September 28, 2017
- Submitted
- October 3, 2017
- Operation
- Air carrier
- Aircraft
- N929AN
- Make and model
- Boeing 737823
- Aircraft serial
- 30078
- Aircraft time
- 52,669 hours, 21,639 cycles
- System (JASC)
- 4950 · APU Bleed Air System
- Part
- Frame
- Part number
- 353A20303
- Condition
- Cracked
- Location
- Apu
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.