What was found
APU SIGMA SEAL OUT OF LIMITS REF T/C 78349000. GROUNDED - YES. REMOVED AND REPLACED APU SIGMA SEAL REF AMM 49-15-11.
- Difficulty date
- January 19, 2017
- Submitted
- January 23, 2017
- Operation
- Air carrier
- Aircraft
- N597AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35689
- Aircraft time
- 33,379 hours, 10,332 cycles
- System (JASC)
- 4910 · APU Cowling/Containment
- Part
- Seal
- Part number
- 353A40801
- Condition
- Worn
- 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.