What was found
WHILE ACCOMPLISHING T/C 78349000 FOUND SIGMA SEAL HEIGHT FROM THE BOTTOM TO THE TOP AT 1.15". HEIGHT IS OUT OF LIMITS. GROUNDED - YES. REMOVED AND REPLACE SIGMA SEAL REF AMM 49-15-11.
- Difficulty date
- October 5, 2018
- Submitted
- October 9, 2018
- Operation
- Air carrier
- Aircraft
- N435AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43292
- Aircraft time
- 19,946 hours, 6,575 cycles
- System (JASC)
- 4910 · APU Cowling/Containment
- Part
- Seal
- Part number
- B0E23530001
- Condition
- Out Of Limits
- Location
- Apu Inlet
- 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.