What was found
APU FIREWALL FWD FACE AT BS 2658, NR 2 STIFFENER FOUND CRACKED. THE FIREWALL STIFFENER WAS REPAIRED IAW RL-53-83-12510, REV A.
- Difficulty date
- March 8, 2018
- Submitted
- March 13, 2018
- Operation
- Air carrier
- Aircraft
- N407KZ
- Make and model
- Boeing 7474KZF
- Aircraft serial
- 36134
- Aircraft time
- 36,135 hours, 6,988 cycles
- System (JASC)
- 4910 · APU Cowling/Containment
- Part
- Stiffener
- Condition
- Cracked
- Location
- Apu Firewall
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.