What was found
B.S. 663 LOWER COMPOSITE BULKHEAD VERTICAL STIFFENER IS CRACKED AT L.B.L 25; W.L. 150. / REMOVED AND REPLACED BULKHEAD VERTICAL STIFFENER B.S 663 LBL25 WL150 PER SRM 51-40-02 SRM 51-40-05 DWG 11A1000 AND DWG 111A1001
- Difficulty date
- August 29, 2019
- Submitted
- March 16, 2022
- Operation
- Air carrier
- Aircraft
- N413WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 29819
- Aircraft time
- 62,273 hours, 36,091 cycles
- System (JASC)
- 5310 · Fuselage Main, Structure
- Part
- Stiffener
- Condition
- Cracked
- Location
- Fuselage
- 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.