What was found
L/H VERTICAL STIFFENER ON THE AFT SIDE OF BS663 LOWER VAPOR BARRIER LBL25 IS CRACKED AT WL145 / REMOVED AND REPLACED L/H VERTICAL STIFFENER ON THE AFT SIDE OF BS663 LOWER VAPOR BARRIER LBL25; WL145 IAW DWG 111A1000 AND DWG 149A7210.
- Difficulty date
- June 10, 2020
- Submitted
- June 30, 2020
- Operation
- Air carrier
- Aircraft
- N481WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 29853
- Aircraft time
- 55,339 hours, 32,689 cycles
- System (JASC)
- 5312 · Fuselage Main, Bulkhead
- Part
- Stiffener
- Part number
- 111A1000
- Condition
- Cracked
- Location
- Bs 663 Bulkhead
- 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.