What was found
CENTER TANK RIB CRACKED AT BS 540, LBL 25, WL 202. REPLACED VERTICAL STIFFENER RIB AND FASTENER LOCATED IAW SRM 51-40-02, SRM 51-10-02, ITEM 9, DWG 111A2001, SHEET 77, REV-, & DWG 111A6000, SHEET 301, REV-.
- Difficulty date
- November 20, 2025
- Submitted
- December 16, 2025
- Operation
- Air carrier
- Aircraft
- N452WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 29846
- Aircraft time
- 71,355 hours, 42,914 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Stiffener
- Condition
- Cracked
- Location
- Zone 100
- 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.