What was found
FCD SURROUND STRUCTURE; SUB THRESHOLD BS 440 TO 490, RBL 22, WL 156 HAS SEVERAL SPOTS OF CORROSION. REMOVED AND REPLACED SUB THRESHOLD WEB IAW SRM 51-40-02-0G-0 AND DWG 143A8330 REV G.
- Difficulty date
- December 22, 2025
- Submitted
- January 19, 2026
- Operation
- Air carrier
- Aircraft
- N946WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 36918
- Aircraft time
- 50,632 hours, 31,066 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Web
- Condition
- Corroded
- 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.