What was found
AFT CARGO DOOR CUTOUT LOWER SILL WEB HAS SPOTS OF CORROSION. GROUNDED - YES. REMOVED AND REPLACED SILL WEB WITH NEW IAW B737-900 SRM 51-40-02-0G-0W=1 O=.050 R=.041 L=4 D=.009.
- Difficulty date
- December 1, 2022
- Submitted
- December 19, 2022
- Operation
- Air carrier
- Aircraft
- N317AS
- Make and model
- Boeing 737990
- Aircraft serial
- 30856
- Aircraft time
- 64,037 hours, 25,906 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Web
- Part number
- 146A8110
- Condition
- Corroded
- Location
- Aft Cargo
- 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.