What was found
FWD CARGO LOWER DOOR THRESHOLD WEB HAS CORROSION AT STA 470. GROUNDED - YES. FOUND TO BE EXFOLIATED MORE THAN 50% THROUGH REMOVED AND REPLACED WEB IAW B737-900 SRM 51-40-02-0G-0W=6 O=.045 R=0 L=10 D=.045.
- Difficulty date
- August 23, 2022
- Submitted
- September 19, 2022
- Operation
- Air carrier
- Aircraft
- N315AS
- Make and model
- Boeing 737990
- Aircraft serial
- 30019
- Aircraft time
- 65,333 hours, 26,401 cycles
- System (JASC)
- 5310 · Fuselage Main, Structure
- Part
- Threshold Web
- Part number
- NPN
- Condition
- Corroded
- Location
- Fwd Cargo 470
- 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.