What was found
AFT PIT DOOR SILL BEAM UPPER CHANNEL UNDER FWD SHIELD PANEL IS CORRODED. GROUNDED - YES. REMOVED AND REPLACED CHANNEL AIW B737-900ER SRM 51-40-02-0G-0W: 1 O: .040 R: 0 L: 2 D: .040.
- Difficulty date
- May 21, 2021
- Submitted
- June 1, 2021
- Operation
- Air carrier
- Aircraft
- N487AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44108
- Aircraft time
- 20,748 hours, 6,492 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Door Sill
- Part number
- 146A812553
- 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.