What was found
AFT PIT LOWER SILL BEAM IS CORRODED ON UPPER AND LOWER SURFACES. REMOVED AND REPLACED LOWER SILL WEB IAW B737 400 SRM 51 40 02.
- Difficulty date
- February 21, 2011
- Submitted
- February 26, 2011
- Operation
- Air carrier
- Aircraft
- N797AS
- Make and model
- Boeing 737490
- Aircraft serial
- 28892
- Aircraft time
- 41,492 hours, 22,802 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Sill
- Part number
- 69434772
- Condition
- Corroded
- Location
- Fuselage
- 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.