What was found
AIRCRAFT IN BASE MAINTENANCE: CORROSION TO SEAL SUPPORT INTERCOSTAL ON AFT PRESSURE BULKHEAD AT BS 1016, FROM LBL 8 TO LBL 30. REPLACED INTERCOSTAL PER AARD 51-00-05-1.
- Difficulty date
- October 25, 2025
- Submitted
- January 14, 2026
- Operation
- Air carrier
- Aircraft
- N907AN
- Make and model
- Boeing 737823
- Aircraft serial
- 29509
- Aircraft time
- 74,732 hours, 31,157 cycles
- System (JASC)
- 5312 · Fuselage Main, Bulkhead
- Part
- Intercostal
- 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.