What was found
AIRCRAFT IN BASE MAINTENANCE: AFT CABIN STA 949, RIGHT BUTT LINE 24, LAVATORY MOUNT INTERCOSTAL HAS CORROSION UNDER THE AFT IN BOARD CORNER OF THE LAVATORY MOUNT. REPLACEMENT INTERCOSTAL INSTALLED PER AARD 51-00-05-1 AND SRM 51-40-02.
- Difficulty date
- December 16, 2021
- Submitted
- January 4, 2022
- Operation
- Air carrier
- Aircraft
- N822NN
- Make and model
- Boeing 737*
- Aircraft serial
- 31085
- Aircraft time
- 36,185 hours, 14,726 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Intercostal
- Condition
- Corroded
- Location
- Zone 200 - Fuse
- 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.