What was found
AIRCRAFT IN BASE MAINTENANCE: TOP FLANGE OF INTERCOSTAL AT FS 394 LBL 14 IS CRACKED AROUND FLOORBOARD HOLE. REMOVED AND REPLACED TOP FLANGE OF INTERCOSTAL PN 143A5410-174 IAW AARD 51-00-05-1 AND BOEING DWG 143A5400.
- Difficulty date
- August 25, 2026
- Submitted
- September 2, 2026
- Operation
- Air carrier
- Aircraft
- N958NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31203
- Aircraft time
- 35,278 hours, 14,809 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Floor Support
- Part number
- 143A5410174
- Condition
- Cracked
- Location
- Zone 200
- 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.