What was found
CRACK RAIL NUT PLATES, LEADING EDGE INTERNAL CAVITY LOCATED OF SS 499, LT WING. REPLACED RAIL NUT PLATES ON LEADING EDGE INTERNAL CAVITY LOCATED OFSS499, LT WING; IAW 51-40-02, DWG 112A4402, SHEET 13, REV - CRACK LENGTH: 0.449 IN.
- Difficulty date
- October 31, 2025
- Submitted
- December 4, 2025
- Operation
- Air carrier
- Aircraft
- N231WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 32499
- Aircraft time
- 65,270 hours, 39,217 cycles
- System (JASC)
- 5740 · Wing, Attach Fittings
- Part
- Nut Plate
- Condition
- Cracked
- Location
- Zone 500
- 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.