What was found
CRACKED LEADING EDGE RIB ACCESS PANEL 331B, LE STA 114.55, LT HORIZONTAL STAB. REPLACED THE RIB IAW SRM 51-40-02 AND DWG 186A1305 SHEET 1 REV A; 1186A1001 SHEET 11 REV A. MEASUREMENT OF CRACK:0.285 INCH.
- Difficulty date
- December 9, 2025
- Submitted
- January 2, 2026
- Operation
- Air carrier
- Aircraft
- N457WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 33856
- Aircraft time
- 71,473 hours, 42,999 cycles
- System (JASC)
- 5511 · Horizontal Stabilizer, Spar/Rib
- Part
- Rib
- Condition
- Cracked
- Location
- Zone 300
- 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.