What was found
LT HORIZONTAL STABILIZER RIB ASSEMBLY CRACKED AT STAB STA 120.30, BETWEEN 2ND AND 4TH VERTICAL STIFFENERS. REPAIRED RIB ASSEMBLY PER SRM.
- Difficulty date
- September 23, 2017
- Submitted
- October 10, 2017
- Operation
- Air carrier
- Aircraft
- N557WN
- Make and model
- Boeing 737790
- Aircraft serial
- 30166
- Aircraft time
- 55,212 hours, 25,579 cycles
- System (JASC)
- 5511 · Horizontal Stabilizer, Spar/Rib
- Part
- Rib
- Part number
- 186A1401
- Condition
- Cracked
- Location
- Lt Horiz Stab
- 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.