What was found
RIB ASSY. 4 (STAB STA 120.30) 4TH VERT STIFFENER IS CRACKED. RIB ASSY. 4 (STAB STA 120.30) 4TH VERT STIFFENER WAS REPAIRED ON CUST CARD #U283732; SA-M 326 #A1265545; A1265546.
- Difficulty date
- February 24, 2021
- Submitted
- March 2, 2021
- Operation
- Air carrier
- Aircraft
- N556WN
- Make and model
- Boeing 7377BD
- Aircraft serial
- 33936
- Aircraft time
- 31,414 hours, 18,587 cycles
- System (JASC)
- 5520 · Elevator Structure
- Part
- Stiffener
- Condition
- Cracked
- Location
- Horizontal Stab
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.