What was found
LEFT HORIZ STAB INSPAR RIB ASSY #5; AT STA 129.50; HAS A CRACK AT STIFFENER # 4 LOWER AREA. (MKD 78-13). REPAIRED STIFFENER #4 AT RIB #5 STA 129.50 AS PER REF B737-700 SRM 55-10-09-2R-4
- Difficulty date
- August 11, 2020
- Submitted
- August 27, 2020
- Operation
- Air carrier
- Aircraft
- N494WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 33868
- Aircraft time
- 54,277 hours, 32,309 cycles
- System (JASC)
- 5510 · Horizontal Stabilizer 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.