What was found
LEFT HORIZ STAB RIB 4 (STAB STA 120.30) APPEARS TO BE CRACKED AT LWR AREA OF STIFFENER #3. 8-37 / INSTALLED REPAIR PARTS AT LEFT HORZ. STAB. RIB #4 (STAB-STA. 120.30) STIFFENER #3 PER B737-700 SRM 55-10-09-2R-4
- Difficulty date
- February 16, 2021
- Submitted
- March 19, 2021
- Operation
- Air carrier
- Aircraft
- N436WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 32456
- Aircraft time
- 60,477 hours, 35,616 cycles
- System (JASC)
- 5511 · Horizontal Stabilizer, Spar/Rib
- Part
- Rib
- Condition
- Cracked
- Location
- L/H Horiz. 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.