What was found
RIB 5 ON LEFT HORIZONTAL STAB; STIFFENER 4 HAS CRACK AT BOTTOM.; STA 129.50 / INSTALLED REPAIR PARTS AT STIFFENER #4 RIB #5 AT L/HORIZONTAL STAB PER REF B737-700 SRM 55-10-09-2R-4 REPAIR 4(A).
- Difficulty date
- June 3, 2020
- Submitted
- June 29, 2020
- Operation
- Air carrier
- Aircraft
- N7704B
- Make and model
- Boeing 7377BD
- Aircraft serial
- 33918
- Aircraft time
- 53,904 hours, 28,389 cycles
- System (JASC)
- 5510 · Horizontal Stabilizer Structure
- Part
- Stiffener
- 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.