- Difficulty date
- February 14, 2021
- Submitted
- March 2, 2021
- Operation
- Air carrier
- Make and model
- Boeing 7377BD
- Aircraft serial
- 33936
- Aircraft time
- 31,414 hours, 18,587 cycles
- Part
- Stiffener
- Condition
- Cracked
- Location
- 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.
What was found
RIB ASSY 4 (STAB STA 120.30) STIFFINER 2; 3; AND 4 HAVE CRACKS ON THE LOWER PART OF THE STIFFENER. / REPAIRED STIFFENERS 2; 3 & 4 @ STAB STA 120.30 (RIB ASSY 4) IAW SRM - 51-40-02-0G-0 - SRM 55-10-09-2R-4; DWG #S 182A1500; 182A3001 & 002A0001 56304U 22FEB21