- Difficulty date
- February 26, 2026
- Submitted
- March 26, 2026
- Operation
- Air carrier
- Make and model
- Boeing 7377H4
- Aircraft serial
- 36627
- Aircraft time
- 57,855 hours, 35,265 cycles
- Part
- Stiffener
- Condition
- Cracked
- Location
- Zone 300
- Stage of operation
- IN
- How discovered
- V
- 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
RH HORIZONTAL STAB INSPAR RIB #4 (STA 120.30) AFT STIFFINER IS CRACKED AT LOWER RADIUS<[01] REMOVED; REPAIRED; AND REINSTALLED RIB #4 STA 120.30 PER SRM 55-10-09-2R-5; SRM 51-40-02-0G-0; DWG 182A4001 REV:D; DWG 182A3001 REV: F; AND DWG 182A5304 REV: C. AND DWG 182A2401. REV: F.;[02] VERIFIED CORRECTIVE ACTION ITEM 1.;[03] TASK CARD COMPLET.