- Difficulty date
- September 1, 2023
- Submitted
- September 26, 2023
- Operation
- Air carrier
- Make and model
- Boeing 73779P
- Aircraft serial
- 33008
- Aircraft time
- 49,620 hours, 33,734 cycles
- Part
- Rib
- Part number
- UNKNOWN
- Condition
- Cracked
- Location
- Zn 300 Stabilize
- 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
L/H HORIZONTAL STABILIZER 4TH VERTICAL STIFFENER FROM L/E IS CRACKED AT BS 129.5; INSPAR RIB 5<[01] REMOVED CRACK DAMAGE LEFT HAND HORIZONTAL STABILIZER 4TH VERTICAL STIFFENER FROM LEADING EDGE AT STAB STA 129.50 INSPAR RIB 5 AND INSTALLED REPAIR IAW SRM 55-10-09-2R-4 REPAIR 4.;[02] VERIFIED APPLICABILITY OF SRM 55-10-09-2R-4 REPAIR 4.;[03] VERIFIED CORRECTIVE ACTION 1;[04] VERIFIED CORRECTIVE ACTION 2 AND MEASUREMENT TABLE