- Difficulty date
- July 23, 2019
- Submitted
- March 14, 2022
- Operation
- Air carrier
- Make and model
- Boeing 7377H4
- Aircraft serial
- 32544
- Aircraft time
- 40,892 hours, 24,383 cycles
- Part
- Stiffener
- Condition
- Cracked
- Location
- Horizontal 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
RT HORIZONTAL STABILIZER BOX RIB 4 2ND STIFNER {FACING FWD TO AFT }LOWER EDGE AREA CRACKED.MKD 126-002 / AT RIB #4; STIFNER #2 CUTOUT AREA DAMAGED PER B737 SRM 55-10-09-2R-4; AFTER REWORK NDT CHECK AREA NO CRACK FOUND; LOCATED AND DRILLED REPAIR KIT #55100003-1 IAW SRM 55-10-09-2R-4; TREATED; PRIMED AND INSTALLED REPAIR IAW B737 SRM 55-10-09-2R-4 REPAIR#4.