- Difficulty date
- May 6, 2021
- Submitted
- June 4, 2021
- Operation
- Air carrier
- Make and model
- Boeing 7377H4
- Aircraft serial
- 32491
- Aircraft time
- 52,961 hours, 31,490 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
DOT 19_A22: LEFT HORIZONTAL STAB; RIB STA 120.30; RIB STIFFENER #3 CRACKED 1' ABOVE LOWER FLANGE. ; / REMOVED DAMAGE FROM L/H HORIZ STAB RIB STA 120.3; RIB STIFFENER #3 CRACKED 1' ABOVE LOWER FLANGE IAW B737 SRM 55-10-09-2R-4. REPAIRED PER 55-10-09-2R-4 CIC APPLIED AFTER COMPLETION OF EA 21-155-01399-WIP1 REV P1 AND FINAL (TTG8Q0054PWX & TTG8Q005858J); VERIFIED STEP 18 C/W; FINAL AUDIT C/W