What was found
AIRCRAFT IN BASE MAINTENANCE: FOUND 0.750 INCH CRACK ON RIB ON LEFT HORIZONTABL STABILIZER STA 92.7 3RD STIFFENER BACK FROM THE FRONT SPAR. REMOVED AND REPLACED RIB PER SRM 55-10-09-2R-4.
- Difficulty date
- August 25, 2020
- Submitted
- September 1, 2020
- Operation
- Air carrier
- Aircraft
- N807NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31077
- Aircraft time
- 33,296 hours, 13,400 cycles
- System (JASC)
- 5511 · Horizontal Stabilizer, Spar/Rib
- Part
- Rib
- Condition
- Cracked
- Location
- Horizontal Stab
- 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.