What was found
AIRCRAFT IN BASE MAINTENANCE: CRACK IN VERTICAL STIFFENER OF LH HORIZONTAL STABILIZER RIB AT STA 129.5, 18 IN AFT OF FRONT SPAR, MEASURING L=0.5 IN, W=0.003 IN, D=0.05 IN. REPLACED RIB WITH NEW IAW AARD 51-00-05.
- Difficulty date
- August 9, 2021
- Submitted
- August 20, 2021
- Operation
- Air carrier
- Aircraft
- N802NN
- Make and model
- Boeing 737823
- Aircraft serial
- 31073
- Aircraft time
- 35,325 hours, 14,474 cycles
- System (JASC)
- 5510 · Horizontal Stabilizer Structure
- 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.