What was found
AIRCRAFT IN BASE MAINTENANCE: CRACK IN LEFT HAND HORIZONTAL RIB LOCATED AT STABILIZER STA 129.50; CRACK IN SECOND STIFFENER FROM THE FRONT SPAR. REPLACED RIB PER AARD 51-00-05-1 AND SRM 55-10-09-2R-5.
- Difficulty date
- May 4, 2023
- Submitted
- May 5, 2023
- Operation
- Air carrier
- Aircraft
- N987AN
- Make and model
- Boeing 737823
- Aircraft serial
- 31069
- Aircraft time
- 41,684 hours, 17,336 cycles
- System (JASC)
- 5511 · Horizontal Stabilizer, Spar/Rib
- Part
- Rib
- Part number
- 182A53053
- Condition
- Cracked
- Location
- Zone 300 - Stabs
- 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.