What was found
LEFT HORIZONTAL STAB INTERNAL RIB AT STA 111.10 HAS A CRACK AT THE BOTTOM OF THE NR 3 VERTICAL STIFFENER ON THE INBD FACING SIDE OF THE OF THE RIB. REPAIRED RIB NR 3 VERTICAL STIFFENER PER SRM 55-10-09 2R REPAIR 4
- Difficulty date
- March 27, 2026
- Submitted
- April 1, 2026
- Operation
- Air carrier
- Aircraft
- N57439
- Make and model
- Boeing 737924ER
- Aircraft serial
- 33534
- Aircraft time
- 52,618 hours, 18,767 cycles
- System (JASC)
- 5511 · Horizontal Stabilizer, Spar/Rib
- Part
- Rib
- Part number
- 182A53033
- Part serial
- A
- Condition
- Cracked
- Location
- Zone 300
- 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.