What was found
DURING HEAVY CHECK, CRACK FOUND ON THE CENTER TANK STA 1000 FRONT SPAR SHEAR TIE RBL 75.92, REMOVED AND REPLACED SHEAR TIE CENTER TANK STA. 1000 FROM SPAR RBL 75.92, IAW SRM 51-40-02, AND SB 747-53A2904.
- Difficulty date
- May 19, 2026
- Submitted
- May 22, 2026
- Operation
- Air carrier
- Aircraft
- N258SN
- Make and model
- Boeing 74747UF
- Aircraft serial
- 29258
- Aircraft time
- 94,698 hours, 15,226 cycles
- System (JASC)
- 5322 · Fuselage Internal Mounting Structure
- Part
- Shear Tie
- Part number
- 69B14267U8
- Condition
- Cracked
- Location
- Zone 100
- 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.