What was found
LEFT HORIZONTAL STABILIZER FORWARD UPPER SLIDING SEAL HAS A 4.50 VERTICAL CRACK ON LEADING EDGE, PARALLEL TO FORWARD TRACK. REMOVED AND REPLACED LEFT SIDE FORWARD UPPER SLIDING SEAL ON HORIZONTAL STABILIZER IAW AMM 53-31-31.
- Difficulty date
- October 14, 2025
- Submitted
- October 20, 2025
- Operation
- Air carrier
- Aircraft
- N1804U
- Make and model
- Boeing 7378
- Aircraft serial
- 60650
- Aircraft time
- 8,415 hours, 4,199 cycles
- System (JASC)
- 5514 · Horizontal Stabilizer Miscellaneous Structure
- Part
- Seal
- 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.