Service difficulty report · Seal · Boeing 7378

Difficulty date
July 29, 2026
Submitted
August 4, 2026
Operation
Air carrier
Aircraft
N8897K
Make and model
Boeing 7378
Aircraft serial
68049
Aircraft time
9,303 hours, 4,881 cycles
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.

What was found

LEFT HORIZONTAL STAB FORWARD UPPER SLIDING SEAL HAS A 2.5 VERTICAL CRACK PARALLEL TO THE SEALS LEADING EDGE. REMOVED AND REPLACED LT HORIZONTAL STAB FWD UPPER SLIDING SEAL PER AMM 53-31-31

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