Service difficulty report · Seal · Boeing 7378

Difficulty date
April 24, 2026
Submitted
April 28, 2026
Operation
Air carrier
Aircraft
N8925Q
Make and model
Boeing 7378
Aircraft serial
42597
Aircraft time
4,799 hours, 2,478 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 STABILIZER FORWARD UPPER SLIDING SEAL HAS A 3 VERTICAL CRACK ALONG THE FORWARD EDGE. REMOVED AND REPLACED LT HORIZONTAL STABILIZER FORWARD UPPER SLIDING SEAL IAW AMM 53-31-31.

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