Service difficulty report · Seal · Boeing 7378

Difficulty date
July 9, 2026
Submitted
July 14, 2026
Operation
Air carrier
Aircraft
N1809U
Make and model
Boeing 7378
Aircraft serial
60188
Aircraft time
12,743 hours, 6,423 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

RIGHT HORIZONTAL STABILIZER FWD UPPER SLIDING SEAL CRACKED ALONG SEAL TRACK EDGE. REMOVED AND REPLACED RT HORIZONTAL STAB UPPER SLIDING SEAL IAW AMM 53-31-31.

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