Service difficulty report · Seal · Boeing 7378H4

Difficulty date
January 9, 2026
Submitted
February 10, 2026
Operation
Air carrier
Aircraft
N8528Q
Make and model
Boeing 7378H4
Aircraft serial
36927
Aircraft time
29,291 hours, 14,797 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 STAB UPPER FWD SLIDING SEAL IS CRACKED. REMOVED AND REPLACED RT STABILIZER TO BODY UPPER FRONT SPAR SLIDING SEAL IAW AMM 53-31-31. OPS CHKD GOOD.

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