Service difficulty report · Seal · Boeing 7377H4

Difficulty date
February 10, 2026
Submitted
February 13, 2026
Operation
Air carrier
Aircraft
N923WN
Make and model
Boeing 7377H4
Aircraft serial
36627
Aircraft time
57,758 hours, 35,193 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, FWD UPPER SLIDING SEAL CRACKED. R & R THE LT HORIZONTAL STAB FWD UPPER SLIDING SEAL IAW AMM 53-31-31.

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