Service difficulty report · Seal · Boeing 7377H4

Difficulty date
January 14, 2026
Submitted
February 9, 2026
Operation
Air carrier
Aircraft
N945WN
Make and model
Boeing 7377H4
Aircraft serial
36660
Aircraft time
51,108 hours, 31,405 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 SLIDE SEAL IS CRACKED. REMOVED AND REPLACED THE RIGHT STABILIZER TO BODY UPPER FRONT SPAR SLIDING SEAL PLATE IAW AMM 53-31-31-000-802 AND AMM 53-31-31-400-802.

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