Service difficulty report · Seal · Boeing 7377H4

Difficulty date
January 12, 2023
Submitted
January 13, 2023
Operation
Air carrier
Aircraft
N477WN
Make and model
Boeing 7377H4
Aircraft serial
33988
Aircraft time
62,336 hours, 37,081 cycles
Part
Seal
Condition
Cracked
Location
Horizontal Stab
Stage of operation
IN
How discovered
9
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

RH HORIZONTAL UPPER FRONT SPAR SLIDING SEAL IS CRACKED. R & R THE RT HORIZONTAL UPPER FRONT SPAR SLIDING SEAL IAW AMM 53-31-31.

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