Service difficulty report · Seal · Boeing 7378H4

Difficulty date
September 30, 2026
Submitted
November 3, 2026
Operation
Air carrier
Aircraft
N8555Z
Make and model
Boeing 7378H4
Aircraft serial
63600
Aircraft time
29,278 hours, 14,926 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 STAB FWD UPPER METAL SLIDING SEAL CRACKED. REMOVED RT STAB FWD UPPER METAL SLIDING SEAL IAW AMM 53-31-31. INSTALLED THE SEAL PLATE LINK ASSY & CORNER PLATES TO THE NEW SEAL IAW AMM 53-31-31-400-802.

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