Service difficulty report · Seal · Boeing 7377H4

Difficulty date
July 2, 2025
Submitted
July 24, 2025
Operation
Air carrier
Aircraft
N963WN
Make and model
Boeing 7377H4
Aircraft serial
36676
Aircraft time
44,502 hours, 27,369 cycles
Part
Seal
Part number
186A300340
Condition
Cracked
Location
Zn 300 Stabilize
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

HORIZONTAL STAB PANEL 333AT AFT BODY SEAL CRACKED AND WORN. REPLACED AFT BODY SEAL ON HORIZONTAL STAB PANEL 333AT IAW SRM 51-40-02-0G-0; STEP 9. IAW AIPC 55-10-52.

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