Service difficulty report · Skin · Boeing 7377H4

Difficulty date
June 17, 2026
Submitted
July 6, 2026
Operation
Air carrier
Aircraft
N966WN
Make and model
Boeing 7377H4
Aircraft serial
36966
Aircraft time
46,709 hours, 29,023 cycles
Part
Skin
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

FOUND TWO CRACK INDICATIONS ALONG THE LOWER L/H STAB SURFACE MEASURING ROUGHLY 1.5; AND 4. FOUND UNER WIP1 INSTRUCTIONS ON TTG8Q01CQFWN. REPLACED LT LOWER HORIZONTAL STAB SKIN IAW SRM 51-40-02-0G-0; SRM 51-40-04-0G-0; SRM 51-20-01-0-G-0; AMM 55-05-03-210-810; AMM 55-05-02-211-804; AMM 20-50-11-910-801; SOPM 20-50-19; DWG 182A4001 REV -; DWG 185A1700 REV.E; DWG 186A3000 REV. A; DWG 185A1600 REV. A, AND DWG 185A1320 REV. A; DWG 182A2401 REV-.

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