Service difficulty report · Skin Panel · Boeing 7377H4

Difficulty date
April 20, 2022
Submitted
May 19, 2022
Operation
Air carrier
Aircraft
N474WN
Make and model
Boeing 7377H4
Aircraft serial
33861
Aircraft time
59,626 hours, 35,442 cycles
Part
Skin Panel
Condition
Cracked
Location
Lh Hor 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

CRACK INDICATION FOUND ON LT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.90 AND 16 INCH. FROM FRONT SPAR. CRACK LENGTH = 1.250 INCH. APPROX. 2022-211254 / REPAIRED LOWER EXTERNAL SKIN PANEL LOCATED ON LT HORIZONTAL STABILIZER LOWER SKIN PANEL. LOCATED AT STAB STA 193.90 AND 16 INCH. FROM FRONT SPAR IAW B737-700 SRM 55-10-01-2R-11 REPAIR 11. MATERIAL USED: ALUMINUM SHEET P/N: 2024T3-0.063 P.O: 2021 244321 SHEET P/N: 2024T3 0.080 P.O: 2022 126808. FINISH APPLY PROCESS ON REPAIR AREA WILL BE COMPLETED IN NO-ROUTINE CARD FAULT (TTG8Q00CG3EQ).

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