Service difficulty report · Plate · Boeing 7377H4

Difficulty date
December 9, 2022
Submitted
December 29, 2022
Operation
Air carrier
Aircraft
N401WN
Make and model
Boeing 7377H4
Aircraft serial
29813
Aircraft time
73,533 hours, 43,472 cycles
Part
Plate
Condition
Cracked
Location
Zn 500 Left Wing
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 ON CORRUGATE PLATE LOCATED AT LEVEL ORSS 261 TRAILING EDGE AT LT WING 2022-688491<[01] REJECT. ELONGATED HOLE LOWER SURFACE SKIN COUNTERSINK AT LEVEL ORSS 261 TRAILING EDGE AT LT WING (4 EA). FAULT RAISED TTG8Q00GNDKE.;[02] FAULT TTG8Q00GNDKE HAS ALREADY BEEN CERTIFIED.;[03] REPLACED CORRUGATED PLATE AND FASTENERS LOCATED AT LEVEL ORSS 261 TRAILING EDGE AT LT WING IAW B737-700 SRM 51-40-02 AND SRM 51-10-02 AND DWG 115A2001 SHEET : 18 REV : ? SEE INDIVIDUAL SING-OFF BELOW.;[04] REPLACED CORRUGATED PLATE AND FASTENERS LOCATED AT LEVEL ORSS 261 TRAILING EDGE AT LT WING IAW B737-700 SRM 51-40-02 AND SRM 51-10-02 AND DWG 115A2001 SHEET : 18 REV : ? SEE INDIVIDUAL SING-OFF BELOW.

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