Service difficulty report · Skin · Boeing 7377H4

Difficulty date
August 17, 2022
Submitted
September 13, 2022
Operation
Air carrier
Aircraft
N256WN
Make and model
Boeing 7377H4
Aircraft serial
32514
Aircraft time
53,474 hours, 32,127 cycles
Part
Skin
Condition
Cracked
Location
L/H 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 LOWER SKIN SLAT 1 AT WING LEADING EDGE NOSE SKIN AT THE ACTUATOR RIB LOCATED SLAT STATION 451.97 AT LT WING 2022-456331 / [01] TOOL USED EDDY CURRENT P/N: NORTEC 500D; S/N: N500X12101V022237; DUE DATE: 06-OCT-22.;[02] MICROMETER P/N: 293-340-30; S/N: 63324511; DUE DATE: 24-SEP-22; SMALL HOLES GAUGES P/N: 154-901; S/N: AE-412971; DUE DATE: 28-JUL-23.;[05] TOOL USED UT EQUIPMENT P/N: 45MG; S/N: 130066701; CAL DUE DATE: 08-APR-23;[06] TOOL USED CALIPER P/N: 500-752-20; S/N: B16101278; DUE DATE: 26/OCT/22;[07] REPAIRED PARTS LOC LOWER SKIN SLAT 1 STATION 451.97 AT LT WING IAW B737-700 SRM 57-42-01-2R-8; REPAIR 8; ALTERNATIVE 1; FIGURE 202; SHEET 1 AND SRM 51-40-02. MATERIAL USED DOUBLER [1] 7075-T6 0.071? P.O: 2021-189588 AND MATERIAL USED FILLER [2] 7075-T6 0.063? P.O: 2021-194451; SEE INDIVIDUAL SIGN OFFS BELOW.;[08] CORRECTED STEP 7: REPAIRED LOWER SKIN SLAT 1 STATION 451.97 AT LT WING IAW B737-700 SRM 57-42-01-2R-8; REPAIR 8; ALTERNATIVE 1; FIGURE 202; SHEET 1 AND SRM 51-40-02. MATERIAL USED DOUBLER [1] 7075-T6 0.071? P.O: 2021-189588 AND MATERIAL USED FILLER [2] 7075-T6 0.063? P.O: 2021-194451; SEE INDIVIDUAL SIGN OFFS BELOW.;[09] REPAIRED LOWER SKIN SLAT 1 STATION 451.97 AT LT WING IAW B737-700 SRM 57-42-01-2R-8; REPAIR 8; ALTERNATIVE 1; FIGURE 202; SHEET 1 AND SRM 51-40-02. MATERIAL USED DOUBLER [1] 7075-T6 0.071? P.O: 2021-189588 AND MATERIAL USED FILLER [2] 7075-T6 0.063? P.O: 2021-194451; SEE INDIVIDUAL SIGN OFFS BELOW.<BR><BR>RII ACCOMPLISHED

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