Service difficulty report · Slat · Boeing 7377H4

Difficulty date
March 19, 2023
Submitted
May 3, 2023
Operation
Air carrier
Aircraft
N436WN
Make and model
Boeing 7377H4
Aircraft serial
32456
Aircraft time
66,420 hours, 39,287 cycles
Part
Slat
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 SLAT 1 LOWER SKIN LOCATED SLAT STATION 451.97 AT LT WING 2023-208216<[01] TOOL USED : TOOL USED : EDDY CURRENT EQUIPMENT P/N NORTEC500D S/N N500X12101U102020 DUE DATE: 30-AUG-23.;[02] TOOL USED EDDY CURRENT EQUIPMENT P/N: NORTEC 600D; S/N: 220272512; DUE DATE: 17-DEC-23.;[03] TOOL USED EDDY CURRENT EQUIPMENT P/N NORTEC 600D; S/N 60009161631 DUE DATE 31/JAN/24;[04] REPAIRED SLAT 1 NOSE SKIN AT THE ACTUATOR LEADING EDGE AT LT WING IAW B737-700 SRM 57-42-01-2R-8 REPAIR 8 FIGURE 202 SHEET 1 ALTERNATIVE 1. THIS REPAIR IS CATEGORY A AND RE-INSPECTION IS NOT REQUIRED. SEE INDIVIDUAL SING-OFFS BELOW.;[05] CORRECTED STEP 4 REPAIRED SLAT 1 LOWER SKIN AT THE ACTUATOR LEADING EDGE AT LT WING IAW B737-700 SRM 57-42-01-2R-8 REPAIR 8 FIGURE 202 SHEET 1 ALTERNATIVE 1. THIS REPAIR IS CATEGORY A AND RE-INSPECTION IS NOT REQUIRED. SEE INDIVIDUAL SING-OFFS BELOW.;[06] CORRECTED STEP 5 REPAIRED SLAT 1 LOWER SKIN AT THE ACTUATOR LEADING EDGE AT LT WING IAW B737-700 SRM 57-42-01-2R-8 REPAIR 8 FIGURE 202 SHEET 1 ALTERNATIVE 1. THIS REPAIR IS CATEGORY A AND RE-INSPECTION IS NOT REQUIRED. SEE INDIVIDUAL SIGN-OFFS BELOW.;[07] CORRECTIVE ACTION STEP 6 CERTIFIED RII

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