Service difficulty report · Skin · Boeing 737*

Difficulty date
January 6, 2022
Submitted
February 15, 2022
Operation
Air carrier
Aircraft
N423WN
Make and model
Boeing 737*
Aircraft serial
29827
Aircraft time
66,169 hours, 39,132 cycles
Part
Skin
Condition
Cracked
Location
L/H Wing
Stage of operation
UK
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 4 LOWER SKIN AT LEVEL OF ACTUATOR FITTING SLAT STATION 85.19 AT LT WING ; 2022-12123 / [01] TOOL USED PN NORTEC 600D SN 200048001 DUE DATE 24-FEB-22; [02] PERFORMED PERMANENT REPAIR PARTS -1 DOUBLER -2 FILLER AND FASTENERS LOC. SLAT 4 LOWER SKIN AT LEVEL OF ACTUATOR FITTING SLAT STATION 85.19 AT LT WING IAW SRM B737-700 SRM 57-42-01-2R-8 REPAIR 8; FIGURE 202; SHEET 4 ALTERNATIVE 1; MATERIAL USED ALUMINUM SHEET 7075-T6 0.071? P/O: 2021124912; ALUMINUM SHEET 7075-T6 0.063? P/O 2020203089.<BR>SEE INDIVIDUAL SIGNOFFS BELOW.; [03] PERFORMED PERMANENT REPAIR PARTS -1 DOUBLER -2 FILLER AND FASTENERS LOC. SLAT 4 LOWER SKIN AT LEVEL OF ACTUATOR FITTING SLAT STATION 85.19 AT LT WING IAW SRM B737-700 SRM 57-42-01-2R-8 REPAIR 8; FIGURE 202; SHEET 4 ALTERNATIVE 1; MATERIAL USED ALUMINUM SHEET 7075-T6 0.071? P/O: 2021124912; ALUMINUM SHEET 7075-T6 0.063? P/O 2020203089. <BR>SEE INDIVIDUAL SIGNOFFS BELOW. COMPLETED RII