Service difficulty report · Skin · Boeing 73776N

Difficulty date
November 12, 2021
Submitted
December 13, 2021
Operation
Air carrier
Aircraft
N7722B
Make and model
Boeing 73776N
Aircraft serial
32668
Aircraft time
49,599 hours, 25,042 cycles
Part
Skin
Condition
Cracked
Location
R/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 AROUND THE FASTENER AT NO.5 SLAT LOWER SURFACE OF THE L/E SLAT NOSE SKIN AT ACTUATOR RIBS. EDDY CURRENT INSPECTED AREA IAW NDT MANUAL PART 6; 51-00-00 PROCEDURE 23. EXTENT OF CRACK NOTED APPROX .100 INCHES. REMOVED DAMAGED PART IAW SRM 57-42-01-2R-8, STEPS 4.B.C. EDDY CURRENT INSPECTED DAMAGE TRIM OUT & SURROUNDING AREA IAW NDT MANUAL PART 6, 51-00-00 PROCEDURE 23. NO CRACKS FOUND. EDDY CURRENT INSPECTED OPEN HOLES COMMON TO REPAIR AREA IAW NDT MANUAL PART 6, 51-00-00 PROCEDURE 16. CRACK INDICATION NOTED AT FORWARD MOST OUTBOARD FASTENER HOLE COMMON TO ACTUATOR FITTING. NR 5 SLAT WAS REPAIRED ON ATS COMPONANTS WO 544729,REMOVAL AND INSTALLATION OF NR 5 SLAT ACCOMPLISHED ON FAULT TTG8Q009EAXR.

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