Service difficulty report · Skin · Boeing 73776Q

Difficulty date
November 21, 2022
Submitted
December 13, 2022
Operation
Air carrier
Aircraft
N7882B
Make and model
Boeing 73776Q
Aircraft serial
30271
Aircraft time
49,019 hours, 31,646 cycles
Part
Skin
Condition
Cracked
Location
Lt Nr 1 Slat
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 ON THE NR 1 SLAT LOWER SURFACE. REMOVED FASTENERS IAW SRM 51-40-02. HFEC INSPECTED SUSPECTED CRACKED HOLES IAW NDTM PART 6 51-00-00 PROCEDURE 16. CRACKS NOTED. HFEC INSPECTED SUSPECTED CRACKED COUNTERSINKS IAW NDTM PART 6 53-30-00, PROCEDURE 3. CRACKS NOTED, CRACKS FOUND TO BE OUT OF LIMIT IAW SRM 57-42-01-1A-1, DET 4A, 1A, FIG 105-A. REMOVED DAMAGE IAW SRM 57-42-01-2R-8, REPAIRE-8, FIG 202, SHEET 1. REAMED FASTENER HOLES TO 0.215 AT DISCREPANCY IAW HFEC ON STEP 10, AND SRM 57-42-01-2R-8.

More about the Boeing 737-76Q