Service difficulty report · Frame · Boeing 7377BD

Difficulty date
March 7, 2023
Submitted
March 30, 2023
Operation
Air carrier
Aircraft
N556WN
Make and model
Boeing 7377BD
Aircraft serial
33936
Aircraft time
37,398 hours, 21,958 cycles
Part
Frame
Condition
Cracked
Location
Zn 100 Fus Lower
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

FRAME CRACKED BS400 R/H AT BIN RAIL ATTACH POINT BETWEEN STR8R-9R. ACCOMPLISHED HFEC SURFACE SCAN IAW NDTM PART 6 CHAPTER 51-00-00 PROCEDURE 23. VERIFIED MULTIPLE CRACKS AROUND HOLE MEASURED 1.6' L AND 0.6'L. REMOVED DAMAGE ON FRAME BS 400 R/H AT BIN RAIL ATTACH POINT BTW S-8R - S-9R; CUT OUT AREA: L= 1' X W=.850' IAW SRM 51-10-02-0G-0. REQ NDI CUT OUT FOR FREE CRACK CONDITION. HFEC INSPECTED CUTOUT AREA IAW NDTM PART 6 51-00-00 PROCEDURE 23.NO CRACKS NOTED. REPAIRED PER EA 23-153-00830.

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