Service difficulty report · Frame · Boeing 737*

Difficulty date
March 17, 2022
Submitted
April 20, 2022
Operation
Air carrier
Aircraft
N472WN
Make and model
Boeing 737*
Aircraft serial
33831
Aircraft time
58,559 hours, 34,804 cycles
Part
Frame
Condition
Cracked
Location
Fuselage
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 IN RADIUS OF FRAME AT B.S. 312 JUST ABOVE FORWARD ENTRY DOOR CUT OUT. / [01] REMOVED DAMAGE BY TRIMMING FRAME RADIUS AND FLANGE L=0.6' X W=0.5' MAINTAINING 0.5' RADIUS IAW SRM 51-10-02.;[02] VERIFIED CORRECTIVE ACTION #1;[03] REQUEST HFEC INSPECTION ALONG THE TRIM EDGES FOR CRACK FREE CONDITION;[04] ACCOMPLISHED HFEC INSPECTION OF CUTOUT NO CRACK NOTED IAW 737 NDTM PART 6; 51-00-00 PROCEDURE 23 TOOL# ISO000681.;[05] REPAIR ACCOMPLISHED PER EA#22-153-00906;[06] VERIFIED ALL STEPS COMPLETED;[07] COMPLETE