Service difficulty report · Angle · Boeing 7377H4

Difficulty date
April 11, 2023
Submitted
April 20, 2023
Operation
Air carrier
Aircraft
N240WN
Make and model
Boeing 7377H4
Aircraft serial
32503
Aircraft time
56,457 hours, 33,866 cycles
Part
Angle
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

DOT A24-15 LH LOWER STATION 663 ANGLE; COMMON TO LOWER CENTER FUEL TANK; IS CRACKED NEAR LBL 48. MARKED<[01] DURING LOCATE AND DRILL OF -1 AND -2 ANGLES. MISS DRILLED WRONG SIDE OF TEMPLATE NO DAMAGE TO AIRCRAFT;[02] VERIFIED STEP 1;[03] HFEC IAW B737 NDT PART 6; 51-00-00 PROC 16. NO DEFECTS NOTED. TOOL#31823; DUE 03JAN24.;[04] ACCOMPLISHED 40 THOUSANDS INSURANCE CUT . TREATED AND PRIMED CUT AREA ALL IAW SRM 57-10-10-2R-5;[05] VERIFIED ITEM 4;[06] APPLIED FILLET SEAL AND CAP SEAL FASTENERS I/A/W AMM 51-31-00-390-801 AND 51-31-00-390-805;[07] VERIFIED ITEM 6;[08] VERIFIED ALL STEPS ARE COMPLETE;[09] VERIFIED ITEM 8<BR>AUDIT C/W

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