Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
November 7, 2022
Submitted
November 16, 2022
Operation
Air carrier
Aircraft
N221WN
Make and model
Boeing 7377H4
Aircraft serial
34259
Aircraft time
58,107 hours, 34,310 cycles
Part
Attach Angle
Condition
Cracked
Location
Zone 100
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 FOUND ON UPPER ATTACH ANGLE AT RBL 40 STA 663 (WL 167) / [01] VERIFIED ITEM 1 OF STEP 1;[02] RECEIVED -1 REPLACEMENT ANGLE 2024-T3 .063' AND -2 SPLICE ANGLE 2024-T3 .071' FROM BACKSHOP ON W/O#'S 44275-6000-0001 AND 44275-6000-0002 IAW SRM 57-10-10-2R-5 TABLE 201.;[03] VERIFIED STEP 2 C/W;[04] HFEC IAW B737 NDT PART 6; 51-00-00 PROC 16. NO DEFECTS NOTED. TOOL#31823; DUE 23DEC22;[05] ONE OPEN HOLE IS THE OVER SIZE FASTENER;[06] VERIFIED ITEM 2 OF STEP 2; ITEM 3 OF STEP 4 AND ITEM 6 OF STEP 11;[07] VERIFIED STEPS 12 AND 13 ARE COMPLETE;[08] AUDIT C/W

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