Service difficulty report · Angle · Boeing 7377H4

Difficulty date
April 21, 2023
Submitted
May 5, 2023
Operation
Air carrier
Aircraft
N245WN
Make and model
Boeing 7377H4
Aircraft serial
32506
Aircraft time
56,504 hours, 33,883 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

CENTER TANK RIGHT HAND LOWER ATTACH ANGLE IS CRACKED AT STA 663; RBL 48; W/L 168.54<[01] STARTED REMOVEING STA 663 CENTER TANK RIGHT HAND LOWER ATTACH ANGLE IAW SRM 51-40-02-0G-0 SRM 57-10-10-2R-5 FIG 202;[02] VERIFIED ITEM 1 OF STEPS 1 AND 2;[03] COMPLETED REMOVEING STA 663 CENTER TANK RIGHT HAND LOWER ATTACH ANGLE IAW SRM 51-40-02-0G-0 SRM 57-10-10-2R-5 FIG 202;[04] HFEC IAW B737 NDT PART 6; 51-00-00 PROC 16. NO DEFECTS NOTED. TOOL#31823; DUE 03JAN24;[05] VERIFIED RECEIVED -1 REPLACEMENT ANGLES FROM BACK SHOP P/N 44731-1000-0009 P/N 44731-1000-0001<BR>VERIFIED RECEIVED -2 SPLICE ANGLE FROM BACK SHOP P/N 44731-1000-0010;[06] VERIFIED ACTION 5;[07] STARTED FABRICATING -1 AND -2 REPAIR PARTS IAW SRM 57-10-10-2R-5 FIG 202;[08] VERIFIED ACTION ITEM 7;[09] COMPLETED FRABRICATING OF -1 AND -2 REPAIR PARTS IAW SRM 51-40-02-0G-0 AND SRM 57-10-10-2R-5;[10] VERIFIED STEP9<BR><BR>OK TO TREAT AND PRIME;[11] TREATED REPAIR PARTS IAW AMM 51-21-41-370-803 PRIMED REPAIR PARTS IAW AMM 51-21-72-370-804;[12] VERIFIED STEP 11<BR>AUDIT CW;[13] OK TO INSTALL -1 AND -2 REPAIR PARTS;[14] INSTALLED ALL FASTENERS COMMON TO WEB AND -1 AND -2 REPAIR PARTS IAW SRM 57-10-10-2R-5 AND DWG 111A1000 REV:-;[15] VERIFIED STEP 14;[16] COMPLETED INSTALLATION OF FASTENERS COMMON TO FEUL TANK IAW SRM 57-10-10-2R-5 AND BOEING DWG 111A1000;[17] VERIFIED ACTION ITEM 16;[18] OK TO INSTALL GIVEN IN STEPS 3; 4; 7 AND 8;[19] VERIFIED JOB COMPLETE; AUDIT C/W

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