Service difficulty report · Angle · Boeing 7378H4

Difficulty date
February 16, 2022
Submitted
March 16, 2022
Operation
Air carrier
Aircraft
N8679A
Make and model
Boeing 7378H4
Aircraft serial
36932
Aircraft time
20,424 hours, 9,421 cycles
Part
Angle
Condition
Cracked
Location
Ac Bay
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

RIGHT HAND PACK BAY; HORIZONTAL ANGLE COMMON TO LOWER SIDE OF CENTER FUEL TANK AT STATION 663 RBL 10 IS CRACKED 3RD FASTENER OUTBOARD OF KEEL BEAM VERTICAL ANGLE. MARKED. / [01] REMOVED DAMAGED SECTION OF ANGLE RBL 6-17 IAW SRM 57-10-10-2R-5 VERIFIED -1 REPLACEMENT ANGLE FABRICATED ON BACK SHOP W/O 43216-5100-0004 AND -2 SPLICE ANGLE FABRICATED ON BACK SHOP W/O 43216-5100-0005 IAW SRM 57-10-10-2R-5;[04] VERIFIED ITEMS 1; 2; 3 AND MEASUREMENT TABLE;[05] VERIFIED STEPS 1 THRU 4;[06] HFEC IAW B737 NDT PART 6; 51-00-00 PROC 16. NO DEFECTS NOTED. TOOL#31823; DUE 23DEC22;[07] COMPLETED FABRICATION OF REPAIR PARTS IAW SRM 57-10-10-2R-5 TREATED AND PRIMED REPAIR PARTS AND BARE SURFACES IN REPAIR AREA IAW SRM 57-10-10-2R-5;[12] VERIFIED ITEM 11;[13] VERIFIED STEPS 11 AND 12;[14] OK TO INSTALL REPAIR PARTS;[15] COMPLETED INSTALLATION OF REPAIR AND PERFORMED BOND CHECK; BOND CHECK GOOD IAW SRM 57-10-10-2R-5<BR>TOOL# 20429 CAL. DUE: 11/01/2022;[16] VERIFIED ITEM 15;[17] VERIFIED STEPS 15 AND 16;[18] APPLIED CAP SEAL TO ALL TANK FASTENERS INTERNAL AND EXTERNAL SURFACES AND APPLIED FILLET SEAL TO REPAIR PARTS IAW SRM 57-10-10-2R-5;[19] VERIFIED ITEM 18;[20] VERIFIED ITEMS 18 AND 19<BR>OK TO CIC;[21] APPLIED CIC TO REPAIR PARTS AND DISTURBED SURFACES IN REPAIR AREA IAW SRM 57-10-10-2R-5;[22] CUT OUT DAMAGED SECTION OF RH PACK BAY HORIZONTAL ANGLE COMMON TO LOWER SIDE OF CENTER FUEL TANK STA 663 RBL 6-17 AND SPLICED IN ANGLE REPAIR IAW SRM 57-10-10-2R-5;

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