Service difficulty report · Angle · Boeing 7378H4

Difficulty date
March 16, 2022
Submitted
April 12, 2022
Operation
Air carrier
Aircraft
N8682B
Make and model
Boeing 7378H4
Aircraft serial
36651
Aircraft time
20,559 hours, 9,520 cycles
Part
Angle
Part number
146A750252
Condition
Corroded
Location
Aft Cargo 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

DOT#29-186 AFT CARGO COMPARTMENT Z ANGLE CORRODED STA 727H+6 TO 767 RBL 22 WL 156 / [01] REMOVED CORROSION ON Z ANGLE IAW SRM 51-10-02-0G-0 ITEM 15;[02] EVALUATED ALLOWABLE LIMITS : .040 ORIGINAL 'T' .028 REMAINING .012 LOSS; FOUND OUT OF LIMITS IAW SRM 53-00-53-1A-2 TOOL USED UT AAR#36647 DUE 05/19/22;[03] VERIFIED STEPS 1 AND 2 ARE COMPLETE;[04] VERIFIED STEPS 1 AND 2;[05] CUT OUT DAMAGE SECTION BETWEEN STA 727G-727-H AND REMOVED FROM STA 727G -767 IAW SRM 53-00-53-2R-5 REPAIR 5;[06] VERIFIED MATERIAL ID FOR Z ANGLE REPAIR PARTS BAC1496-377-7075 T6 TAG#A101697 IAW SRM 53-00-53-2R-5 REPAIR 5;[07] VERIFIED STEPS 5 A6 6 ARE COMPLETE;[08] VERIFIED STEPS 5-6;[09] FABRICATED Z ANGLE REPAIR SECTION AND SPLICE IAW SRM 53-00-53-2R-5 REPAIR 5;[10] VERIFIED STEP 9 IS COMPLETE;[11] VERIFIED ITEMS 9 AND 10<BR>OK TO TREAT AND PRIME;[12] APPLIED ALODINE AND PRIMER REPAIR PARTS IAW SRM 51-20-01-0G-0 AND AMM 51-21-72-370-804;[13] VERIFIED STEP 12 IS COMPLETE;[14] VERIFIED ITEMS 12 AND 13;[15] OK GIVEN TO INSTALL Z ANGLE;[16] INSTALLED Z ANGLE REPAIR PARTS IAW SRM 53-00-53-2R-5 REPAIR 5;[17] VERIFIED STEP 16 IS COMPLETE;[18] VERIFIED ITEMS 16 AND 17<BR>OK TO CIC;[19] APPLIED CIC REPAIR AREA IAW AMM 51-21-91 620-802;[20] ITEM 22 OF MEASUREMENTS SHOULD BE MAJOR;[21] CORRECTED THA REPAIR IS MAJOR NO MINOR;[22] VERIFIED MEASUREMENT;[23] VERIFIED STEP 21;22;[24] C/W

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