Service difficulty report · Angle · Boeing 7377H4

Difficulty date
July 6, 2021
Submitted
August 19, 2021
Operation
Air carrier
Aircraft
N941WN
Make and model
Boeing 7377H4
Aircraft serial
36647
Aircraft time
39,425 hours, 23,903 cycles
Part
Angle
Condition
Corroded
Location
Bs 767
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

AFT CARGO COMPARTMENT; RH Z-ANGLE HAS CORROSION AT STA 767; RBL 21; WL 156; DOT#A-193-42 ; / [01] BEGAN REMOVING CORROSION FROM RH ZEE ANGLE BS 767 ORIGINAL T= .040' LOSS OF .015' REMAINING T= .025' FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2 TOOLING # 36306 CAL DUE 14JUN22; [02] VERIFIED STEP 1 C/W; [03] VERIFIED REPLACEMENT AND REPAIR SECTION TO BE FABRICATED FROM BAC1496-377 7075-T62 ATAG A23336 IAW SRM 53-00-53-2R-5; [04] VERIFIED STEP 3 C/W; [05] FABRICATED RH ZEE ANGLE IAW SRM 53-00-52-2R-5; [06] VERIFIED STEP 5 C/W<BR><BR>OK TO TREAT AND PRIME; [07] TREATED AND PRIMED ZEE ANGLE IAW AMM 52-21-41 AND 51-21-99; [08] VERIFIED STEP 7 C/W; [09] PRE ASSEMBLED RH ZEE ANGLE IAW SRM 53-00-52-2R-5; [10] BEGAN REMOVING CORROSION FROM RH ZEE ANGLE BS 767 ORIGINAL T= .040' LOSS OF .015' REMAINING T= .025' FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2. FABRICATED REPLACEMENT ZEE ANGLE BS 727-767 IAW SRM 53-00-52-2R-5.; [11] CORRECTING STEP 10 REF. FABRICATED REPLACEMENT ZEE ANGLE BS 727-767 IAW SRM 53-00-53-2R-5.; [12] VERIFIED STEPS 9; 10; AND 11 C/W; [13] AUDIT C/W

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