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 500-500d
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

A045-004; FORWARD PIT; RH Z-ANGLE HAS CORROSION. BS:500 TO 500D; RBL:25; WL:155. ; / [01] REMOVED DAMAGE FROM R/H Z-ANGLE IN FWD CARGO COMPARTMENT; STA 500-500D IAW SRM 51-10-02-0G-0 SECTION 15; VERIFIED WITH 10X MAGNIFICATION. VERIFIED MATERIAL LOSS ORIGINAL THICKNESS .040' LOSS .010' REMAINING .030' OUT OF LIMITS IAW SRM 53-00-53-1A-2 FIGURE 103 DETAIL D. <BR>TOOL# AAR-31793 CAL DUE 10/28/21.; [02] VERIFIED STEP 1 C/W; [03] FABRICATED NEW Z ANGLE FROM BAC1496-444 7075-T6A ATAG # A16701 IAW SRM 51-40-05 AND BOEING DRAWING 143A7501 FINISHES WILL BE APPLIED AND PART INSTALLED PER FAULT TTG8Q004E7SC; [04] VERIFIED STEP 3 AND OK TO TREAT AND PRIME; [05] TREATED AND PRIMED Z ANGLE IAW AMM 51-21-41-370-803 AND 51-21-72-370-801 VERIFIED JOB IS COMPLETE; [06] VERIFIED ITEM 5<BR>AUDIT C/W

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