Service difficulty report · Angle · Boeing 7378H4

Difficulty date
August 19, 2020
Submitted
September 2, 2020
Operation
Air carrier
Aircraft
N8648A
Make and model
Boeing 7378H4
Aircraft serial
42531
Aircraft time
21,266 hours, 9,375 cycles
Part
Angle
Condition
Corroded
Location
Bs 500a-500i
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

FWD PIT RIGHT Z ANGLE UPPER SURFACE CORRODED IN SEVERAL AREAS FROM STA 500A TO 500I RBL 24 AND WL 155. REMOVED CORROSION & EVALUATED ON FWD PIT RT Z ANGLE STA 500A - 500I RBL 24 WL 155 AS OUT OF LIMITS IAW SRM 51-10-02-0G-0 & SRM 53-00-00-53-1A-2. REMOVED OUT OF LIMITS Z ANGLE SECTION FROM STA 500B+12' - 500I. VERIFIED NEW Z-ANGLE AS PN BAC1446-444 7075 T62 ATAG #A57840 IAW SRM 53-00-53-2R-5. LOCATED & DRILLED REPAIR PARTS IAW SRM 53-00-53-2R-5 STEPS 4 (D TO H). TREATED AND PRIMED IAW SRM 53-00-53-2R-5. INSTALLED Z-ANGLE; SPLICE; AND REPAIR PARTS. SPLICE LOCATED AT STA 500B+12' IAW SRM 53-00-53-2R-5. APPLIED CIC IAW SRM 53-00-53-2R-5 P/N 143A7501-188

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