Service difficulty report · Angle · Boeing 7378H4

Difficulty date
April 24, 2023
Submitted
May 25, 2023
Operation
Air carrier
Aircraft
N8531Q
Make and model
Boeing 7378H4
Aircraft serial
63575
Aircraft time
19,946 hours, 9,687 cycles
Part
Angle
Condition
Corroded
Location
Zn 100 Fus Lower
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 CARGO COMPARTMENT RH TRANSITION ANGLE STA.500A TO 500B CORROSION AT NUMEROUS FASTENER HOLES.<[01] REMOVED CORROSION PER SRM 51-10-02. FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2.STEP 2.;[02] VERIFIED CORROSION OUT OF LIMITS. SIGN OFF FOR CORRECTIVE ACTION 1.;[03] REMOVED FASTENERS;CUT OUT DAMAGE SECTION ON RH TRANSITION ANGLE FROM STA 500A TO STA 500A+10 FOR REPAIR PER SRM 53-00-53-2R-5.;[04] LOCATED AND DRILLED RH TRANSITION ANGLE REPLACEMENT SECTION FROM STA 500A TO STA 500A+10 ; AND SIDE PLATE REPAIR SPLICE PER SRM 53-00-53-2R-5.TREATED AND PRIMED REPAIR PARTS PER SRM 51-20-01.;[05] INSTALLED THE RH TRANSITION ANGLE REPLACEMENT SECTION FROM STA 500A TO STA 55A+10 AND THE REPAIR SPLICE PER SRM 53-00-53-2R-5.;[06] INSTALLED 3 BONDING NUT PLATED PER SRM 51-40-10.ON MAY3;2023 @ 19:45;[10] REMOVED DAMAGED SECTION OF RH TRANSITION ANGLE ;AND INSTALLED THE RH TRANSITION ANGLE SECTION REPLACEMENT FROM STA 500A TO STA 55A+10 AND THE REPAIR SPLICE PER SRM 53-00-53-2R-5.INSTALLED 3 EACH BONDED NUT PLATES ;AND PERFORMED PUSH TEST GOOD PER SRM 51-40-10.;[11] INSPECTED CA #10

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