Service difficulty report · Plate · Boeing 7378H4

Difficulty date
December 10, 2022
Submitted
January 9, 2023
Operation
Air carrier
Aircraft
N8526W
Make and model
Boeing 7378H4
Aircraft serial
36972
Aircraft time
19,461 hours, 9,374 cycles
Part
Plate
Condition
Corroded
Location
Zone 100
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; L/H SIDE PLATE HAS CORROSION AROUND FASTENER HOLES AT BS500+5 - BS500+17<[01] REMOVED DAMAGE PER SRM 51-10-02 AND FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2. REMOVED L H TRANSITION ANGLE FROM STA 480+8 TO STA 500I PER SRM 51-40-02.;[02] FABRICATED TRANSITION ANGLES 2EA FOR REPLACEMENT FROM STA 480+8 TO 500I INCORPORATING A SPLICE REPAIR AT STA 480+8 AND A SPLICE REPAIR AT 500E+ 10. PER SRM 53-00-53-2R-5. DRILLED PER SRM 51-40-05 AND COUNTERSINK PER SRM 51-40-08.;[03] TREATED NEW SECTIONS OF TRANSITION ANGLE AND REPAIR PARTS PER AMM 51-21-31 AND PRIMED PER AMM 51-21-72. OK TO ASSEMBLE PARTS AND INSTALL ON AIRCRAFT;[04] C/W INSP ITEM #3 OK TO ASSY AND INSTALL;[05] C/W INSP ITEM #2;[06] REMOVED AND REPLACED TRANSITION ANGLE FROM STA 500+5 -500I PER SRM 53-00-53-2R-5 AND EA M-22-153-01550.

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