Service difficulty report · Plate · Boeing 7378H4

Difficulty date
May 3, 2023
Submitted
May 25, 2023
Operation
Air carrier
Aircraft
N8670A
Make and model
Boeing 7378H4
Aircraft serial
36656
Aircraft time
27,016 hours, 12,741 cycles
Part
Plate
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 L/H SIDEPLATE HAS CORROSION AT FASTENER HOLES LBL 24; STA. 500D-500E<[01] REMOVED DAMAGE I.A.W SRM 51-10-02. MEASURED DAMAGE DEPTH TO BE .018?. DAMAGE FOUND TO BE OUT OF LIMITS I.A.W SRM 53-00-53-1A-2.[08] INSPECTED WORK PERFORMED ON C/A #7;[09] ENGINEERING TSR REQUIRED TO CONFIRM CORRODED ELEMENT PART NUMBER IS EFFECTIVE TO AIRCRAFT;[10] TREATED AND PRIMED REPLACEMENT PARTS FROM STA 440+10 TO STA 500I I.A.W SRM 1-21-00.;[11] REF CA#10. DUSTIN WYATT (TECHNICIAN); 11-MAY-2023 00:14 UTC<BR>TREATED AND PRIMED REPLACEMENT PARTS FROM STA 440+10 TO STA 500I I.A.W SRM 1-21-00.;[12] INSTALLED FLOORBOARD POCKET AT STA STA 485 AND STA 500B+16 INSTALLED SPLICE FASTENERS NOT COMMON TO BAFFLE AT STA500A+10 PER SRM 51-40-02 AND SRM 53-00-53-2R-5;[13] INSTALLED BONDING NUTPLATES PER SRM 51-40-10 .[NOTE ALT ADHESIVE USED EC-2216] EXPANDED CURE TIME;[14] VERIFIED CA #12 AND #13 INSTALLED FLOORBOARD POCKET AT STA STA 485 AND STA 500B+16 INSTALLED SPLICE FASTENERS NOT COMMON TO BAFFLE AT STA500A+10 PER SRM 51-40-02 AND SRM 53-00-53-2R-5<BR>INSTALLED BONDING NUTPLATES PER SRM 51-40-10 .[NOTE ALT ADHESIVE USED EC-2216] EXPANDED CURE TIME;[15] OK TO INSTALL TRANS ANGLE REPLACEMENT PARTS FROM STA 440+10 TO STA 500I LH SIDE LBL 25;[16] VERIFIED C/A 15. OK TO INSTALL;[17] INSTALLED THE REPLACEMENT PARTS FROM STA 440+10 TO STA 500I L/H PER SRM 53-00-53-2R-5 AND EA M-22-153-01550

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