Service difficulty report · Support Fitting · Boeing 74747UF

Difficulty date
January 25, 2011
Submitted
January 26, 2011
Operation
Air carrier
Aircraft
N412MC
Make and model
Boeing 74747UF
Aircraft serial
30559
Aircraft time
48,153 hours, 7,180 cycles
Part
Support Fitting
Part number
65B027162
Condition
Damaged
Location
Bs 2658
Stage of operation
IN
How discovered
V
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

DURING D-CHECK INSP OF DATUM ACFT, DAMAGE (WORN HOLE) WAS FOUND ON SUPPORT FITTING OF APU LT SUPPORT LINK FWD SIDE AT STA 2658 (REFER TO FIG 1 FOR DAMAGE LOCATION). (THE REPAIR (FIG 2) WAS PERFORMED IAW EGA-TLS-11-0009 AND WAS APPROVED IAW SR 1-1777633064 AND RDR DATED JAN. 21, 2011 (FIG 3). NOTE: THE REPAIR BUSHING WAS FABRICATED DIRECTLY FROM 1.0 IN DIA 17-4PH H925 (180-200 KSI, HRC 40-43) CONDITION IAW AMS 5643.)

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