Service difficulty report · Fitting · Boeing 747212B

Difficulty date
May 25, 2004
Submitted
June 7, 2004
Operation
Air carrier
Aircraft
N808MC
Make and model
Boeing 747212B
Aircraft serial
21048
Engine
Ge CF650E2
Part
Fitting
Part number
65B941383
Condition
Cracked
Location
Nr 1 Pylon
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

D-CHECK. REWORK OF STRUT NR 1 DIAGONAL BRACE LOWER SPAR FITTING, SP 747-54A2196 REV 1. DURING ACCOMPLISHMENT OF THE TERMINATING ACTION, DAMAGE WAS FOUND AT THE UPPER MOST FASTENER HOLE ON THE RIGHT SIDE OF THE FITTING AFT VERTICAL FLANGE. THE DEFECT WAS COMPLETELY REMOVED BY OVERSIZING THE HOLE TO 0.434 INCHES DIAMETER PRIOR TO FURTHER OVERSIZING TO 0.4521 INCHES DIAMETER. A SAME TYPE FASTENER AS USED WAS INSTALLED AT THE DISCREPANT LOCATION. ALL OTHER FITTING REWORK AND REFINISH WAS ACCOMPLISHED IAW WITH THE TERMINATING ACTION.

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