SDR 97ZZZX1280

Service difficulty report · Disc Pack · Bell 407

Difficulty date
February 24, 1997
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N407AL
Make and model
Bell 407
Aircraft serial
53044
Part
Disc Pack
Part number
406040340101
Condition
Cracked
Location
T/R Shaft
Part time
394 hours
Stage of operation
IN
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 ROUTINE INSPECTION, FOUND ONE DISC OF DISC PAC CRACKED IN THREE PLACES. TWO CRACKS WERE RUNNING PARALLEL WITH THE GRAIN METAL EXTENDING APPROXIMATELY 75 PERCENT OF THE WIDTH OF THE DISC. THE THIRD CRACK RUNNING PERPENDICULAR TO THE GRAIN APPROXIMATELY 75 PERCENT OF THE WIDTH OF THE DISC.

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