Service difficulty report · Disc Pack · Bell 407

Difficulty date
October 3, 2001
Submitted
November 27, 2001
Operation
Air carrier
Aircraft
N427AL
Make and model
Bell 407
Aircraft serial
53107
Engine
Allsn 250C47B
Part
Disc Pack
Part number
407340340103
Part serial
RNFS0095
Condition
Cracked
Location
Tail Rotor
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

DAILY INSPECTION OF TAILROTOR HANGER BEARINGS. CRACKED DISC NR5 AND NR6 TAILROTOR HANGER BEARINGS. ALLOW THE TAILROTOR DRIVESHAFT TO FLOAT SO DISC PACKS DO NOT FLEX AS MUCH OR AS OFTEN.

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