Service difficulty report · Seal · Bell 407

Difficulty date
June 23, 1998
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N407PH
Make and model
Bell 407
Aircraft serial
53003
Part
Seal
Part number
71X7023
Condition
Leaking
Location
Main Rotor
Stage of operation
IN
Nature of condition
K
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LEAKING OIL FROM GEARBOX TO INSIDE BOOT. ALSO FOUND SEALS P/N B56-40 LEAKING; BEARINGS P/N MS27641-4 AND -5, 2 EACH ROUGH; BOOT P/N 406-312-106-101 DETERIORATED; AND SPINDLES ON TRUNNION ASSY P/N 206-011-726-005 WORN BEYOND LIMITS. REPLACED PARTS.

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