SDR 97ZZZX2003

Service difficulty report · Pump · Stbros SC73

Difficulty date
April 9, 1997
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N1846
Make and model
Stbros SC73
Aircraft serial
SH1846
Engine
Garrtt TPE3312201A
Part
Pump
Part number
8974001
Condition
Leakage
Location
Driveshaft
Part time
4,060 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

INVESIGATION FOR EXCESS OIL USAGE, FOUND THE OIL WAS ENTERING THE FUEL SYS VIA THE OIL WET SPLINE MOD TO THE DRIVESHAFT THAT DRIVES THE FUEL PUMP ON THE ENG GEARBOX. ALLIED SIGNAL SB TPE 331-72-0104 IS THE WET SPLINE MOD.