Rotax MML-912 Maintenance Manual page 80

If the engine has been operated longer than 5 hours with engine oil not
longer than 5 hr.
corresponding with specification in the Operators Manual the following
work is required.
Step
1
2
3
4
5
6
7
8
9
10
11
Effectivity: 912 Series
Edition 2 / Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
Oil specification not respected
Remove propeller gearbox.
The gearbox must be inspected, repaired or overhauled in accordance
with the BRP-Powertrain instructions for continued airworthiness.
Carry out detailed inspection of the affected engine components.
Oil change.
Remove the lowest positioned banjo screw (1) (banjo bolt, plug screw or
screw socket) and drain the remaining oil from the crankcase. Screw in
banjo bolt or plug screw.
Tightening torque see Installation Manual 912 Series.
Replace oil filter.
Drain oil completely from oil cooler.
Drain oil from oil tank.
Refill oil tank with oil as specified, refer to Operators Manual.
Purge air from oil system. See chap. 12-20-00, section: 11.7).
Run engine for approx. 1 hour and replace oil and oil filter once more, as
stated above.
Procedure
05-50-00
page 18
October 01/2009