Exceeding Of Max. Admissible Engine Rpm - Rotax 912 Series Maintenance Manual

3.4)

Exceeding of max. admissible engine RPM

General note
5800 rpm up to If the limit was exceeded for max. 1 minute and max. 6200 rpm
max. 6200 rpm
1
5800 rpm up to If the limit was exceeded for more than 1 minute and max. 6200 rpm
max. 6200 rpm
1
6200 rpm up to If the limit was exceeded for max. 1 minute and max. 6500 rpm
max. 6500 rpm
1
6200 rpm up to If the limit was exceeded for more than 1 minute and max. 6500 rpm
max. 6500 rpm
1
2
3
4
5
more than If the speed of 6500 rpm was exceeded
6500 rpm
1
2
3
4
5
6
Effectivity: 912 Series
Edition 3 / Rev. 1
BRP-Powertrain
MAINTENANCE MANUAL
Any exceeding of the max. admissible engine RPM
NOTICE WARNUNG
must be entered by the pilot into the engine log book
stating duration extent of overspeeding and pertinent
detail.
Step
No action needed.
Step
Check that the push-rods are straight.
Step
Check that the push-rods are straight.
Step
The whole engine must be inspected, repaired or overhauled in accor-
dance with the BRP-Powertrain instructions for continued airworthiness.
Check that the push-rods are straight.
Inspect the crankshaft for out-of-roundness. See chapter 72-00-00 section
3.9) of the Heavy Maintenance Manual.
Inspect all systems for correct functioning.
Detailed inspection of affected engine components.
Step
The whole engine must be inspected, repaired or overhauled in accordance
with the BRP-Powertrain instructions for continued airworthiness.
Check that the push-rods are straight.
Check differential pressure.
Inspect crankshaft with mounted drive gear for runout and distortion. See
chap. 72-00-00 section 3.9) and 3.18) of the Heavy Maintenance Manual.
Check if piston had contact with valve.
Check roundness of valves.
Procedure
Procedure
Procedure
Procedure
Procedure
05-50-00
page 11
January 01/2013