BRP-Rotax
MAINTENANCE MANUAL LINE
5800 rpm up to
max. 6200 rpm
If the limit was exceeded for more than 1 minute up to 6200 rpm.
Step
Procedure
1 Check that the push-rods are straight.
6200 rpm up to
max. 6500 rpm
If the limit was exceeded for max. 1 minute up to 6500 rpm.
Step
Procedure
1
Check that the push-rods are straight.
6200 rpm up to
max. 6500 rpm
If the limit was exceeded for more than 1 minute up to 6500 rpm.
Step
Procedure
1 The whole engine must be inspected, repaired or overhauled in accordance
with the BRP-Rotax instructions for continued airworthiness.
2
Check that the push-rods are straight.
3 Inspect the crankshaft for out-of-roundness and distortion. See Chapter 72-
00-00 of the latest Heavy Maintenance Manual.
4
Inspect all systems for correct functioning.
5
Detailed inspection of affected engine components.
more than 6500
rpm
If the speed of 6500 rpm was exceeded.
Step
Procedure
1 The whole engine must be inspected, repaired or overhauled in accord-
ance with the BRP-Rotax instructions for continued airworthiness.
2 Check cylinder differential pressure.
3
Check that the push-rods are straight.
4
Check if piston had contact with valve.
5
Check for out of roundness of valves.
6
Replace the crankshaft. Check the drive gear for out-of-roundness and dis-
tortion. See Chapter 72-00-00 of the Heavy Maintenance Manual.
7
Inspect all systems for correct functioning.
8
Detailed inspection of affected engine components.
Effectivity: 912 Series
Rev. 0
05–50–00
Page 19
January 01 2020
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