Rotax 915 i A SERIES - Sudden Increase in Boost Pressure and Speed; Periodic Rise and Fall in Boost Pressure and Speed (Vibration of Turbo Control Unit)

BRP-Rotax
MAINTENANCE MANUAL
SUDDEN INCREASE IN BOOST PRESSURE AND SPEED
General note
m WARNING
Non-compliance can result in serious injuries or death!
The engine must not be taken into operation before having corrected the cause of
deficiency.
ATTENTION
If the permissible operating limits are exceeded or values fall below the minimum, the
corresponding checks must be also be carried out.
Sudden drop in boost pressure and speed
Step
Procedure
1
Visual inspection of the engine, in particular
• Turbocharger
• Air intake system
2
Check wiring. See Chapter 12–20–00 section Check wiring.
NNOOTTEE
If no mechanical damage is detected during the visual inspection,
check the boost pressure control. See chapter 76–00–00 of the
Heavy Maintenance Manual.
PERIODIC RISE AND FALL IN BOOST PRESSURE AND SPEED (VIBRATION OF
TURBO CONTROL UNIT)
General note
m WARNING
Non-compliance can result in serious injuries or death!
The engine must not be taken into operation before having corrected the cause of
deficiency.
ATTENTION
If the permissible operating limits are exceeded or values fall below the minimum, the
corresponding checks must be also be carried out.
Effectivity: 915 i A Series
Edition 0/Rev. 0
05–50–00
Page 31
December 01 2017