BRP-Rotax
MAINTENANCE MANUAL LINE
Chapter: 05–50–00
UNSCHEDULED MAINTENANCE CHECKS
TOPICS IN THIS CHAPTER
Removal of the propeller gearbox ...........................................................................................................2
Drive gear — removal ............................................................................................................................5
Installation of propeller gearbox ..............................................................................................................6
Propeller strike inspection .................................................................................................................... 11
Returning engine to service after submerging in water............................................................................17
Inspection in extreme climatic conditions ...............................................................................................18
Returning engine to service after influence by fire ..................................................................................18
Exceeding of max. admissible engine RPM ...........................................................................................18
Exceeding of max. cooling system temperature .....................................................................................20
Non compliance with the coolant specification .......................................................................................24
Exceeding the max. permissible oil temperature ....................................................................................25
Oil pressure below minimum value........................................................................................................26
Oil specification not respected ..............................................................................................................29
Spark plug not in accordance with specification .....................................................................................31
Non compliance of fuel quality ..............................................................................................................32
Smooth performance of the engine .......................................................................................................32
Lightning strike....................................................................................................................................33
Reporting............................................................................................................................................34
Introduction
Special checks must be carried out before next or further flights in the event of an engine
fault (e.g. abnormal operation as defined in the Operators Manual) which impairs the
airworthiness of the engine.
ATTENTION
In the course of special checks specify if additional checks for components (e.g.
hydraulic governor) are applicable. After each special check/repair work, an
engine test run and a leakage check must be carried out.
ATTENTION
Observe without fail all the specified instructions.
Effectivity: 912 Series
Rev. 0
Page 1
January 01 2020
