BRP Rotax 915 i A Series Maintenance Manual page 65

Aircraft engine

Table of Contents

TOPICS IN THIS CHAPTER

Engine check after propeller strike incidents ..........................................................................................2

Removal of the propeller gearbox ...........................................................................................................2

Removal of the drive gear ......................................................................................................................6

Installation of propeller gearbox ..............................................................................................................8

Examination after engine failure ............................................................................................................14

Returning engine to service after submerging in water............................................................................15

Inspection in extreme climatic conditions ...............................................................................................16

Diminished functional capability of EMS ................................................................................................16

Returning engine to service after influence by fire ..................................................................................17

Exceeding of max. admissible engine RPM ...........................................................................................17

Exceeding of max. coolant temperature.................................................................................................19

Non compliance with the coolant specification .......................................................................................20

Exceeding the max. permissible oil temperature ....................................................................................22

Oil pressure below minimum value........................................................................................................23

Oil specification not respected ..............................................................................................................26

Spark plug not in accordance with specification .....................................................................................28

Non compliance of fuel quality ..............................................................................................................28

Smooth performance of the engine .......................................................................................................29

Sudden drop in boost pressure and speed.............................................................................................30

Sudden increase in boost pressure and speed.......................................................................................31

Periodic rise and fall in boost pressure and speed (vibration of turbo control

unit)....................................................................................................................................................31

Lightning strike....................................................................................................................................32

Reporting............................................................................................................................................33

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.

In the course of special checks specify if additional checks for components (e.g.

Effectivity: 915 i A Series

Rev. 1

MAINTENANCE MANUAL LINE

Chapter: 05-50-00

UNSCHEDULED MAINTENANCE CHECKS

hydraulic governor) is applicable. After each special check/repair work, an

engine test run and a leakage check must be carried out.