Engine Operation; Step 1. Pre-Flight Check; Step 2. Engine Start - Lycoming IO-390-D Series Installation And Operation Manual

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Maintenance manual (322 pages)

Table Of Contents

Table of Contents

IO-390-D Series Engine Installation and Operation Manual

The procedures in this chapter are for routine engine operation. The steps in Table 1 must be

completed in the order shown for engine operation during routine service

Step

NOTICE: In this chapter the term "magneto" can refer to either the Lycoming Electronic Ignition

System (EIS) or optional, traditional magnetos, depending on the type of system

installed on the engine.

Step 1. Pre-Flight Check

Refer to the Pilot's Operating Handbook (POH) and complete a Pre-Flight Check before starting the

engine.

NOTICE: Examine the air filters every other flight for dirt and be prepared to clean or replace

them if necessary.

If the aircraft is flown in dusty conditions, more frequent oil changes are recommended.

Install dust covers over openings in the cowling for additional protection. Refer to the

section "Volcanic Ash" in the "Engine Conditions" chapter in this manual.

Step 2. Engine Start

WARNING

MAKE SURE THAT THE AREA AROUND THE PROPELLER IS CLEAR OF

PERSONNEL OR ANY OBSTRUCTION BEFORE STARTING THE

ENGINE. IF THE PROPELLER HITS AN OBJECT, DO NOT PROCEED

WITH FLIGHT. REFER TO THE LATEST REVISION OF SERVICE

BULLETIN NO. SB-533.

NOTICE: If the engine is to be started in an environment at temperatures less than +10°F (-12°C),

refer to the section "Apply Heat to a Cold Engine" in the "Engine Conditions" chapter

in this manual. If the engine is to be operated at temperatures over 90°F (32°C), refer to

"Engine Operation in Hot Weather" in the "Engine Conditions" chapter in this manual.

The following is Lycoming Engine's recommended start procedure. If there is any

variation between the start procedure in the aircraft manufacturer's POH and Lycoming

Engine's recommended start procedure, follow the aircraft manufacturer's POH

procedure.

1. Complete specified steps for engine start recommended by the aircraft POH, aircraft

manufacturer, or Supplemental Type Certificate (STC) holder's instructions.

March 2020