IO-240 Series Engine Installation & Operation Manual
4-1
31 October 2011
Engine Operation
Chapter 4. Engine Operation
4-1. Introduction
This chapter contains IO-240 engine operating instructions to supplement the AFM/POH.
•
Flight Prerequisites
•
Normal Operation
•
Emergency Operation
•
Operation in Abnormal Environments
This chapter provides IO-240 engine operating instructions with fixed pitch propellers and
supplements information in the Airplane Flight Manual (AFM) or Pilot's Operating
Handbook (POH) provided by the airframe manufacturer or supplemental type certificate
holder as required by the Federal Aviation Regulations (FAR) for aircraft operating
procedures.
CAUTION: This section pertains to engine operations under various
operating conditions. Normal operations are presented first,
followed by emergency and abnormal operating conditions. The pilot
must read and thoroughly understand Section 4-4 and Section 4-5
prior to the occurrence of such conditions. Whenever abnormal
conditions arise, timely response is critical.
4-2. Flight Prerequisites
If the engine is newly installed and/or has been repaired/overhauled, perform the
sequential tasks listed in the “Engine Operational Check” instructions in Section 6-3.6 of
the Maintenance and Overhaul Manual (M-6) prior to releasing the engine for normal
operation.
WARNING
The “Engine Operational Check”
in Section 6-3.6 of the
Maintenance and Overhaul Manual (M-6) must be completed
on an engine that has been installed, inspected, repaired, or
overhauled before the aircraft can be released for normal
operation.
DO NOT FLY THE AIRCRAFT UNTIL ALL FLIGHT
PREREQUISITES HAVE BEEN MET.
NOTE: Environmental conditions (humidity), seasonal changes, and
engine usage influence susceptibility to corrosion. Engines that are flown
occasionally (less than one time per week) are more vulnerable to
corrosion under these conditions. The best method of reducing the risk of
corrosion is to fly the aircraft weekly for at least one hour. The owner/
operator is ultimately responsible for recognizing corrosion and taking
appropriate corrective action.
After successful completion of the Engine Operational Check, perform a Flight Check
according to instructions in Section 4-2.3.
Summary of Contents for IO-240-A
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