Teledyne Continental Motors, Inc.
TM
Standard
Practices
IOF-240 Series Engine Maintenance Manual
C-5
29 November 2006
Therefore, in accordance with FARs, certification of materials, parts, and appliances for
aircraft return to service is the responsibility of the person or agency who signs the
approval. The owner/operator is responsible for the continued airworthiness of the
aircraft. To assure continued safety in aircraft operation, it is essential that great care be
used when inspecting, testing, and determining the acceptability of all parts and
materials. Particular caution should be exercised when the identity of materials, parts, and
appliances cannot be established or when their origin is in doubt.
C-2.4. 100% Parts Replacement Requirements
NOTE: Service documents published or revised subsequent to the
issuance of this publication may mandate the replacement of
components and parts not included in these instructions. At engine
overhaul, the technician must review all service bulletins to ensure
compliance with the manufacturer’s requirements for continued
airworthiness.
Replace all gaskets, seals, packing, hoses, O-rings, cotter pins, retaining rings (snap
rings), safety wire, self locking fasteners (including exhaust nuts), and lock washers with
new parts during assembly, regardless of the type of maintenance.
Do not re-use worn, damaged or deformed fasteners. Do not replate cadmium plated
fasteners or washers. If the cadmium plating has been removed, discard the item and
replace it with a new part.
Engine mounted accessories must be maintained in accordance with the manufacturer’s
instructions. Additionally, accessories must be overhauled during engine overhaul, or
more frequently, in accordance with the manufacturer’s instructions.
At engine overhaul the starter, alternator, magnetos and engine fuel system must be
overhauled. On turbocharged engines, the turbocharger, waste gate, controller and
exhaust system must be overhauled. All engine baffles must be repaired or replaced and
all flexible baffle seals replaced.
Items such as spark plugs, alternator drive belts and air-conditioning drive belts are
replaced on condition.