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OVERHAUL/SERVICE Q&A
Why do I have to overhaul my propeller after 5 or 6
years when it has limited time since last overhaul?
We recommend you adhere to the manufacturer's
published overhaul limits to protect your safety, your
investment and to maximize the safe operating life of
your propeller.
During normal operation, an aircraft propeller is
subjected to 10 to 20 tons of centrifugal force per
blade. It is necessary to have the propeller overhauled
at the recommended intervals to avoid a
propeller-related incident/accident that could result in
serious injury or death.
What
will you do to my propeller during overhaul?
An overhaul, by definition, is the periodic
disassembly, inspection, repair, refinish and reassembly
of a propeller system.
Prop Works is equipped with all the specialized tools
and fixtures required to disassemble and reassemble the
propeller. Technicians will disassemble and conduct a
thorough inspection of all reusable parts. The
assessment includes visual, magnetic particle, eddy
current and penetrant inspections. Additionally, we will
dimensionally inspect all reusable parts ensuring they
are within tolerance after any type of repair and
eliminate all evidence of scratches, nicks, burrs,
corrosion and other damage. The propeller is then
reassembled to factory specifications, lubricated,
balanced and returned to service having complied with
all applicable service documents and airworthiness
directives.
I have a large nick on the edge of one of my blades, can
I repair it?
Local repairs to aluminum
blades may be made by an A&P mechanic, propeller
repairman or the aircraft builder (experimental) in
accordance with FAA Advisory Circular 43.13-1B.
Composite blade inspection and repair requires specific
training, equipment and techniques.
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