AOPA Pilot Magazine - July 2021 - 99

towel, let it evaporate, and see if it leaves
an oily ring.
Think of Jet A as being fuel with a
zero-octane rating. Any piston engine
that tries to run on pure Jet A will go into
instant destructive detonation. In real life,
however, we don't encounter that situation
because our fuel tanks are almost
never completely dry when the aircraft is
refueled-or misfueled.
The real-world problem is not running
JUST BECAUSE THE FUEL LOOKS BLUE doesn't
mean that you haven't been misfueled with
Jet A.
on pure Jet A, but on running on a mixture
of 100LL and Jet A. Depending on the
mixture ratio of the two fuels, the effective
octane rating can be anything between zero
and 100. A mixture with a lot of Jet A and
just a little 100LL might be detectable during
runup. A 50/50 mix might not start to
detonate until full power is applied, and the
engine might fail catastrophically 30 seconds
or 3 minutes after takeoff. Just a little Jet A
contamination might produce only moderate
detonation that might eventually cause spark
plug nose core insulators to crack or might
not be noticeable at all. Like so many other
things in aviation, it all depends.
The Cirrus SR22 accident in Brazil and
the Cessna 421B accident in Texas remind
us that the problem of misfueling is still
with us, despite the efforts of the FAA to
eradicate it. As pilots, we need to be vigilant.
Always watch your airplane being
fueled if you possibly can. Make sure its
fuel filler ports are equipped with restrictor
openings. Don't just look at the fuel
you drain from your sumps, sniff it-and
if there's any doubt, pour some on a paper
towel.
AOPA
MIKE BUSCH is an A&P/IA.
EMAIL mike.busch@savvyaviation.com
savvyaviation.com
ASK THE A&PS
Have a maintenance question?
Submit your questions to
podcasts@aopa.org.
aopa.org/podcasts
| 99
A 400-HOUR TBO
EXTENSION IS REAL VALUE
Lycoming holds itself to its own standard - the Lycoming Standard.
It is a bar, continuously raised, to be better than everyone, including
ourselves. For example, our recent 200-hour
TBO extensions give our customers more flying time,
increased cost efficiency, and peace of mind.
In some cases, 400-hour TBO extensions can be approved.
Genuine Lycoming engines and parts are held to high quality
standards, offer improved wear characteristics, and incorporate
Lycoming's latest innovations and enhancements. Add all this to our
customer service, which is unmatched in general aviation, and a
factory warranty, and you quickly realize that a genuine Lycoming
engine is the right choice.
There is no substitute for the reliability and durability that you expect
and receive from Lycoming. Don't trust your safety to imitations.
Choose a genuine Lycoming.
Contact an authorized Lycoming Distributor to purchase genuine
Lycoming engines and parts.
www.Lycoming.com
© 2021 Avco Corporation
http://www.savvyaviation.com http://www.aopa.org/podcasts http://www.Lycoming.com

AOPA Pilot Magazine - July 2021

Table of Contents for the Digital Edition of AOPA Pilot Magazine - July 2021

Contents
AOPA Pilot Magazine - July 2021 - Intro
AOPA Pilot Magazine - July 2021 - Cover1
AOPA Pilot Magazine - July 2021 - Cover2
AOPA Pilot Magazine - July 2021 - Contents
AOPA Pilot Magazine - July 2021 - 2
AOPA Pilot Magazine - July 2021 - 3
AOPA Pilot Magazine - July 2021 - 4
AOPA Pilot Magazine - July 2021 - 5
AOPA Pilot Magazine - July 2021 - 6
AOPA Pilot Magazine - July 2021 - 7
AOPA Pilot Magazine - July 2021 - 8
AOPA Pilot Magazine - July 2021 - 9
AOPA Pilot Magazine - July 2021 - 10
AOPA Pilot Magazine - July 2021 - 11
AOPA Pilot Magazine - July 2021 - 12
AOPA Pilot Magazine - July 2021 - 13
AOPA Pilot Magazine - July 2021 - 14
AOPA Pilot Magazine - July 2021 - 15
AOPA Pilot Magazine - July 2021 - 16
AOPA Pilot Magazine - July 2021 - 17
AOPA Pilot Magazine - July 2021 - 18
AOPA Pilot Magazine - July 2021 - 19
AOPA Pilot Magazine - July 2021 - 20
AOPA Pilot Magazine - July 2021 - 21
AOPA Pilot Magazine - July 2021 - 22
AOPA Pilot Magazine - July 2021 - 23
AOPA Pilot Magazine - July 2021 - 24
AOPA Pilot Magazine - July 2021 - 25
AOPA Pilot Magazine - July 2021 - 26
AOPA Pilot Magazine - July 2021 - 27
AOPA Pilot Magazine - July 2021 - 28
AOPA Pilot Magazine - July 2021 - 29
AOPA Pilot Magazine - July 2021 - 30
AOPA Pilot Magazine - July 2021 - 31
AOPA Pilot Magazine - July 2021 - 32
AOPA Pilot Magazine - July 2021 - 33
AOPA Pilot Magazine - July 2021 - 34
AOPA Pilot Magazine - July 2021 - 35
AOPA Pilot Magazine - July 2021 - 36
AOPA Pilot Magazine - July 2021 - 37
AOPA Pilot Magazine - July 2021 - 38
AOPA Pilot Magazine - July 2021 - 39
AOPA Pilot Magazine - July 2021 - 40
AOPA Pilot Magazine - July 2021 - 41
AOPA Pilot Magazine - July 2021 - 42
AOPA Pilot Magazine - July 2021 - 43
AOPA Pilot Magazine - July 2021 - 44
AOPA Pilot Magazine - July 2021 - 45
AOPA Pilot Magazine - July 2021 - 46
AOPA Pilot Magazine - July 2021 - 47
AOPA Pilot Magazine - July 2021 - 48
AOPA Pilot Magazine - July 2021 - 49
AOPA Pilot Magazine - July 2021 - 50
AOPA Pilot Magazine - July 2021 - 51
AOPA Pilot Magazine - July 2021 - 52
AOPA Pilot Magazine - July 2021 - 53
AOPA Pilot Magazine - July 2021 - 54
AOPA Pilot Magazine - July 2021 - 55
AOPA Pilot Magazine - July 2021 - 56
AOPA Pilot Magazine - July 2021 - 57
AOPA Pilot Magazine - July 2021 - 58
AOPA Pilot Magazine - July 2021 - 59
AOPA Pilot Magazine - July 2021 - 60
AOPA Pilot Magazine - July 2021 - 61
AOPA Pilot Magazine - July 2021 - 62
AOPA Pilot Magazine - July 2021 - 63
AOPA Pilot Magazine - July 2021 - 64
AOPA Pilot Magazine - July 2021 - 65
AOPA Pilot Magazine - July 2021 - 66
AOPA Pilot Magazine - July 2021 - 67
AOPA Pilot Magazine - July 2021 - 68
AOPA Pilot Magazine - July 2021 - 69
AOPA Pilot Magazine - July 2021 - 70
AOPA Pilot Magazine - July 2021 - 71
AOPA Pilot Magazine - July 2021 - 72
AOPA Pilot Magazine - July 2021 - 73
AOPA Pilot Magazine - July 2021 - 74
AOPA Pilot Magazine - July 2021 - 75
AOPA Pilot Magazine - July 2021 - 76
AOPA Pilot Magazine - July 2021 - 77
AOPA Pilot Magazine - July 2021 - 78
AOPA Pilot Magazine - July 2021 - 79
AOPA Pilot Magazine - July 2021 - 80
AOPA Pilot Magazine - July 2021 - 81
AOPA Pilot Magazine - July 2021 - 82
AOPA Pilot Magazine - July 2021 - 83
AOPA Pilot Magazine - July 2021 - 84
AOPA Pilot Magazine - July 2021 - 85
AOPA Pilot Magazine - July 2021 - 86
AOPA Pilot Magazine - July 2021 - 87
AOPA Pilot Magazine - July 2021 - 88
AOPA Pilot Magazine - July 2021 - 89
AOPA Pilot Magazine - July 2021 - 90
AOPA Pilot Magazine - July 2021 - 91
AOPA Pilot Magazine - July 2021 - 92
AOPA Pilot Magazine - July 2021 - 93
AOPA Pilot Magazine - July 2021 - 94
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AOPA Pilot Magazine - July 2021 - 96
AOPA Pilot Magazine - July 2021 - 97
AOPA Pilot Magazine - July 2021 - 98
AOPA Pilot Magazine - July 2021 - 99
AOPA Pilot Magazine - July 2021 - 100
AOPA Pilot Magazine - July 2021 - 101
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AOPA Pilot Magazine - July 2021 - 103
AOPA Pilot Magazine - July 2021 - 104
AOPA Pilot Magazine - July 2021 - 105
AOPA Pilot Magazine - July 2021 - 106
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AOPA Pilot Magazine - July 2021 - 109
AOPA Pilot Magazine - July 2021 - 110
AOPA Pilot Magazine - July 2021 - 111
AOPA Pilot Magazine - July 2021 - 112
AOPA Pilot Magazine - July 2021 - Cover3
AOPA Pilot Magazine - July 2021 - Cover4
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https://www.nxtbook.com/nxtbooks/aopa/pilot_201912
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https://www.nxtbook.com/nxtbooks/aopa/pilot_201905
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