AOPA Turbine Pilot Magazine - December 2021 - 90

RUDDER & WRENCH
Transient anomaly?
As all this was going through my mind,
something truly unexpected occurred:
The amber " ALT FAILURE: R ALT " light
went out. I quickly repeated my earlier
confirmation procedure and there was no
doubt about it-the right alternator had
spontaneously risen from the dead and
was working just fine now. Yee haw!
My agonizing go/no-go decision was
now a no-brainer. I launched for Wichita.
As fate would have it, the right alternator
performed flawlessly during the entire
three-hour flight to Wichita. Two days
later, it worked just fine during the short
hop to Independence, Kansas. Ditto on
the leg from there to Tulsa. The next day,
it never once hiccupped during the eighthour
flight to California (which included
a fuel stop at Albuquerque).
I've developed a term for a problem
90
like this that appears briefly and then
goes away without explanation: " transient
anomaly. " I've run into plenty of
them over five decades as an aircraft
owner. If you bring such a problem to an
A&P while it's still in the transient phase,
chances are the mechanic won't be able to
duplicate it and so won't be able to troubleshoot
it systematically and will have
no choice but to resort to a " shotgun "
approach: replacing parts and hoping to
get lucky.
I've learned that a better way to deal
with most such problems is to be patient,
sit tight, wait awhile, and see what happens.
If you do this, generally one of two
things will happen: Either the problem
will get worse, or it will go away. If it gets
worse, then it'll be reproducible and a
whole lot easier for you or your mechanic
to troubleshoot. If it goes away, it's probably
not worth worrying about...unless and
until it comes back.
Important: This " see what happens "
philosophy is appropriate only when
dealing with non-life-threatening problems.
If you see your oil pressure fluctuate
for 30 seconds and then everything
returns to normal, I would definitely not
recommend taking the " sit tight and wait
awhile " approach.
It's back!
After returning to California, the airplane
sat in the hangar for three weeks. Then I
needed to fly to Tucson, Arizona, to do
some teaching at an aviation event there.
When I started the engines, the right
alternator did not come on-line-seemingly
a replay of the scenario I'd faced in
Champaign, Illinois, a month earlier.
I let the engines idle for a minute,
hoping that the problem would cure itself
as it had before. Nope. I waited another
minute. No dice.
Once again, I agonized over my go/
no-go decision. There's an excellent shop
in Tucson where the problem could be
worked on while I gave my seminars.
No chance anyone had a replacement
Prestolite 100-amp alternator on the field

AOPA Turbine Pilot Magazine - December 2021

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

Contents
AOPA Turbine Pilot Magazine - December 2021 - Intro
AOPA Turbine Pilot Magazine - December 2021 - Cover1
AOPA Turbine Pilot Magazine - December 2021 - Cover2
AOPA Turbine Pilot Magazine - December 2021 - Contents
AOPA Turbine Pilot Magazine - December 2021 - 2
AOPA Turbine Pilot Magazine - December 2021 - 3
AOPA Turbine Pilot Magazine - December 2021 - 4
AOPA Turbine Pilot Magazine - December 2021 - 5
AOPA Turbine Pilot Magazine - December 2021 - 6
AOPA Turbine Pilot Magazine - December 2021 - 7
AOPA Turbine Pilot Magazine - December 2021 - 8
AOPA Turbine Pilot Magazine - December 2021 - 9
AOPA Turbine Pilot Magazine - December 2021 - 10
AOPA Turbine Pilot Magazine - December 2021 - 11
AOPA Turbine Pilot Magazine - December 2021 - 12
AOPA Turbine Pilot Magazine - December 2021 - 13
AOPA Turbine Pilot Magazine - December 2021 - 14
AOPA Turbine Pilot Magazine - December 2021 - 15
AOPA Turbine Pilot Magazine - December 2021 - 16
AOPA Turbine Pilot Magazine - December 2021 - 17
AOPA Turbine Pilot Magazine - December 2021 - 18
AOPA Turbine Pilot Magazine - December 2021 - 19
AOPA Turbine Pilot Magazine - December 2021 - 20
AOPA Turbine Pilot Magazine - December 2021 - 21
AOPA Turbine Pilot Magazine - December 2021 - 22
AOPA Turbine Pilot Magazine - December 2021 - 23
AOPA Turbine Pilot Magazine - December 2021 - 24
AOPA Turbine Pilot Magazine - December 2021 - 25
AOPA Turbine Pilot Magazine - December 2021 - 26
AOPA Turbine Pilot Magazine - December 2021 - 27
AOPA Turbine Pilot Magazine - December 2021 - 28
AOPA Turbine Pilot Magazine - December 2021 - 29
AOPA Turbine Pilot Magazine - December 2021 - 30
AOPA Turbine Pilot Magazine - December 2021 - 31
AOPA Turbine Pilot Magazine - December 2021 - 32
AOPA Turbine Pilot Magazine - December 2021 - 33
AOPA Turbine Pilot Magazine - December 2021 - 34
AOPA Turbine Pilot Magazine - December 2021 - 35
AOPA Turbine Pilot Magazine - December 2021 - 36
AOPA Turbine Pilot Magazine - December 2021 - 37
AOPA Turbine Pilot Magazine - December 2021 - 38
AOPA Turbine Pilot Magazine - December 2021 - 39
AOPA Turbine Pilot Magazine - December 2021 - 40
AOPA Turbine Pilot Magazine - December 2021 - 41
AOPA Turbine Pilot Magazine - December 2021 - 42
AOPA Turbine Pilot Magazine - December 2021 - 43
AOPA Turbine Pilot Magazine - December 2021 - 44
AOPA Turbine Pilot Magazine - December 2021 - 45
AOPA Turbine Pilot Magazine - December 2021 - 46
AOPA Turbine Pilot Magazine - December 2021 - 47
AOPA Turbine Pilot Magazine - December 2021 - 48
AOPA Turbine Pilot Magazine - December 2021 - T-1
AOPA Turbine Pilot Magazine - December 2021 - T-2
AOPA Turbine Pilot Magazine - December 2021 - T-3
AOPA Turbine Pilot Magazine - December 2021 - T-4
AOPA Turbine Pilot Magazine - December 2021 - T-5
AOPA Turbine Pilot Magazine - December 2021 - T-6
AOPA Turbine Pilot Magazine - December 2021 - T-7
AOPA Turbine Pilot Magazine - December 2021 - T-8
AOPA Turbine Pilot Magazine - December 2021 - T-9
AOPA Turbine Pilot Magazine - December 2021 - T-10
AOPA Turbine Pilot Magazine - December 2021 - T-11
AOPA Turbine Pilot Magazine - December 2021 - T-12
AOPA Turbine Pilot Magazine - December 2021 - T-13
AOPA Turbine Pilot Magazine - December 2021 - T-14
AOPA Turbine Pilot Magazine - December 2021 - T-15
AOPA Turbine Pilot Magazine - December 2021 - T-16
AOPA Turbine Pilot Magazine - December 2021 - 49
AOPA Turbine Pilot Magazine - December 2021 - 50
AOPA Turbine Pilot Magazine - December 2021 - 51
AOPA Turbine Pilot Magazine - December 2021 - 52
AOPA Turbine Pilot Magazine - December 2021 - 53
AOPA Turbine Pilot Magazine - December 2021 - 54
AOPA Turbine Pilot Magazine - December 2021 - 55
AOPA Turbine Pilot Magazine - December 2021 - 56
AOPA Turbine Pilot Magazine - December 2021 - 57
AOPA Turbine Pilot Magazine - December 2021 - 58
AOPA Turbine Pilot Magazine - December 2021 - 59
AOPA Turbine Pilot Magazine - December 2021 - 60
AOPA Turbine Pilot Magazine - December 2021 - 61
AOPA Turbine Pilot Magazine - December 2021 - 62
AOPA Turbine Pilot Magazine - December 2021 - 63
AOPA Turbine Pilot Magazine - December 2021 - 64
AOPA Turbine Pilot Magazine - December 2021 - 65
AOPA Turbine Pilot Magazine - December 2021 - 66
AOPA Turbine Pilot Magazine - December 2021 - 67
AOPA Turbine Pilot Magazine - December 2021 - 68
AOPA Turbine Pilot Magazine - December 2021 - 69
AOPA Turbine Pilot Magazine - December 2021 - 70
AOPA Turbine Pilot Magazine - December 2021 - 71
AOPA Turbine Pilot Magazine - December 2021 - 72
AOPA Turbine Pilot Magazine - December 2021 - 73
AOPA Turbine Pilot Magazine - December 2021 - 74
AOPA Turbine Pilot Magazine - December 2021 - 75
AOPA Turbine Pilot Magazine - December 2021 - 76
AOPA Turbine Pilot Magazine - December 2021 - 77
AOPA Turbine Pilot Magazine - December 2021 - 78
AOPA Turbine Pilot Magazine - December 2021 - 79
AOPA Turbine Pilot Magazine - December 2021 - 80
AOPA Turbine Pilot Magazine - December 2021 - 81
AOPA Turbine Pilot Magazine - December 2021 - 82
AOPA Turbine Pilot Magazine - December 2021 - 83
AOPA Turbine Pilot Magazine - December 2021 - 84
AOPA Turbine Pilot Magazine - December 2021 - 85
AOPA Turbine Pilot Magazine - December 2021 - 86
AOPA Turbine Pilot Magazine - December 2021 - 87
AOPA Turbine Pilot Magazine - December 2021 - 88
AOPA Turbine Pilot Magazine - December 2021 - 89
AOPA Turbine Pilot Magazine - December 2021 - 90
AOPA Turbine Pilot Magazine - December 2021 - 91
AOPA Turbine Pilot Magazine - December 2021 - 92
AOPA Turbine Pilot Magazine - December 2021 - 93
AOPA Turbine Pilot Magazine - December 2021 - 94
AOPA Turbine Pilot Magazine - December 2021 - 95
AOPA Turbine Pilot Magazine - December 2021 - 96
AOPA Turbine Pilot Magazine - December 2021 - 97
AOPA Turbine Pilot Magazine - December 2021 - 98
AOPA Turbine Pilot Magazine - December 2021 - 99
AOPA Turbine Pilot Magazine - December 2021 - 100
AOPA Turbine Pilot Magazine - December 2021 - 101
AOPA Turbine Pilot Magazine - December 2021 - 102
AOPA Turbine Pilot Magazine - December 2021 - 103
AOPA Turbine Pilot Magazine - December 2021 - 104
AOPA Turbine Pilot Magazine - December 2021 - 105
AOPA Turbine Pilot Magazine - December 2021 - 106
AOPA Turbine Pilot Magazine - December 2021 - 107
AOPA Turbine Pilot Magazine - December 2021 - 108
AOPA Turbine Pilot Magazine - December 2021 - 109
AOPA Turbine Pilot Magazine - December 2021 - 110
AOPA Turbine Pilot Magazine - December 2021 - 111
AOPA Turbine Pilot Magazine - December 2021 - 112
AOPA Turbine Pilot Magazine - December 2021 - Cover3
AOPA Turbine Pilot Magazine - December 2021 - Cover4
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