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Emergency



 
 
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  #1  
Old March 28th 06, 02:33 AM posted to rec.aviation.piloting,rec.aviation.student
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Default Emergency

I have long been convinced that becoming a truly proficient and competent
pilot is the result of the sum of a series of 'mini-emergencies' (not to
minimize yours - sounds like a REAL emergency). What I mean is that over
years of flying we all face small crises and we learn how to deal with them.
And each time we do, we become better crisis managers. A little ice this
time, a little low-fuel situation the next, two-out-of-three green on the
landing gear, strange sparks from the engine in-flight, and switching to the
wrong tanks at night. All recoverable, and all with lots of boring, 'normal'
flights in between. But each time, the ability to stay calm, aviate,
analyze, and correct makes for a better pilot, better able to handle the
'next one'.

As others have said, thanks for sharing your story. Glad things turned out
well. You criticize yourself for what you did wrong - how about all the
things you did right?
"Dan Luke" wrote in message
...
It was the 3rd leg of an Angel Flight and I wasn't even supposed to be
flying it. I'd already flown the second leg from Natchez, MS to
Monroeville, AL, but the 3rd leg pilot had mysteriously failed to show--no
call, no nothin'. It was late, I was tired and I was mad. I had two pax
aboard.

We were in the clouds and in the dark in a Cutlass RG approaching Macon,
GA (MCN). The outside temperature was 13 C and moisture was streaming
back on the windshield. The throttle was fully open, the RPM was set for
2500 and the mixture was leaned to 10.5 gph. The autopilot was holding
course and altitude. I was studying the ILS approach plate when I noticed
the AP's "up" trim warning light illuminate.

A quick scan of the instruments showed the IAS at 100 and falling;
normally it would indicate 125 at that altitude. I had detected no change
in the engine sound. I immediately hit the AP disable switch to prevent
its stalling the airplane. This was right and wrong, as I now had to do
all the flying while troubleshooting the problem. What I should have done
was disable the altitude hold and allow the AP to continue keeping us on
course and wings level.

Any attempt to lift the nose resulted in a sickening drop in airspeed.
The situation was now officially scary: we were going down on a dark,
rainy night over central Georgia.

I shoved the prop and mixture full forward, confirmed the throttle was
wide open and the primer was in. No improvement. There was no unusual
vibration. The engine still sounded good and was still making 2500 rpm,
but the prop was probably in flat pitch to do it. I tried the electric
fuel pump: no joy. I glanced at the JPI engine analyzer and saw that all
four cylinders showed roughly even EGTs. All this took much less than a
minute; maybe only 30 seconds.

Finally, I pulled the carb heat. Within a few seconds I felt a surge of
power and we began to climb. I don't know for sure what a death row inmate
feels like when the governor calls at the last minute, but I'm guessing it
feels something like that.

My heart was pounding in my chest and I was so stoked on adrenalin my
hands were shaking. The front seat passenger was looking at me
wide-eyed--he didn't know what was happening, but he had figured out
*something* wasn't right. I had wandered 40 deg. off course and Atlanta
Approach was repeating a frequency change instruction. In a few moments I
had us back on course and altitude but I was still somewhat rattled and
blew the readback on Atlanta's initial approach instructions. Got that
sorted out and made an uneventful ILS approach to runway 5 at MCN.

Not a totally satisfying performance. I ended up doing the right thing
and we lived; that's the good news. The bad news is that allowed myself
to rush things. A moment's thought would have prevented the autopilot
mistake. A calmer, more orderly flow through the engine controls would
have led me to the carb heat sooner and saved a few unnecessary extra
seconds of high anxiety. Next time I have an emergency (please: NO next
time!) I'll try to take it a little slower.

I'm still surprised that the carb iced up at full throttle. Conditions
were in the bad area of the carb ice chart, but my engine has never seemed
prone to the problem. In 650+ hours I've only detected carb ice once
before, and that was after a long taxi on a cool, rainy day.

--
Dan
C172RG at BFM



  #2  
Old March 28th 06, 04:23 AM posted to rec.aviation.piloting,rec.aviation.student
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Default Emergency

Glad you found the problem in time. Did your manifold pressure drop?
Otherwise, those of you with constant speed props have to be more
sensitive to carb icing as you don't get any other clues except maybe a
falling EGT.

Personally I've found manifold pressure and EGT to be an excellent
cross check on engine performance even though I'm flying a fixed pitch
A/C.

  #3  
Old April 1st 06, 02:29 PM posted to rec.aviation.piloting,rec.aviation.student
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Default Emergency

Glad you found the problem in time. Did your manifold pressure drop?

That was my first question, too. Dan?
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

  #4  
Old April 1st 06, 03:27 PM posted to rec.aviation.piloting,rec.aviation.student
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Default Emergency


"Jay Honeck" wrote:

Glad you found the problem in time. Did your manifold pressure drop?


That was my first question, too. Dan?


I must have looked, but what I remember is being mystified at why I couldn't
hold altitude when the engine seemed fine. Perhaps I mis-read the gauge. I
was doing several things at once and rushing everything.

It was all over so quickly I didn't have much time to really examine the
data!

--
Dan
C172RG at BFM


  #5  
Old March 28th 06, 05:32 AM posted to rec.aviation.piloting,rec.aviation.student
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Default Emergency


"pgbnh" wrote

I have long been convinced that becoming a truly proficient and competent
pilot is the result of the sum of a series of 'mini-emergencies' (not to
minimize yours - sounds like a REAL emergency). What I mean is that over
years of flying we all face small crises and we learn how to deal with

them.
And each time we do, we become better crisis managers.


I have to disagree, on that one. A proficient pilot never puts himself in a
situation like that, in the first place, ideally.

Dealing with them is all spin control. (not the kind where you go round and
round)
--
Jim in NC

  #6  
Old March 28th 06, 04:38 AM posted to rec.aviation.piloting,rec.aviation.student
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Default Emergency

Morgans wrote:

I have to disagree, on that one. A proficient pilot never puts himself in a
situation like that, in the first place, ideally.


If one flies a lot, one is bound to experience an unplanned mechanical
failure of some type that could be classified as a minor emergency.

Proficiency is not always about "avoiding" a situation, but rather
sometimes it is about "handling" an unavoidable situation.


--
Peter
  #7  
Old March 28th 06, 05:59 AM posted to rec.aviation.piloting,rec.aviation.student
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Default Emergency


"Peter R." wrote

If one flies a lot, one is bound to experience an unplanned mechanical
failure of some type that could be classified as a minor emergency.

Proficiency is not always about "avoiding" a situation, but rather
sometimes it is about "handling" an unavoidable situation.


True, and I hesitated to write that, because of situations not of the
pilot's doing, but examples given (carb heat, poor fuel planning, switching
to wrong tank at night, ect) "should" not ever happen.
--
Jim in NC


  #8  
Old March 28th 06, 05:03 AM posted to rec.aviation.piloting,rec.aviation.student
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Default Emergency

Morgans wrote:
I have long been convinced that becoming a truly proficient and competent
pilot is the result of the sum of a series of 'mini-emergencies' (not to
minimize yours - sounds like a REAL emergency). What I mean is that over
years of flying we all face small crises and we learn how to deal with them.
And each time we do, we become better crisis managers.


I have to disagree, on that one. A proficient pilot never puts himself in a
situation like that, in the first place, ideally.



That's an overly idealistic point of view. Some problems aren't easily avoided.
Ever flown into an embedded cell? I know how to avoid them... never fly when
there's a cloud in the sky.

However, since I intend to get some utility out of the airplane and my
instrument rating, I better know what to do when that cloud suddenly gets BUMPY.
Or when the manifold pressure starts slipping down a bit at a time when you're
solid IFR. These are problems; you better be able to deal with them. Simply
saying a proficient pilot doesn't get himself into these jams doesn't really cut
it.


--
Mortimer Schnerd, RN

VE


  #9  
Old March 28th 06, 06:18 AM posted to rec.aviation.piloting,rec.aviation.student
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Default Emergency


"Mortimer Schnerd, RN" wrote

That's an overly idealistic point of view.


Yep, you're right. I can't completely argue that point, but still, many
emergencies, especially those caused by the pilot, should be avoided. I
guess it was the examples given that rubbed me the wrong way. :-)
--
Jim in NC

  #10  
Old March 28th 06, 06:41 PM posted to rec.aviation.piloting,rec.aviation.student
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Default Emergency

"Morgans" wrote in message
...

Yep, you're right. I can't completely argue that point, but still, many
emergencies, especially those caused by the pilot, should be avoided. I
guess it was the examples given that rubbed me the wrong way. :-)
--
Jim in NC


Therefore the proficiency goal of all pilots should be to know both how to
avoid the situation and how to get out of it. This also has a built-in
verification check in that too much experience in one area means that the
other area probably needs more attention.

Marco



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