Mailing List lml@lancaironline.net Message #20576
From: Ron and Marlene Brice <rbrice@inter-linc.net>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: Needless loss N27RM
Date: Sat, 20 Sep 2003 17:09:01 -0400
To: <lml@lancaironline.net>

I am sure you have all read my epistle yesterday when I was still in shock.

 

Last night, needless to say, I did not have the blessing of being able to sleep.  I spent the night reviewing all the situations, and wish to pass along some items for all to learn by.

 

When my Legacy was first finished and brought to this field, I felt uncomfortable.  I shared my thoughts with many wise pilots, listened to their advice, got my angle of attack working, and began to practice until I was, finally, more than comfortable in my environment. (As long as everything was working well!)  Peter Stiles did an accelerate/stop distance for me, and at 3000 feet density altitude, the total distance to accelerate to rotate speed and stop was less than ½ of my runway distance.  So far so good.

 

Let me share the runway data:    2600 feet long at 1000 feet above sea level, newly surfaced asphalt, so far so good.  Width 24 feet, not so good.  Hump in the middle, (can’t see one end from the other when on the ground), not so bad, but not real good.  Runway is 12/30, surrounded almost completely by the deep water of Table Rock Lake.  On the approach end of 30 there is a 400 foot AGL hill with a large Cell antennae about 2500 feet from the approach end of 30.  The other end has a hill 300 feet AGL with a gradual rise starting almost immediately after lift off, top of hill is about 1000’ from end of runway.  All terrain in the vicinity has a profuse stand of large old mature Oak Trees.  There is no emergency field anywhere near the airport, and neither runway has any significant over-run.

 

As I said, I finally felt more than comfortable, but the nagging thought was that I needed to “be on my toes” at all times.  Unless I put it “on the numbers” on landing, I went around.  All take-offs were completely uneventful until yesterday.

 

Now for the list of things I SHOULD have done or considered.

 

# 1  I should have used a written list on pre-flight (I know, that for most of us, that sounds silly, but for me this would have saved my airplane) I missed looking adequately at the pitot tube.

 

# 2  At the first hint of airspeed problems, I should have aborted.  I should not have looked outside with the thought of continuing, only to abort.  When I saw the airspeed begin to accelerate once again, I should have already been aborting. 

 

# 3  I should have remembered the fact that I had taped up the pitot tube, but can honestly say that until I came to rest, I never even thought of that.  As the unusual situation became an item, I let the runway environment and stress get the best of me.  Once again, this would have saved my airplane.

 

# 3  I should have paid proper attention to the perceived rate of speed instead of judging only by my airspeed and angle of attack oral warning.

 

# 4  I could have easily glanced at my MX-20 and read the correct ground speed.  Really quite large numbers, and readily there for me to cross check.

 

# 5  I should have had a better working knowledge of my angle of attack (Jim Frantz PRO model).  I should have known that I would get a “warning” with pitot blockage.  I “knew” the angle of attack had a pitot and static input, because I physically hooked up the tubing myself, even removed the unit and sent it in for repair once, and re-installed it.  I did not have a satisfactory working knowledge that the angle of attack would give me a warning if the angle of attack was good, but pitot was blocked.  I did not take time to look at the angle of attack, only used the oral warning as my decision maker that the airplane was not safe to fly.  I’m quite sure the angle of attack was and would have stayed in the green had I referred only to the indicator and ignored the oral warning.  Totally my error in not fully understanding the system that would have, after I failed to abort in item # 1 above, saved my airplane.  I had plenty of speed to fly safely, and I have had pitot failure both in the Navy and Airline after getting airborne, so I know how to fly safely without pitot speed.

 

It all boils down to one simple fact.  I let the stress of a less than perfect runway cloud my mind and not allow for proper and prudent judgment, plain and simple.

 

There was nothing wrong with the airplane (other than pitot blockage), nothing wrong with the weather, nothing wrong with the runway, and although I spent precious mini seconds analyzing engine indications, I had more than adequate power.  I suspect I will find something inside the pitot tube, as I now believe that the prop wash, or initial airspeed input either blew away the paper I taped over the tube as a precaution, or tore it up and a small piece of paper lodged inside the tube.  Otherwise, I would have not had an airspeed indication at all,  and would not have had any stress in my decision to abort.

 

I sincerely hope at least one pilot learns something from this sad loss.  The only good news is that I am unhurt, and the bad news is that I now can beat myself to pieces mentally by realizing all the things I “could” have done to save my airplane (and the total embarrassment I am suffering, which is almost as bad as losing N27RM).  Even a relatively new student pilot should not have made this many mistakes, all in the same day!

 

May I take a moment to caution all Lancair pilots that you cannot see the pitot tube from the cockpit, and caution you to take an extra measure to look inside the opening as well as uncover it on pre-flight.

 

Regards,

 

Ron

 

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