Marv, et al,
I don't think there was any implication that the airframe was the cause of
failures other than its, uh, "different" handling characteristics. I
thought the FAA was right on, even though there was no emphasis that
"low time in type" indicates a very high accident rate and the anon LOBOer
pointed that out. However, I believe the low time in type analysis
applies to non amateur built aircraft, too.
I think the 4 recommendations are pretty much in line with what LOBO also
recommends, especially #1.
#2 was recently discussed on the LML, along with the faults in
AOA systems that don't directly read wing pressures (perhaps this is what caused
the FF to rescind).
#3 should be well understood by the pilot as mis-rigging (especially flaps)
can lead to unusual stall characteristics in different configurations and some
of this is discussed in the LOBO maintenance seminars.
OK, #4 is a bit wordy and somewhat vague except for the last silly sentence
(perhaps another reason it was rescinded).
I look forward to the rewrite.......
Scott Krueger
Just 134 hours short of 1000 in type.
FAA Recommendations:
1. Review and thoroughly understand all available information regarding
the slow-flight and stall characteristics of their own Lancair. In addition,
obtain specialized training from a certificated flight instructor (CFI) in their
Lancair model or other similar high-performance airplane to experience slow
flight handling characteristics, stall recognition, and stall recovery
techniques.
2. Install a high-quality angle-of-attack (AOA) indicator to
provide warning of an impending stall. Owners that already have an AOA indicator
installed should have the calibration validated to assure proper operation.
Lancair flight characteristics, including stall speeds, can vary from airplane
to airplane, and many Lancairs have been known to stall with little or no
warning.
3. Lancair owner/operators should have their aircraft evaluated by a
mechanic with Lancair maintenance experience for proper rigging, wing alignment,
and weight and balance.
4. Lancair airplane builders should use the services
of experienced and qualified construction evaluators who are familiar with the
Lancair construction, rigging, flight, and handling characteristics. This should
be done before further flight.
In a message dated 10/9/2009 9:09:00 A.M. Central Daylight Time,
marv@lancair.net writes:
Posted for "Bruce Gray"
<Bruce@Glasair.org>:
Does this mean the information is
wrong or someone applied
political
pressure?
Bruce
www.Glasair.org
[It probably just means that the common sense applied by our anonymous
LOBO person must have sunken in... hardly any accidents have been caused by
airframe failures... in other words, it's not the airplane's fault, it's a
training and piloting issue. Remember many years ago when they called
the Bonanza the "doctor killer"? Same principal... lack of
training, poor judgement, just because you're good at one thing doesn't
automatically make you good at (and prepared for the challenges of) everything
else. <Marv> ]
-----Original
Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On
Behalf Of
Tom McNerney
Sent: Thursday, October 08, 2009
10:08 PM
To: lml@lancaironline.net
Subject: [LML] FAA
RESCINDS INFO LETTER
See
link:
http://www.eaa.org/news/2009/2009-10-08_lancair.asp
Tom
--
For
archives and
unsub
http://mail.lancaironline.net:81/lists/lml/List.html
--
For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html