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Distracted during the emergency by a spinning
heading indicator and see-saw attitude indicator, he
later reflected, “All my initial and recurrent partial
panel training has been accomplished using suction
cup style covers over the attitude and heading
indicators. In this actual event, I found it difficult
to ignore the erroneous information presented by
these instruments.”
A number of readers empathized with this pilot’s
predicament, and a few took us gently to task for
not mentioning the obvious:
✍ Had I the opportunity, I would point out to the
reporter that there is nothing to prevent him/her
from sticking a couple of these suction cup covers in
close proximity to those critical instruments and in
the event of a failure, [to] cover those malfunctioning
instruments with the suction covers. There wouldn’t
be time to use them in every case, but in many cases
there would.
An elegantly simple solution that other pilots flying
“actual” will want to consider.
A Monthly Safety Bulletin
from
The Office of the NASA
Aviation Safety Reporting
System,
P.O. Box 189,
Moffett Field, CA
94035-0189
http://asrs.arc.nasa.gov/
Number 252 June 2000
ASRS Recently Issued Alerts On…
A B737-300 rudder jamming incident
A potentially hazardous noise abatement procedure
Jet blast hazard at a major East Coast airport
Swearingen SX300 tire assembly failure during landing
Multiple runway incursion incidents at a Midwest airport
April 2000 Report Intake
Air Carrier / Air Taxi Pilots 2131
General Aviation Pilots 681
Controllers 92
Cabin/Mechanics/Military/Other 180
TOTAL 3084
Experimental Aircraft Notes
On July 26th the Experimental Aircraft Association (EAA)
will launch the “Air Venture Oshkosh 2000,” the nation’s
largest fly-in event held each year in Oshkosh, Wisconsin.
The EAA Oshkosh fly-in typically attracts about 2,800
participating aircraft, including homebuilts, antiques,
classics, warbirds, ultralights, and rotorcraft. Over 500
forums are conducted by aviation leaders, NASA
researchers, FAA personnel, aircraft designers, and a host of
others. There are also exhibits galore, daily air shows, and
many other attractions that make this a unique aviation
event.
As a tribute to Oshkosh 2000, CALLBACK presents excerpts
from several ASRS incident reports involving experimental
aircraft. We lead off with an incident that reminds us of a
clever caption used years ago by CALLBACK’s founding
Editor, Rex Hardy.
When Is a Door Not a Door?

This emergency situation occurred while at cruise, at
10,000 feet on an IFR flight plan. My wife, the only passenger
in our 2-seat experimental aircraft, noticed that the pilot side
gull-wing style door, was ajar. The latch was in the closed
position. The locking pin on the back side of the door was
extended but not engaged into the receiving hole in the plane.
The font locking pin was engaged. I attempted to fully close
the door. While attempting to close the door, the front locking
pin became disengaged, the door flew open and totally
departed the aircraft.
Although the aircraft is approved for flight without doors, the
pilot (I) feared that the tail section or a control surface may
have been damaged by the departing door. I declared an
emergency. Center instructed me to “close” [flight plan] on the
ground and say if there were any injuries.
The plane flew normally… to the airport and we landed
without any further problems. Immediately after landing I
contacted the local FSS, closed the flight plan, said that there
were no injuries and asked if they would contact Center and
tell them we were safely on the ground… In retrospect I
should have landed the plane before attempting to fully close
the door…
Gear-Up ’Gotchas
A number of gear-up landings reported to ASRS by pilots of
experimental aircraft involve a mechanical or electrical
problem, coupled with the pilot’s failure to use a beforelanding
checklist:

Landed with nosewheel retracted. Minor damage to
aircraft. Nosewheel up/warning for throttle to idle was
disabled due to electrical wiring problems. New aircraft (15
hours since completion) and new [experimental aircraft] pilot.
[I have now] established specific procedure to lower nosewheel
prior to turning base leg pattern.
The pilot of an experimental turbojet trainer describes how a
demo flight with a prospective buyer (the Pilot Flying in the
　
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