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1. 06:57 PM - Gull Wing Doors - Liberty XL-2 (Galin Hernandez)
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| Subject: | Gull Wing Doors - Liberty XL-2 |
This was on the AOPA web page:
http://www.aopa.org/aircraft/articles/2010/100218liberty.html
FAA provides information on Liberty door problems
By Alton K. Marsh
Liberty Aerospace <http://www.libertyaircraft.com/> has come up with a
solution for a problem with doors on its two-seat XL-2 aircraft that may po
p
open in flight. The FAA said it is =93not an unsafe condition that would
warrant airworthiness directive action.=94
The FAA released a special airworthiness information
bulletin<http://rgl.faa.gov/Regulatory_and_Guidance_Library%5CrgSAIB.nsf/%2
8LookupSAIBs%29/CE-10-16?OpenDocument>explaining
that =93there have been six occurrences of a door opening in flight
on Liberty XL-2 airplanes.* In all six cases, the pilot has been able to
land the airplane safely and there is evidence the door was not properly
latched before takeoff.=94*
*The two-passenger/crew entrance doors on the XL-2 are gull-wing type doors
with hinges on the top edge of the doors. If a door is not properly closed
and latched prior to flight, the air flow during flight could cause the doo
r
to open. The open door could separate from the airplane and could cause
damage to the airplane empennage or injure someone on the ground.*
Liberty Aerospace issued Service Bulletin SB-09-003 on Dec. 15, 2009, to
provide a new rear tapered door pin for each door and to publish airplane
flight manual revisions. The new door pin allows the door to be more easily
latched. The flight manual revisions include additional notes and warnings
in the checklists for the pilot to check the engagement of both the front
and rear door pins before takeoff.
The FAA =93recommended=94 that owners follow the advice in the service bull
etin.
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