Revision to Twin Commander AD creates flexibility

TwinCommander 2

CREEDMOOR, N.C. — Twin Commander has received FAA approval for a procedure that provides relief for some owners from the strict compliance requirements in AD 2013-09-05, which is based on Service Bulletin (SB) 241.

The revision to SB241 allows owners to perform an inspection of the aft pressure bulkhead area, and if the inspection does not reveal cracking, they will be able to resume flying for another 100 flights or 110 flight hours, whichever comes first. If cracking is found, the owner will need to complete the modifications detailed in SB241.

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Twin Commander debuts Rudder Pedal Seals

Twin Commander Aircraft has developed a kit that ensures good results in an area that can be difficult to protect from pressurization leaks — the rudder-pedal horns.

Leaks in the boots that enclose the rudder-pedal horns can result in noticeable loss of pressure differential, which means a higher cabin altitude at cruise, company officials explain. Twin Commander’s new rudder-pedal seal kit includes a plug for the rudder-pedal horns/brake valve arms and improved boots that help preserve cockpit and cabin pressurization.

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