The Duncan Intelligence is a free, technical newsletter for business aircraft owners and operators. Written in-house by Duncan Aviation's technical representatives, each edition includes technical tips and advice on topics and trends in business aviation. It is a free, monthly e-mail subscription for aviation enthusiasts around the world.
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If your aircraft will be sitting idle for longer than normal, we recommend you take extra steps to keep your engines in working condition and minimize the potential for deterioration. Engine preservation is critical during times of long-term storage, with some unfortunate effects when procedures are not followed.
Hydrostatic testing is often required at certain intervals for Aircraft Oxygen Cylinders, Fire Extinguishers and Pneumatic Bottles. The interval at which these are due and what is to be done is sometimes confusing. It’s not only important to know when these are due but also what is to be done.
It is crucial to follow recommended best practices during aircraft tire storage to prevent tire distortion.
Duncan Aviation’s flight operations have a list of things done regularly that could be considered preventative maintenance. Most of the items are service-related, but many AOG situations are prevented by doing them.
GE is recommending the replacement of the fuel valve thrust bushing be complied with as soon as possible before the fuel control has accumulated 10,000 hours.
A number of KHF-950 HF components have been squawked as being stuck in transmit mode, or the frequency is changing on the controller every time a transmit is attempted. However, there were no faults found with the suspected units.
The glow-in-the-dark Tritium "EXIT" signs that may be installed in Falcon aircraft are being phased out due to the emission of low levels of radiation. These emissions have been deemed sensitive to some local regulations.
Extreme temperatures affect the accuracy of the Air Data Computer altitude display. With WAAS / LPV approaches, this is no longer a factor.
November 3, 2012, is the date that operators are required to be in compliance of AD 2010-07-02. It addresses possible erroneous glide slope or localizer display indications.
General Electric Service Bulletin (SB) CF34-72-0252 replaces the #5 bearing that was introduced on newer production engines, starting with engine S/N 950333, or with the incorporation of SB 72-0176.
Insects on the windshield can be dealt with, but in the pitot static system they can be truly maddening. Bugs, like birds, can build a nest overnight.
It was determined that the epoxy ramp installed to prevent water accumulation could deteriorate with time. A dry ice blasting machine removes the epoxy ramp efficiently without collateral damage.
TCAS 7.1 is being offered as an upgrade by all of the major TCAS manufacturers and makes two important safety enhancements.
Now, through a Securaplane STC, Citation 500, 550 and 560 operators are able to enjoy the benefits of the thin plate, pure lead (TPPL) technology that improves discharge and recharge capacity.