Twin Commander Aircraft has developed a pressurization leak kit for rudder-pedal horns. Leaks in the boots that enclose the rudder-pedal horns can result in a noticeable loss of pressure differential, meaning a higher cabin altitude at cruise. 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 cabin pressurization.
The FAA is proposing to rescind an Airworthiness Directive (AD 200-07-11) issued for all Piaggio Avantis to prevent the brake hydraulic fluid from leaking. It was prompted by reports of brake assembly rods contacting the brake valve tubing, which could compromise the airplane’s ability to stop during ground operations. Since then the FAA has determined it is no longer an unsafe condition and that regularly scheduled annual inspections address the subject. The FAA is taking comments until September 4.
Canyon Engineering Products (Hall 4 Stand F7) has developed a line of dual- or multiple-port manual rotary-select valves that enable aircraft operators to isolate hydraulic pressure, at up to 5,000 psi, from specific systems to permit aircraft ground maintenance. The company’s rudder isolation valve, operating with 7.92 U.S. gallons per minute flow rate at up to 7.25 psi differential pressure, has an overall weight of 1.05 pounds, while another product is a three-port, two-position valve to isolate nosewheel door actuators for servicing.
Jeff Bonner has roots in the aircraft MRO and completion/refurbishment businesses that go all the way back to Dee Howard Company of San Antonio, Texas, where Bonner was head of research and development.
Sunaero is here at the Farnborough show (Hall 1 Stand A15) promoting its quick-repair equipment and services for repair of fuel leaks in military and civil aircraft. The trend in this area is toward smaller, more portable hardware, a spokesman said. The French company is also developing a new solution for composite material repair, he noted.
BEECH 1900D, ROCHESTER, N.Y., JUNE 3, 2000–The Safety Board determined probable cause for a gear-up landing by a CommutAir Beech 1900D during a regularly scheduled flight. According to the NTSB, “The reversal of landing gear hydraulic lines by company maintenance personnel [caused the failure].
Driessen Aerospace has introduced a new “hot cup” designed originally for the Boeing 787 galley. The cup brings about three pints of water to a boil in five to seven minutes, using induction technology. The Netherlands-based galley equipment specialist suggests using the boiler for everything from simple hot water to boiling eggs to heating baby food. The pot itself can be removed and carried throughout the aircraft for service.
With an established reputation in the field of on-board water treatment for aircraft, International Water-Guard of Burnaby, British Columbia, has launched a program to develop a components line that includes the “pumps, valves and heaters that make up a complete water system.” According to IWG president and CEO David Fox, “Distributed device control is the way of the future, [and] IWG will be able to provide both system components and control
Ship It AOG (Booth No. 2848) has signed an agreement with Circle Seal Controls to be the exclusive distributor of the company’s line of business jet wheel pressure gauges and relief valves.
MD 600N, Vicksburg, Miss., Feb. 6, 2007–The NTSB said the loss of engine power on the MD 600, which landed hard on a logging road, was due to fuel starvation because the fuel transfer check valve was stuck in the closed position. The pilot was en route to refuel the helicopter, cruising at 115 knots at 500 feet agl, when the engine quit. The pilot autorotated and landed on the road, surrounded by tall trees.
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