Electrical engineering

April 2, 2008 - 11:21am

Cessna 650 Citation III, Madison, Wis., Oct. 9, 2005–The inadequate design of the engine’s interstage transition duct yielded after the low pressure turbine (LPT) stage-3 blades had separated and allowed the uncontained release of turbine debris, according to the NTSB. A contributing factor was the separation of a turbine blade.

February 18, 2008 - 5:42am

REB Technologies (Rebtech), Booth No. 4035, is modifying eight Bell helicopters with night-vision-goggle- compatible lighting systems for Med Trans of Lewisville, Texas. The Bedford, Texas-based specialist in night-vision lighting for civil and military aircraft is upgrading the interior lighting of a Bell 206-L1 and seven 407s in a program scheduled for completion next month.

February 11, 2008 - 8:58am

Bental Industries has introduced a new member of its family of rotary servo actuators. The RSA-06 unit delivers up to 9.6 pounds per foot of torque at a stroke of +/- 45 degrees. The Israeli group’s RSA actuators are used for functions such as flap controls on small unmanned aerial vehicles. They provide an extremely low power-to-weight/size ratio.

October 12, 2007 - 10:32am

Picture Kodak, king of silver-oxide-and-celluloid photography forever, confronting the age of the digital image, and you can imagine the turmoil, upheaval and forced reinvention that have assaulted the Rochester, N.Y.-based film and processing giant in recent years. These have not been easy times for traditional “memories capsules” packaged in little yellow boxes.

October 10, 2007 - 8:37am

The Brazilian Departamento de Aviacao Civil (DAC) recently awarded Duncan Aviation’s Battle Creek, Mich. facility repair station certification. The certificate allows the company to work on aircraft registered in Brazil. Duncan Aviation Battle Creek also has approvals from Europe’s JAA and Venezuela. Duncan Aviation’s Lincoln, Neb., facility has approvals from Brazil, Bermuda, Venezuela, Argentina, Saudi Arabia, China and the JAA.

October 8, 2007 - 7:55am

TDG Aerospace has introduced the Universal Fault Interrupter (UFI 3000), designed to prevent ignition sources resulting from arcing events in aircraft electrical systems.

September 27, 2007 - 6:10am

A Petroleum Helicopters Bell 407 ditched into the Gulf of Mexico on August 16 after an apparent catastrophic engine failure. The pilot and a sole passenger escaped without injury after autorotating and deploying pop-out floats. The wreckage was recovered and a subsequent NTSB examination revealed “an uncontained engine failure near the third-stage turbine wheel” followed by the failure of the first-stage turbine wheel.

September 20, 2007 - 10:00am

When Honeywell announced at last year’s NBAA Convention in Orlando its intention to build the HTF10000, a 10,000-pound-thrust turbofan engine for super-midsize to large business jets, its Tech 7000 engine demonstrator was in test with a variety of technologies running.

July 6, 2007 - 5:49am

Cessna 208B Caravan, Globe, Ariz., July 22, 2005–The NTSB determined that the probable cause of the crash of Caravan N717BT was the fatigue failure of the compressor turbine stator vane, the liberation of vane material into the compressor turbine (damaging the turbine blades downstream) and the total loss of engine power.

March 16, 2007 - 10:37am

A newly designed circuit board is now available for Citation 525 and a few Citation 560 operators that have been required since late last year to disengage their pitch trim and autopilot servo circuit breakers to prevent a possible runaway trim. The FAA has proposed mandatory replacement of the breakers, installation of which is covered under warranty for the Model 525.

 
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