Loran advocates believe they are on a roll. A number of events that transpired so far this year, coupled with a government report on loran due soon, have boosted their confidence that this could be the year when their system finally gains its long-due recognition.
Embraer E170, Cleveland, Ohio, Feb. 18, 2007–The Shuttle America Embraer was substantially damaged when it hit a localizer antenna and a fence after overrunning snow-covered Runway 28 when landing at Cleveland Hopkins International Airport. The 74 people on board, including the captain, first officer and two flight attendants, were not injured.
Alternative Avionics in Waterford, Mich., has gained an STC for installation of upgraded air-data computers and pitot-static probes in the Hawker 700, a modification that the company said provides a pathway to RVSM approval while also improving autopilot functionality.
CESSNA 425 CONQUEST I, SAN JOSE, CALIF., MARCH 6, 2002–The NTSB concluded that the in-flight breakup of Conquest N444JV was caused “by the pilot’s loss of control, which resulted in exceeding of the design stress limits of the aircraft, leading to an in-flight structural failure.” The loss of control was blamed on the loss of primary airspeed reference resulting from pitot tube icing, caused by the internal failure of the pitot heat switch.
Mid-Canada Mod Center (MC2) provides avionics sales, service, installation and integration for private, corporate and commercial aviation. Located at Lester B. Pearson International Airport, Toronto, the firm specializes in TCAS, EGPWS, TAWS and RVSM as well as other types of airborne communication, cabin entertainment systems and applications.
Elliott Aviation of Moline, Ill., has received an FAA STC RVSM group approval for the Beechjet 400 and MU-300 Diamond. The RVSM solution uses the Beechjet/Diamond’s native Honeywell avionics suite. A Honeywell AZ-252 advanced air-data computer, AM-250 barometric altimeter, BA-250 barometric altimeter display and AL-800 altitude preselector/alerter replace the existing non-compliant Honeywell air data/altimetry.
An AD for the Landmark 8000 terrain awareness and warning system (TAWS), manufactured by L-3 Communications Avionics Systems, corrects potential altitude errors. Technicians uncovered the problem after connecting a Landmark TAWS to the baro set voltage divider in a Citation 500 through its Honeywell BA-141 altimeter and AZ-241 air-data computer.
Buoyed by strong sales of its RVSM cockpit equipment to airlines and business aircraft operators, Exton, Pa.-based Innovative Solutions & Support (IS&S) this year looks on pace to post record revenue and profits. While that’s certainly good news for the upstart avionics maker, it doesn’t mean that it is too soon to start questioning what the company will do for an encore.
Scientists and engineers at NASA’s Langley, Va., Research Center are evaluating the integration of a number of separate systems and techniques which, when combined, could achieve significant safety improvements in the approach and landing phase.
The GPS approach is out, and the Rnav approach is in. That’s because many pilots tend to think of GPS as a land-based navaid like a VOR, NDB or as a part of an ILS, and experts believe that thinking is misleading. More precisely, it’s the FMS in the airplane that allows the actual instrument approach to be flown.