The recent spate of accidents in helicopter offshore oil operations has thrown safety research programs–many of which have long been under way–into the spotlight. The European Aviation Safety Agency (EASA) is working on improving the safety of offshore helicopter operations through research into satellite-guided approaches–which would rely on Egnos, Europe’s Waas counterpart–and, in case of ditching, a side-floating concept.
Instrument landing system
Yesterday at EAA AirVenture in Oshkosh, Wis., Garmin announced the new ADS-B-in GTS 800 and 820 traffic advisory systems (TAS) and GTS 850 TCAS. All three systems combine ADS-B and radar targets using Garmin’s Clear CAS technology. The GTS 800 offers 12-nm interrogation range and 40 Watts of transmit power and retails for $9,995; the GTS 820 ($19,995) and 850 ($23,495) deliver 250 Watts and 40-nm range.
The verdict has been in for a long time: a stabilized approach is an essential part of a safe landing.
The verdict has been in for a long time; stabilized approaches are an essential part of a safe landing.
Bombardier CL-600-2B19, Providence, R.I., Dec. 16, 2007–The NTSB determined the probable cause of the Air Wisconsin CRJ’s hard landing at Theodore Francis Green State Airport was the pilot’s attempt to salvage the landing from an instrument approach that exceeded stabilized approach criteria, resulting in a high sink rate, likely stall and hard landing that overtaxed the structural limitations of the airplane.
Eurocopter SA 365N-1D Dauphin, District Heights, Md., Sept. 27, 2008–The Maryland State Police medevac helicopter crashed in a park in District Heights, killing the commercial pilot, a paramedic, a field provider and one of the two patients aboard. The heli- copter had picked up the two auto accident victims and was flying them to a hospital.
Cessna 550 Citation Bravo, Kent, UK, Feb. 5, 2008–No one was injured when the Citation Bravo encountered wind shear on approach to Biggin Hill Airport. Airspeed fell below 100 knots and the autopilot pitched the nose up to maintain the glideslope. The right wing dropped in a stall but the ATP-rated pilot recovered and continued the approach. The aircraft bounced on landing.
Honeywell engineers are now developing a software upgrade for the AgustaWestland AW139 medium twin that optimizes the helicopter’s Primus Epic avionics system for the rigors of search-and-rescue operations.
BOMBARDIER CL-600-2B19 CRJ-100ER, BREST, FRANCE, JUNE 22, 2003–Air France Flight 5672 departed Nantes Atlantique Airport (NTE) in France at 11:15 p.m. with a planned destination of Brest-Guipavas Airport (BES). As the Canadair Regional Jet 100ER (F-GRJS) approached Brest, the crew was cleared for a Runway 26L approach. The aircraft was seen deviating to the left of the runway centerline and above and below the glideslope.
Switzerland has the notoriously difficult approach over the mountains into Lugano Airport. In England, it’s London City’s steep 5.5-degree glideslope to touchdown that can really test an aviator’s skills. And of course, the dead-end approach into Greenland’s Kangerlssaq Airport in the Sondrestrom Fjord can be a doozy when the weather turns bad.