Why, when the safety record of professionally flown turbine twins is so impressive, did four business aircraft experience fatal accidents during a five-week period late last year? Three were fan-powered–a Learjet 35A, a Gulfstream III and a Challenger 601–and one was a King Air 200. There was a highly qualified two-person crew at the controls of each aircraft. Three of the four airplanes were operating in accordance with Part 91.
Instrument landing system
Under an FAA cost-cutting proposal, certain ILS approaches, localizer-type directional aids, microwave landing systems and nondirectional beacons at some 25 U.S. airports would no longer be monitored by ATC or FSS due to their low annual activity or because they are not authorized for alternate airport filing when the control tower is closed. It will therefore be up to pilots to report signal discrepancies to the FAA.
At the FAA’s two-day New Technology Workshop last month, the focus was sharply on the Next Generation Air Transportation System (NGATS). The key enablers to get there, according to Nick Sabatini, FAA associate administrator for aviation safety, will be “performance-based” navigation and Internet-like access to critical information such as near real-time weather.
The probable cause of the Nov. 22, 2004 crash of a Gulfstream III during an attempted ILS Runway 4 approach to William P. Hobby Airport in Houston, according to the NTSB, “was the flight crew’s failure to adequately monitor and cross-check the flight instruments during the approach.
Boeing’s delivery in May of a 737-800 airliner certified for the global navigation satellite landing system (GLS) marked the culmination of a 10-year development effort. It also served as a reminder that the ground-based augmentation system (GBAS) still has a future, despite a U.S.
The NTSB’s analysis of the Nov. 22, 2004, crash of a Business Jet Services Gulfstream III suggests that the pilots might have followed the fast/slow indicator on the left side of their EADIs instead of the glideslope on the right. On the way to pick up former President George H.W. Bush, the aircraft crashed into a light pole more than three miles southwest of Houston’s Hobby Airport while attempting to shoot the ILS Runway 4 approach.
The NTSB released its final report on the Nov. 22, 2004 crash of a Gulfstream III in Houston that killed three crewmembers. The jet, operated by Business Jet Services, was on its way to pick up former President George H.W. Bush. The jet struck a light pole and crashed about three miles southwest of Hobby Airport while on the ILS approach to Runway 4.
Encouraged by feedback from operators, the Flight Safety Foundation is extending its corporate flight-operations quality-assurance (C-FOQA) program, despite a “painfully slow start.” The initial phase began late last year, involving three aircraft–two Gulfstream IVs and a Dassault Falcon 900–and two operators.
Cessna 425 Conquest I, Lone Tree, Colo., Aug. 13, 2005–The NTSB determined that the cause of the accident was the pilot’s failure to properly execute the published instrument approach procedure.
Mitsubishi MU-2B-60, Parker, Colo., Aug. 4, 2005–Making an instrument approach to Centennial Airport, near Denver, MU-2 N454MA crashed in night instrument conditions. The instrument-rated commercial pilot, the sole occupant, was killed and the airplane, registered to and operated by Flight Line of Watkins, Colo., was destroyed. The cargo flight was on an instrument flight plan from Salt Lake City.