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...after the International Airline Passenger Association urged its members to avoid commuter aircraft with fewer than 31 seats -- planes the IAPA said have a "significantly higher" accident rate than larger craft. The smaller commuter planes do not have to meet some standards that apply to larger aircraft; the NTSB recommends that the Federal Aviation Administration tighten commuter pilots' training standards, cut the amount of time they can spend in the air and increase safety inspections.Post your opinion on theScience & Technologybulletin board...
Wake vortex began to emerge as the prime suspect early this month, after a Safety Board member told reporters that the NTSB was trying to determine the effect the bump had on Flight 427's controls and crew. Last week the board was more cautious. "This is an ongoing investigation," said spokesman Mike Benson. "No probable cause has emerged...
...such weights to maintain a separation of 3 nautical miles. If the 727 wake did jostle the 737 sufficiently to contribute to the latter's plunge, it would be a first. While 727s were the lead craft in seven of the 52 wake-vortex encounters documented by the NTSB from 1983 through 1993, all of those incidents -- some merely unsettling, some disastrous -- involved much lighter trailing aircraft...
...Safety Board's most recent warning about wake vortex, issued in February, concentrates on the turbulence stirred by the heavier 757, whose wake has upset or downed seven planes -- among them a 737. The NTSB called upon the FAA to reclassify the 757 so that other craft must follow at greater distances during takeoffs and landings. The FAA has yet to act. Canada, however, upped the classification of the 757 from "large" to "heavy" earlier this year; Britain made a similar change last year by carving out a new category to accommodate...
...pilots of a USAir jet that crashed Saturday in Charlotte, N.C., were warned of dangerous wind shear, federal investigators say. The National Transportation Safety Board unearthed that and other details in a search for why the DC-9 went down with 57 people on board, killing 37. The NTSB, which hasgathered testimony from five surviving flight crew members, planned to release more specifics this evening.parpar