Aviation Safety and Pilot Control Understanding and Preventing Unfavorable Pilot-Vehicle Interactions (1997) / Chapter Skim
Currently Skimming:
Pages 81-87
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From page 81... ...
3Aircraft-Pilot Coupling as a Current Problem in Aviation As one aspect of the charge to evaluate the current state of knowledge about adverse APC, the committee was asked to "review and assess recent incidents and accidents in which adverse APC is known or suspected." For several reasons, this has not been a straightforward task for all stages of aviation, and unequivocal answers have been hard to find. For developmental aircraft, the use of elaborate flight test data recorders usually ensures that APC events become a matter of record.
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TRENDS FROM A REVIEW OF ACCIDENTS AND INCIDENTS To review and assess recent incidents and accidents, the committee approached the problem over a broad front. This review was the focus of two workshops held to gather the best information available (see Appendix C for participants)
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3. Once an APC event is discovered in the development stage, it becomes highly visible.
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systems. Most currently available FDR systems do not sample at rates sufficient to allow investigation of high-frequency, oscillatory APC events.
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In addition to FDRs, other recorders are also available, and many individual operators have installed them voluntarily in their aircraft. These recorders, known as quick access recorders (QARs)
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aircraft. Depending upon the limitations, the costs could be quite high for an entire fleet.
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From page 87... ...
ACCIDENT INVESTIGATIONS In the past, PIO phenomena have not generally been recognized as a potential cause of accidents involving commercial aircraft in service. Although the data collected by FDRs on commercial aircraft have been adequate to identify flight path oscillations, for the most part these data have not been adequate to determine definitively if APC caused the oscillations or if the accidents involved APC phenomena.
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