Regulation 14 CFR 25.831(d) above appears to address the issue completely. Why can’t the pilot eliminate the smoke according to this regulation?
A. If the smoke is a one-time event, pilots can depressurize the aircraft and over time eliminate the smoke, but with difficulty (See [attachment]). However, once the pressure on the outside of the aircraft is equal to the inside, there is no method for eliminating the smoke if it continues. That is why “continuous” smoke is such a problem. Secondly, the regulation has not been interpreted to deal with continuous smoke. For example, former FAA administrator Thomas Richards stated that its purpose is to provide “an adequate view of the instruments and the outside world,” whereas former Deputy FAA Administrator Tony Broderick said that the FAA has “never applied the regulation to require that the pilots be able to see in conditions of dense smoke. . . .” Finally, the regulation only applies to the certification of new aircraft. Consequently, if the FAA interpreted the regulation to apply to continuous smoke, it would only apply to new certifications.
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- Regulation 14 CFR 25.831(d) above appears to address the issue completely. Why can’t the pilot eliminate the smoke according to this regulation?
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