It is difficult to believe that the Federal Aviation Administration has remained silent on smoke in the cockpit. Hasn’t it said anything about this problem?
A. Yes. It issued an Advisory Circular, (AC) No. 25-9A, entitled “Smoke Detection, Penetration and Evacuation Tests and Related Flight Manual Emergency Procedures.” The AC is designed to explain how airline manufacturers can comply with Federal Aviation Regulation (FAR) 25.831(d), the cockpit smoke regulation. Its three weaknesses are that it (1) permits three (3) minutes to evacuate the smoke, (which would not have helped ValuJet 592), (2) it mandates that the applicant for certification turn off the smoke, a demonstrably unrealistic requirement, and (3) it does not apply to any current aircraft.
Related Questions
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