A-11-047
NTSB Safety Recommendation — Aviation
Recommendation text
TO THE FEDERAL AVIATION ADMINISTRATION: Once the simulator model fidelity requirements requested in Safety Recommendation A-11-46 are implemented, require that flight crews of all aircraft certificated for flight in icing conditions be trained in flight training simulators that meet these fidelity requirements. Such simulation training should emphasize the following: (1) cues for recognizing changes in the aircraft’s flight characteristics as airframe icing develops; (2) procedures for monitoring and maintaining appropriate airspeeds in icing conditions, including the use of icing airspeed reference indices; and (3) procedures for responding to decaying airspeed situations, stall protection system activation, and early stalls that can occur without stall protection system activation.
In plain language (FlightFinder summary)
The FAA is asked to require that flight crews of all aircraft certificated for flight in icing conditions be trained in flight simulators that meet the fidelity requirements requested in Safety Recommendation A-11-46, once those requirements are implemented. The training should emphasize recognizing changes in aircraft handling as ice builds up, maintaining airspeeds using icing reference indices, and responding to airspeed decay, stall protection system activations, and stalls that may occur without system activation.
This plain-language summary is written by FlightFinder to explain the recommendation above. It is not the official wording — the verbatim NTSB text is quoted above.
Details
| Status | Closed - Unacceptable Action |
|---|---|
| Mode | Aviation |
| Closed | Jan 5, 2022 |
| NTSB number | CEN09MA142 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).