A-79-099
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: INSURE THAT THE DESIGN OF TRANSPORT CATEGORY AIRCRAFT PROVIDES POSITIVE PROTECTION AGAINST ASYMMETRY OF LIFT DEVICES DURING CRITICAL PHASES OF FLIGHT; OR, IF CERTIFICATION IS BASED UPON DEMONSTRATED CONTROLLABILITY OF THE AIRCRAFT UNDER CONDITION OF ASYMMETRY, INSURE THAT ASYMMETRIC WARNING SYSTEMS, STALL WARNING SYSTEMS, OR OTHER CRITICAL SYSTEMS NEEDED TO PROVIDE THE PILOT WITH INFORMATION ESSENTIAL TO SAFE FLIGHT ARE COMPLETELY REDUNDANT.
In plain language (FlightFinder summary)
The Federal Aviation Administration is asked to ensure that transport category aircraft designs include positive protection against asymmetrical lift devices during critical flight phases. Alternatively, if certification relies on demonstrated controllability under such asymmetry, the FAA must ensure that asymmetric warning systems, stall warning systems, and other critical systems providing essential flight information to pilots are fully redundant.
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 | Dec 20, 1988 |
| NTSB number | DCA79AA017 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).