A-88-103
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THAT THE FEDERAL AVIATION ADMINISTRATION: REQUIRE THE AIRCRAFT EVALUATION GROUP DURING THE TYPE CERTIFICATION PROCESS OF TURBOPROPELLER AIRPLANES TO REVIEW CAREFULLY THE DESIGN OF PROPELLER PITCH CONTROLS IN ORDER TO IDENTIFY AND ESTABLISH APPROPRIATE FLIGHTCREW TRAINING GUIDELINES AND EMPHASIS ON THE PROPER USE OF THESE CONTROLS TO PREVENT INADVERTENT OPERATION IN THE BETA MODE IN FLIGHT WHERE PROHIBITED BY THE AIRPLANE MANUFACTURER.
In plain language (FlightFinder summary)
The FAA is asked to require that the Aircraft Evaluation Group, during the type certification process for turbopropeller airplanes, review the design of propeller pitch controls to identify and establish appropriate flightcrew training guidelines, with emphasis on proper use to prevent inadvertent operation in the beta mode in flight where the manufacturer prohibits it.
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 - Acceptable Action |
|---|---|
| Mode | Aviation |
| Closed | Jul 23, 1991 |
| NTSB number | DCA87MA022 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).