A-06-074
NTSB Safety Recommendation — Aviation
Recommendation text
TO THE FEDERAL AVIATION ADMINISTRATION: For those airplanes with engines that are found to be susceptible to core lock (other than the CF34-1 and CF34-3, which are addressed in Safety Recommendation A-06-71), require airplane manufacturers to incorporate information into airplane flight manuals that clearly states the potential for core lock; the procedures, including the minimum airspeed required, to prevent this condition from occurring after a sudden engine shutdown; and the resulting loss of in-flight restart capability if this condition were to occur.
In plain language (FlightFinder summary)
The FAA is asked to require airplane manufacturers to update flight manuals for certain engine types (excluding CF34-1 and CF34-3) with information about core lock. The manuals must warn of the risk, specify procedures to prevent core lock after a sudden shutdown—including minimum airspeed—and explain that in-flight restart capability would be lost if core lock occurs.
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 | Apr 2, 2014 |
| NTSB number | DCA05MA003 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).