A-19-020
NTSB Safety Recommendation — Aviation
Recommendation text
TO THE FEDERAL AVIATION ADMINISTRATION: Expand the Title 14 Code of Federal Regulations Part 25 and 33 certification requirements to mandate that airplane and engine manufacturers work collaboratively to (1) analyze all critical fan blade impact locations for all engine operating conditions, the resulting fan blade fragmentation, and the effects of the fan-blade-out-generated loads on the nacelle structure and (2) develop a method to ensure that the analysis findings are fully accounted for in the design of the nacelle structure and its components.
In plain language (FlightFinder summary)
The FAA is asked to expand certification requirements under Title 14 CFR Parts 25 and 33. This would mandate that airplane and engine manufacturers work together to analyze all critical fan blade impact scenarios and their effects on the nacelle structure, and to develop a method ensuring these findings are incorporated into nacelle design.
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 | Open - Acceptable Response |
|---|---|
| Mode | Aviation |
| Closed | — |
| NTSB number | DCA18MA142 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).