A-18-005
NTSB Safety Recommendation — Aviation
Recommendation text
TO THE FEDERAL AVIATION ADMINISTRATION: Revise Advisory Circular (AC) 20-128A, “Design Considerations for Minimizing Hazards Caused by Uncontained Turbine Engine and Auxiliary Power Unit Rotor Failure,” based on an analysis of uncontained engine failure data since the time that the AC was issued, to minimize hazards to an airplane and its occupants if an uncontained engine failure were to occur. The revised AC should include modifications to the accepted design precautions for fuel tanks given the fires that have occurred after uncontained engine failures.
In plain language (FlightFinder summary)
The Federal Aviation Administration is asked to update its Advisory Circular (AC) 20-128A on minimizing hazards from uncontained engine or auxiliary power unit rotor failures, using analysis of failure data collected since the original AC was issued. The revision should modify fuel tank design precautions, given fires that have occurred after such failures.
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 | DCA17FA021 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).