EASA.2012.OP.09 | EASA
The Final Recommendations suggest measures to improve the suitability of single-engined
helicopters for Commercial Air Transport operations according to all previous analysis, especially the
Safety Risk Assessment.
First recommendations are referred to JAR-OPS 3.005(e) approvals. JAR-OPS 3.005(e) and the successor rule, CAT.POL.H.420, allow an exception to the rule for Commercial Air Transport operation of turbine single-engined helicopters to be conducted only along such routes or within such areas for which surfaces
are available which permit a safe forced landing.
The safety level to be maintained in these operations is
expressed as an engine failure rate being better than 1x10-5per flight hour.
The results of this study indicate that, whereas the rate for turbine-engined helicopters is significantly better at 0,36x10-5
per flight hour, the rate for piston-engined at 0,89x10-5
per flight hour is a factor of 2,5 higher and closer to the limit of 1x10-5 per flight hour.
It is therefore recommended to:
retain the alleviation, but not to expand it to piston-engined helicopters; and
take the adequate steps to ensure that all states apply the same standards in the same manner, ultimately when Implementing Rule 965/2012 takes effect on 28 October 2014, as a number of EASA member States appear to vary with the JAR-OPS standards.
The assess of limitation in seat capacity according to the Maximum Operational Passenger Seating Configuration (MOPSC) have concluded the recommendation to retain the limit of 6 passengers.
No more robbie ?!
