AO-1996-009A

Addendum to 96-009: The pilot-in-command of ZK-FMO submitted further information relating to this accident for consideration by the Commission. This information related to the effect of a misaligned contact breaker assembly arm in the dual magneto of the aircraft engine, the timing of amendments to the company operations manual, the interpretation of an instruction on the company's aircraft load sheet, the flap setting which he used for the take-off and the distribution of the load in the aircraft.

The review of this new information, by a Commission Assessor and Senior Inspector of Air Accidents who were not involved in the investigation of this accident, found that the additional information submitted by the pilot warranted amendments to the Commission's reference to each of these areas in its Aircraft Accident Report 96-009. These addenda are discussed and detailed herein.

The Commission's opinion as to the causal factors involved in this accident was not altered significantly by the review of the information submitted but the Commission recognised that a possibility existed that some reduction in engine power during the take-off and attempted climb may have been the final event which reduced the already eroded performance margins of the aircraft to the extent that the accident was inevitable.