IL76, St John's Newfoundland Canada, 2012

IL76, St John's Newfoundland Canada, 2012

Summary

On 13 August 2012, an Ilyushin IL76 freighter overran landing runway 11 at St John's at 40 knots. The Investigation established that although a stabilised approach had been flown, the aircraft had been allowed to float in the presence of a significant tail wind component and had not finally touched down until half way along the 2590 metre long runway. It was also found that reverse thrust had then not been fully utilised and that cross connection of the brake lines had meant that the anti skid pressure release system worked in reverse sense, thus reducing braking effectiveness.

Description

On 13 August 2012, an Ilyushin IL76TD-90VD Freighter (RA-76511) being operated by Volga-Dnepr Airlines on a scheduled cargo flight (4118) from Prestwick UK to St John's Newfoundland made a deep landing at destination before overrunning the runway and travelling a further 195 metres before coming to a stop. The aircraft was undamaged except for cuts to some tyres resulting from impact with threshold lights when departing the runway and was steered so as to avoid hitting approach lighting installed for the opposite direction use of the runway.

Investigation

An Investigation was carried out by the Canadian TSB. Recorded data relevant to the Investigation was recovered from the aircraft Flight Data Recorder (FDR) and Cockpit Voice Recorder (CVR), the CB for the latter having been tripped by the crew once the aircraft had come to a stop.

It was established that, prior to the approach, the crew had copied ATIS 'H' which had given the weather as W/V 170°/3 knots, visibility 1½ sm in mist and ceiling overcast at 300 feet agl. They had decided that with an ELW of 140 tonnes and noting that runway 11 was the longest available runway, an ILS approach to that runway would be made. AFM data was used to calculate a required landing distance of 1240 metres (including a stopping distance of 825 metres) and an approach speed of 130 KIAS, increased to 135 KIAS "to account for turbulence and icing".

The full content of this page is available to registered users only.
Please Log in or Register

SKYbrary Partners:

Safety knowledge contributed by: