B738, Yerevan Armenia, 2021

B738, Yerevan Armenia, 2021

Summary

On 23 July 2021, the takeoff roll of a Boeing 737-800 making an intersection departure from Yerevan on a non revenue positioning flight using reduced thrust in daylight exceeded the length of runway available by 81 metres but was undamaged and completed its intended flight. The Investigation found that the Onboard Performance Tool when preparing for departure had been wrongly configured but that when the crew realised there was insufficient runway length left to reject the takeoff, the thrust had not been increased and the response had been the commencement of a slow rotation 20 knots before the appropriate speed.

Description

On 23 July 2021, a Boeing 737-800 (VT-SZM) being operated by SpiceJet on a non revenue positioning flight from Yerevan to Delhi as SG9029 was making a reduced thrust intersection departure from runway 09 in day VMC and an air temperature of 30° in calm conditions when it exceeded the available runway length ahead and despite commencing a premature rotation did not become airborne until about 80 metres beyond the end of the runway. There was no damage to the aircraft or to ground installations. 

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