A coding error has sent departing flights from Sydney Airport over angry eastern suburbs residents until the end of November.

Planes taking off north from Mascot’s third runway are being sent over Coogee, Randwick and Kingsford rather than the usual flight path further south over Maroubra, Eastgardens and Pagewood.

Sydney Airport changes: The temporarily suspended flight path, left, and the current situation. Credit:Airservices Australia

Airservices Australia, the government-owned corporation responsible for aviation safety, said the problem was caused by a third party provider’s coding of flight path data into aircraft flight management systems. It said air traffic controllers would direct planes individually for take off while it undertakes “an investigation into the safety implications”.

“Airservices Australia is working with the third-party provider and airlines to identify and address the safety issues as quickly as possible to allow the flight path to be reinstated. It is expected this will not be completed until late November,” the corporation told local residents.