A mechanical fault caused the ill-fated Dana Air flight 992 to crash in Lagos last month, killing 153 passengers on board and others on the ground, a preliminary report released by investigators has shown.

The report released by the Nigerian Accident Investigation Board, and cited in an AP report, showed that the engine on the MD83 aircraft developed more faults as the Lagos-bound plane neared the Murtala Mohammed Airport in the commercial city.

The pilots who had taken off with passengers from Abuja were reportedly seen in recordings saying, “we just lost everything”.

Following the deadly crash in the residential Iju Ishaga neighborhood on 3 June, aviation authorities at the time revealed that the pilots had called “may day” to the control room minutes before the passenger plane plummeted into a residential building just miles north of the airport.

There were reports that both engines on the aircraft failed before the crash.

Dana Air representatives have admitted to the failure of one engine, but dismiss allegations that both engines failed as “speculation”.