A preliminary report released by the Accident Investigation Bureau (AIB) on Thursday eliminated the possibility of fuel contamination as the cause of the accident.
Thje report said the first indication of trouble emerged at about 3.41 p.m. when the first officer inquired of the captain “both engines coming up?” and the captain replied in the negative.
The report, signed by Capt. Muhtar Usman, the Commissioner and CEO of AIB, said: “during the period of 15:37 and 15:41 the flight crew engaged in pre-landing tasks, including deployment of the slats and extension of the flaps and landing gear.
“At 15:41:16, the first officer (FO) inquired, “both engines coming up?” and the captain (Capt) replied “negative.
“The flight crew subsequently discussed and agreed to declare an emergency. At 1542:10, Dana 992 radioed an emergency distress call indicating “dual engine failure . . . negative response from throttle.”
At 1542:35, the flight crew lowered the flaps further and continued with the approach and discussed landing alternatively on runway 18L.
“At 1542:45, the Capt reported the runway in sight and instructed the FO to raise the flaps up and 4 seconds later to raise the landing gear.
“At 1543:27 hours, the Capt informed the FO “we just lost everything, we lost an engine. I lost both engines”. During the next 25 seconds until the end of the CVR recording, the flight crew was attempting to restart the engines,’’ the report said.
The report further said that the airplane crashed in a residential area about 5.8 miles north of Lagos.
The report added that during “the impact sequence, the Dana plane struck an incomplete building, two trees and three buildings and the wreckage was confined, with the separated tail section and engines located at the beginning of the debris field.
According to the report, the fuelling records of the accident plane indicated that the airplane was uplifted with 8000 lbs of fuel before departure from Abuja.
“ The flight crew reported to ATC they had 26,000 lbs of total fuel. Preliminary analysis of fuel samples from the refuelling truck and the supply tank at ABV were negative for contamination
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