Nigeria has suspended the licence of the airline involved in Sunday's crash, in which 96 people were killed.
ADC's Boeing 737 passenger jet came down almost immediately after take-off from the capital, Abuja, on a flight to the northern city of Sokoto.
Among the dead was the spiritual leader of Nigeria's Muslims, the Sultan of Sokoto. Nine people are reported to have survived the crash.
This is Nigeria's third major civilian air disaster in less than a year.
ADC is one of Nigeria's most popular private airlines.
Three days of national mourning have been announced for the victims.
President Olusegun Obasanjo said he was "deeply and profoundly shocked and saddened" and immediately ordered an inquiry.
He sympathised with "all Nigerians, especially family, friends and associates of those who may have been on board".