The plane came down despite no apparent mechanical problems during an internal flight in the Democratic Republic of Congo
It has now emerged that the crash was caused by the concealed reptile escaping and causing a stampede in the cabin, throwing the aircraft off-balance
A lone survivor apparently relayed the bizarre tale to investigators.
The crocodile survived the crash, only to be dispatched with a blow from a machete.
Danny Philemotte, the Dutch pilot and 62-year-old owner of the plane's operator, Filair, struggled in vain with the controls, with Chris Wilson, his 39-year-old First Officer from Shurdington, near Cheltenham, Glocs.
The plane was on a routine flight from the capital, Kinshasa, to the regional airport at Bandundu when the incident unfolded, on August 25.
It crashed into a house just a few hundred feet from its destination. The occupants of the property were outside at the time.
According to the inquiry report and the testimony of the only survivor, the crash happened because of a panic sparked by the escape of a crocodile hidden in a sports bag.