Four passengers were injured during the evacuation of a plane which took place without the knowledge of its pilots, a report has stated.
The incident, which occurred on 15 February, last year at Glasgow airport, prompted an official investigation by the Air Accidents Investigation Branch (AAIB).
The study shows that a cabin crew member ordered passengers to leave the aircraft after "a pungent burning smell" had been detected on the Thomson Airways Boeing 757 from Madeira.
The emergency evacuation, which took place after normal disembarkation had started, led to four passengers suffering minor injuries. The injured parties collided with other passengers whilst using the emergency slides, and reported an "apparent lack of assistance" during the evacuation.
According to the report, the plane's senior cabin crew member (SCCM) had informed the captain of the burning smell "but did not convey her concerns on the need to evacuate passengers".
The AAIB added: "However, the flight crew were not incapacitated and it is evident that verbal communication with them would have been possible had the member of cabin crew persisted."
Glasgow airport has since reviewed and amended its accident and incident communications, and Thomson has reminded cabin crew about evacuation circumstances, the report said.
The suspect odour that caused the evacuation was also identified as an electrical burning smell coming from a re-circulation fan.