Source: Simon Hradecky | www.avherald.com

A MAP Linhas Aereas Avions de Transport Regional ATR-72-200, registration PR-MPY performing a flight from Manaus,AM to Tupinambaran,AM (Brazil), was climbing out of Manaus when smoke developed on board. The crew returned to Manaus for a safe landing, the passengers rapidly deplaned. Smoke exited the open doors.

The airline reported the smoke emanated from one of the air conditioning systems.