The aim of the study was to analyze airway endoscopic view in potential donors and definition of donor lung eligibility criteria for transplantation. One of foundational diagnostic modality is fibrotracheobronchoscopy (FTBS). FTBS allows examining tracheal and bronchial lumen, its mucous membrane, variants of anatomical growth and presence of traumatic and postintubation injuries. Evaluation of eligibility criteria of 36 donor lungs has been carried out in the Department of Urgent Endoscopy from May 2011 to April 2012. During the initial endoscopy the most common findings were: aspiration of blood in 14 (39%) patients, purulent tracheobronchitis - in 7 (19%) patients and profuse submucous hemorrhages due to lung trauma - in 5 (14%) patients. In 5 (14%) potential donors massive aspiration of gastric contents was revealed that is absolute contraindication to lung transplantation. In 5 (14%) donors no pathologic changes were discovered. Our experience showed that endoscopic evaluation of lung transplant eligibility is only the first link in the chain of potential lung donors group formation. Absolute contraindications were revealed as early as during the primary investigation in 14% of donors. 26 potential donors who had relative contraindications to transplantation appeared to have absolute contraindications revealed during intraoperative revision. Only 14% of donor lungs were classified fit for transplantation. Results obtained due to endoscopic evaluation of donor lungs turned out to be associated with international practice.