During 1977–1981 Błasik was educated at Aviation High School at the University Officers' School of Aviation in Dęblin. Afterwards he joined the 'School of Eaglets', gaining in 1985 the military rank of second lieutenant[3] in the group of pilots of the passenger aviation corps.
At the first grade – a pilot – he was sent to 8 Regiment Fighter-Bomber in Mirosławiec. In 1987 he was transferred to 40 Regiment Fighter-Bomber in Świdwin, where he was a senior pilot, commander of a key officer of the squadron navigator, squadron commander and deputy commander of the squadron. Since 1995, he served in the Air Force Command, Air Force and Air Defense in Warsaw. He was successively chief inspector duties Navigation Division, Senior Inspector Department of Training and Operations Branch chief specialist.
In 2001 he became Head of Training 2 Tactical Air Brigade in Poznań, and in 2002 became commander of the 31st Air Base in Poznań. He commanded a military unit in 2003 received the "Mark of Honour of the Polish Armed Forces" for the protection of international maneuvers in "NATO Air Meet 2003". Since 2004, he was head of the Combat Applications Division at Headquarters Air Force, while in 2005–2007 he commanded the 2nd Tactical Air Brigade. On 15 August 2005 he was promoted to brigadier general. After a short time, he served as commander-rector of the School Officers of the Air Force. On 19 April 2007 he was appointed commander of the Air Force and was promoted to major general.
On 15 August 2007 he was promoted to the rank of lieutenant general.
As a pilot he had 1,300 hours total flying time. As an instructor he had the power to train in all weather conditions on airplanes Su-22 and PZL TS-11 Iskra. He also piloted the Lim-6.
^(in Polish) Gen. dyw. Andrzej Błasik nowym Dowódcą Sił Powietrznych [online], Ministerstwo Obrony Narodowej, 19 kwietnia 2007 [dostęp 2007-04-24] [zarchiwizowane z adresu 2014-08-12].
^(in Polish) Uroczystość wręczenia Medali 100-lecia ustanowienia Sztabu Generalnego Wojska Polskiego - Urząd do Spraw Kombatantów i Osób Represjonowanych [online], www.kombatanci.gov.pl [dostęp 2023-10-12].