Controls:

Ag1 - Arm Speed brakes (requires gear down)
Ag2-4 - Strobe/Landing/Cabin Lights
Ag5 - Open front left door (Requires not moving)
AG6 - Pushback

You can startup realistically, just look up some tutorial.

About A320

The Airbus A320 family is a series of narrow-body airliners developed and produced by Airbus. The A320 was launched in March 1984, first flew on 22 February 1987, and was introduced in April 1988 by Air France. The first member of the family was followed by the longer A321 (first delivered in January 1994), the shorter A319 (April 1996), and the even shorter A318 (July 2003). Final assembly takes place in Toulouse in France; Hamburg in Germany; Tianjin in China since 2009; and in Mobile, Alabama in the United States since April 2016.

About Armavia:

Armavia (Armenian: ???????) was an airline that existed between 1996 and 2013. It was Armenia's flag carrier, with its head office on the grounds of Zvartnots International Airport in Zvartnots, Armenia, near Yerevan. It operated international passenger services from Yerevan to destinations in Europe and Asia. Its main base was Zvartnots International Airport.

About Armavia Flight 967:

Armavia Flight 967 (U8 967/RNV 967) was a scheduled international passenger flight operated by Armavia from Zvartnots International Airport, Zvarnots in Armenia to Sochi, a Black Sea coastal resort city in Russia. On 3 May 2006, the aircraft operating the route, an Airbus A320-200, crashed into the sea while attempting a go-around following its first approach to Sochi airport; all 113 aboard were killed. The accident was the first major commercial airline crash in 2006. It was Armavia's first and only fatal crash.