AIRSHOW-FACTBOX-Civil aircraft orders at Paris Air Show

June 18 (Reuters) - Following is a summary of firm orders and commitments for planemakers during the first four days of the Paris Air Show.

As expected, orders have fallen sharply since last year as airlines struggle with lower traffic and tightened credit.

AIRBUS

Hungary-based low-cost carrier Wizz Air signed a letter of intent to buy 50 additional A320s worth around $3.8 billion. [ID:nLI898237]

Malaysian low-cost airline AirAsia (AIRA.KL) ordered 10 A350-900s worth $2.4 billion, with an option for five more worth $1.2 billion. [ID:nWEA7005]

Qatar Airways signed an order for 24 A320-family aircraft from Airbus (EAD.PA) worth about $1.9 billion at list prices. The contract includes four orders for A321 planes announced last year and 20 new orders for A320 aircraft. [ID:nLF470716]

Vietnam Airlines made a firm order for 16 A321s worth $1.4 billion and a provisional order for two A350-900s worth $480 million. [ID:nWEA6987]

Cebu Airlines of the Philippines ordered five Airbus A320s worth $385 at list prices. [ID:nMNB000416]

Zest Airways, also of the Philippines, placed a firm order for one A320 aircraft worth $77 million at list prices.

French private airline Aigle Azur placed a firm order for one A319 aircraft worth $70 million.

India's Paramount Airways signed a memorandum of understanding to buy 10 A321 aircraft.

Airbus said THY Turkish Airlines (THYAO.IS) had signed a preliminary agreement to buy seven Airbus A330 widebody aircraft -- two of the increased take-off weight version of the A330-200, which offers an extended flying range of up to 7,200 nautical miles, and five A330-300s.

THY said the same deal was for 10 aircraft, indicating there were 3 options, which Airbus does not publish.