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The beginning of the An-148 project dates to the early 1990s, when work on the Antonov An-74 passenger modification started, headed by Petro Balabuev. In 2001, the project was renamed An-148. The An-74 fuselage was extended and the new aircraft's wing design was created from scratch. The developers initially used Motor Sich D-436-148
The aircraft involved was a twinjet Antonov An-148-100E, c/n 41-03, carrying test registration 61708. [6] It was operating its 32nd flight, in preparation for delivery to the Myanmar air force. [2] Just days before the accident, the type had been granted extended certification. [3]
The Antonov An-74 (Russian: Антонов Ан-74, NATO reporting name: Coaler) is a Soviet/Ukrainian transport aircraft developed by Antonov. It is a variant of the An-72 . The An-72 and An-74 get their nickname, Cheburashka , from the large engine intake ducts, [ 3 ] which resemble the oversized ears of the popular Soviet animated character ...
The Antonov An-148 is a new regional airliner of twin-turbofan configuration. Over 150 aircraft have been ordered since 2007. ... twin-engine cabin monoplane ...
The aircraft involved in the accident was an Antonov An-148-100B built by Voronezh Aircraft Production Association, [10] registration RA-61704, MSN 27015040004, powered by two Progress D-436 engines. It first flew in May 2010 and was delivered to Rossiya Airlines in June 2010.
A Progress D-436 installed on an Antonov An-158 D-436K The "K" variant was the initial model of the engine. It had a bypass ratio of 6.2 and a pressure ratio of 21.0. Proposed for use in the defunct Antonov An-71. [5] D-436M The "M" variant was proposed for use on the Yak-42M. [6] D-436T1
Shortly after take-off the No. 2 engine of the Antonov An-124 Ruslan operating the flight suffered an uncontained engine failure. [1] Debris from the engine punctured the aircraft's fuselage and wings, affecting power supplies and rendering the ADS-B inoperative. The aircraft's braking system was also affected, [3] as were engines 3 and 4. [4]
Antonov decided to install less powerful D-436-148FM engines on the first An-178 prototype, perhaps as an interim measure. The D-436-148FM is a derivative of the production-standard D-436-148 with an upgraded fan, which boosted the takeoff thrust to 7,800 kgf; it has an emergency power rating of 8,580 kgf. [8] [9]