Aircraft Maintenance and Repair

Aeroflot Group has an efficient aircraft maintenance, repair, and overhaul (MRO) system aimed at ensuring high fleet reliability, flight safety and on-time performance.

The MRO policy of Aeroflot Group airlines provides for strict compliance with the requirements of countries of registration, maintenance programmes and aircraft lease agreements. It is focused on enhancing capacity and technical competencies, rolling out cutting-edge technological solutions and providing employee training and development opportunities while improving economic efficiency.

Each of the Group companies has departments responsible for airworthiness and maintenance of operated aircraft. Aeroflot Group has in place a strategic programme to centralise maintenance of aircraft and components for Aeroflot and subsidiary airlines. The centralisation provides for separating base and line maintenance.

PJSC Aeroflot’s Aircraft Maintenance Department holds and maintains certificates issued by European, Bermudian, and Russian aviation authorities for maintenance of the following types of aircraft and components:

  • Airbus А320F (Line maintenance, A-check, C-check, 6YE-check);
  • Boeing 737 (Line maintenance, Base maintenance);
  • Airbus A330 (Line maintenance, A-check, C-check);
  • Boeing 777 (Line maintenance);
  • SSJ 100 (Line maintenance, Base maintenance);
  • Airbus A350 (Line maintenance).

Scheduled maintenance of all types of operated aircraft is performed under programmes developed in line with the guidelines provided by aircraft and key components manufacturers. Maintenance of key aircraft components, such as engines, landing gear, and auxiliary power unit (APU) is performed by third-party contractors.

The Company serviced 145.3 thousand takeoffs at Sheremetyevo (base airport) in 2019, up 9.3% year-on-year. Labour intensity per flight hour of Aeroflot fleet aircraft was 2.00 hours in 2019 (vs 2.27 in 2018).

In addition to own fleet maintenance, the Company offers maintenance services to third-party customers. Technical support services were provided to 31 airlines (including foreign ones) and 42 aircraft operators and MRO companies in 2019. During 2019, around 40% of Aeroflot airline’s fleet heavy maintenance operations were performed by in-house maintenance facilities and 61% were carried out by contractors.

MRO divisions at PJSC Aeroflot

Aircraft Maintenance Department Maintains aircraft operated by Aeroflot and other Group airlines
Airworthiness Department Maintains airworthiness of aircraft operated by Aeroflot, manages technical condition of the fleet throughout the entire aircraft life cycle, develops and implements PJSC Aeroflot’s strategy and policy covering aircraft operation
Quality Assurance Department Develops a quality management system for aircraft maintenance and airworthiness
+7 hangars
to maintain and repair aircraft

Frequency of aircraft inspections

Type of maintenance Frequency and aircraft type Description
Transit Check
  • After each landing at the base airport for Airbus A320/321, Boeing 737, SSJ100
  • After each landing for Boeing 777, Airbus A330
General inspection of the aircraft,cabin inspection, engine oil top-up
Oil Check
  • 24 hours for Airbus A320/321
Engine oil top-up
Daily Check
  • 48 hours for Boeing 737, 777, SSJ100
Inspection of wheels, brakes, fluid and gas refill
3 DY Check
  • 72 hours for Airbus A320/321, 330
Inspection of wheels, brakes, fluid and gas refill
Weekly Check
  • 7 days for SSJ100
Inspection of the cargo compartment and cabin equipment and furnishings
10 DY Check
  • 10 days for Airbus A320/321, 330, Boeing 777
Inspection of the cargo compartment and cabin equipment and furnishings
Service Check
  • 500 flight hours for Boeing 737
Inspection of the cargo compartment and cabin equipment and furnishings, generator oil top-up
375FH Check
  • 375 flight hours for SSJ100
Landing gear lubrication
A Check
  • 750 flight hours for Airbus A320/321, SSJ100
  • 800 flight hours for Airbus A330
  • 1,000 flight hours for Boeing 737, 777
Inspection of key zones of the aircraft, systems functional check, lubrication of landing gear and flight control systems
C Check
  • 7,500 flight hours for Airbus A320/321, SSJ100, Boeing 737
  • 18 months for Airbus A330
  • 3 years for Boeing 777
Detailed visual inspection with inspection panels open, systems operational check
D Check
  • 6 and 12 years for Airbus A320/321, 330, Boeing 737
  • 8 and 12 years for Boeing 777, SSJ100
Detailed visual inspection of structural elements for corrosion and fatigue, involves deep aircraft teardown

Take-offs serviced at Sheremetyevo airport

145,3 thousand

Labour intensity per flight hour of Aeroflot airline aircraft

2,00 man-hours


A-Technics is a Group subsidiary that specialises in maintenance and repair of aircraft and components. The company has maintenance centres in Moscow’s Sheremetyevo and Vnukovo and in Orenburg airport.

A-Technics enjoys successful and steady growth. Base maintenance of Aeroflot airline’s SSJ100 fleet was organised at Sheremetyevo airport in 2019. Six regional line maintenance stations have been set up in six cities (Belgorod, Voronezh, Nizhny Novgorod, Saratov, Stavropol, Ulyanovsk). A-Technics was rated to carry out base maintenance of Airbus A321 aircraft at Sheremetyevo airport.

A line maintenance station for SSJ100 and Boeing 737 aircraft has been set up at Krasnoyarsk.

In 2019, A-Technics serviced 35 Rossiya’s aircraft, 91 Aeroflot’s aircraft and 10 Pobeda’s aircraft, as well as other airlines’ aircraft.

A-Technics won the Achievement of the Year in Russian MRO Market award at the MRO Russia and CIS event.

Maintenance facility and line maintenance station at Vnukovo

Focus on line and base maintenance for Boeing 737 NG, 747, 777, Airbus A320F.

Line maintenance of SSJ100.

maintenance specialists averaging twelve years of expertise in aircraft MRO.
~13000 sq m
of maintenance facilities, including two wide-body hangars, repair shops.

Orenburg branch

Focus on base maintenance for Boeing 737.

Full range of MRO shops with advanced equipment.

maintenance specialists averaging ten years of expertise in aircraft MRO.
4000 sq m
of maintenance facilities, including two narrow-body hangars.

Line maintenance station at Sheremetyevo

Focus on line maintenance for Boeing 737, Boeing 747, Boeing 777, Airbus A320F, SSJ100.

maintenance specialists averaging ten years of expertise in aircraft MRO.
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