Moscow, Sep 18 (RIA Novosti) Russia has opened criminal cases against the top management of a company accused of providing low-quality equipment for MiG-29 fighter jets sold to Algeria, a media report said Friday.

Russia’s business daily Kommersant said that Algeria has refused to accept the aircraft due to its “inferior quality”.

Musail Ismailov, chief of the Aviaremsnab Company and his deputy Alexander Kutumov were convicted after investigators concluded that the company used forged certificates and tags on old equipment and sold it as new to the MiG Company.

Under the $14.3 million contract, Aviaremsnab was to supply MiG with new spare parts and equipment. The company received $1.7 million in advance payments for components made in 2005-2006, but received products manufactured between 1982 and 1996, with forged certificates.

Some of the parts were to be shipped to the Polish air force, and others were to be used in the 24 MiG fighters that Algeria later refused to accept due to their inferior quality.

The fraud, however, had been uncovered before the components were installed.

Russian arms export monopoly Rosoboronexport signed a $1.3 billion contract to deliver 28 one-seat MiG-29SMT fighters and six two-seat MiG-29UB combat trainers to Algeria in March 2006 as part of an $8 billion military cooperation agreement.

However, after receiving 15 MiG fighters, Algeria in May 2007 refused further deliveries. In October 2007 it froze all payments stipulated in contracts with Russia, requiring that Moscow first take back the 15 MiG-29s due to their substandard quality.

The aircraft were eventually returned to Russia in April, and after thorough testing were approved for service with the Russian Air Force.

Meanwhile, following a MiG-29 crash in East Siberia last December, the defence ministry admitted for the first time last week that Russia’s MiG-29 fleet of 281 aircraft was mostly outdated and not capable of performing combat duties.

Military experts believe the aircraft, which was developed in the 1970s and supplied to the Air Force between 1983 and 1993, has become obsolete and needs to be removed from active service.

MiG-29SMT is an upgraded version of the MiG-29 fighter, carrying a wide range of air-to-air and air-to-surface weaponry.

The MiG aircraft maker has said that after an upgrade the combat effectiveness of the aircraft increased three-fold and operating costs dropped by about 40 percent