Ledenev was overseeing snow clearing work at the airport on the night of the crash.
Vladimir Ledenev is the third suspect arrested in the case of the jet crash that Monday killed four people at Moscow's Vnukovo airport.
The judge ruled that while at large Ledenev may use his knowledge of airport services’ work and destroy evidence in the case.
“The court did not establish any fact relieving Ledenev from custody,” Karpov said.
The court’s decision may be appealed with the period of three days, while investigators have 10 days to press official charges against Ledenev.
Earlier on Friday, the court arrested air traffic controller Alexander Kruglov who will remain in custody for at least two months, until December 21.
On Thursday the court arrested the prime suspect in the case. Vladimir Martynenko, a snowplow operator who allegedly caused the crash of the French Falcon jet, was arrested until December 21.
The court ruled in favor of the prosecution after preliminary medical examination results were announced that Martynenko was drunk at the moment of the crash.
Russia’s Investigative Committee spokesman said the level of alcohol found in Martynenko's blood was 0,6 per mille.
The field stage of the Falcon jet crash investigation was completed on Thursday. A chief investigator with the Interstate Aviation Committee reported the results of the field stage.
The crew of the French Falcon jet that crashed in Moscow's Vnukovo airport on Monday night noticed the snowplow just 14 seconds before takeoff.
A trainee air traffic controller supervised by instructor was guiding Falcon at Vnukovo before crash. All systems of Falcon jet were properly functioning until crash.
The collision of the snowplow and Falcon jet occurred on an intersection of runway strips. The runway strip was free when takeoff authorization was given. Falcon's speed was about 250 km/h when it crashed with the snowplow.
All fragments of the jet have been collected from the crash site. A thorough examination of the fuselage, collected fragments and fuel is still to be conducted.