Created Tuesday, Jun 15th 2021 19:29Z, last updated Wednesday, Jun 16th 2021 10:06Z
A UTAir Boeing 737-500, registration VP-BYL performing flight
UT-528 from Tyumen to Saint Petersburg (Russia), was climbing out of Tyumen but stopped the climb at FL260. About 5 minutes later the aircraft began to climb about 150 feet above FL260 prompting the crew to return to Tyumen. The aircraft burned off fuel and landed safely in Tyumen about 50 minutes after the decision to return.
The aircraft remained on the ground for about 8 hours, then departed for the rotation UT-9745/UT-9746 to Baku (Azerbaijan) and back.
Rosaviatsia reported the autopilot malfunctioned prompting the return to the departure aerodrome.
On Jun 16th 2021 Rosaviatsia added that there was a DC failure, an alarm for the right IRS, MACH trim failure, neither of the autopilots could be connected and no flight directors were shown.
