No FR24 data yet on the thread ?! Ok let's start.
Takeoff at 0627 from SMI (SAMOS).
Reaches TOC FL360 at 0646 NW of ATH.
Starts a descent at 0649 with a ROD of approx 3100 ft/min (it's FR24, you never know...).
1 min later ROD becomes 5/600 ft/min and more or less remains the same till FL240 with some excursions back to 2500 ft/min.
FL240 at 0705 abeam SKG.
Aircraft overflies North Macedonia, Kosovo, Serbia, Hungary and Austria OEI.
TOD from FL240 @ 0849. 1h44 cruise OEI.
The occurrence aircraft returned to service about 17 hours after landing in Prague.
On Aug 24th 2019 The Aviation Herald received additional information stating maintenance performed a wet run of the engine after landing, which failed, the engine valve closed light remained illuminated and no fuel was supplied to the engine. Maintenance subsequently replaced the hydro mechanical unit (HMU), fuel filter nozzle, servo fuel heater, fuel pump and fuel heat exchanger, subsequently a test 5 - power assurance test - was performed and was passed.
On Aug 24th 2019 the airline confirmed the occurrence to Czech Media, e.g. irozhlas and zdopravy stating: "The crew proceeded in accordance with the safety and operational procedures for these cases and the aircraft landed safely. The commander is one of the most experienced in the company, the crew was in control of the situation and certainly would not underestimate anything."