Event Description
On 28 June 2016, a SAAB 340 aircraft operated a flight from Warsaw Chopin Airport (EPWA) to Kyiv Zhuliany Airport (UKKK). During pre-flight preparations, engine start, taxi, and takeoff, no abnormalities were observed. After takeoff, while climbing to flight level 080 (FL080), a master warning (MW) and a "Tail Pipe Hot" warning appeared for the left engine. The crew stopped the climb, notified air traffic control (ATC), and performed the QRH emergency checklist for "TAIL PIPE HOT light on." Following the procedure, the left engine was shut down. The crew informed ATC of the need to return to the departure airport. The approach and landing on one engine were completed without further complications. There were two occupants on board, and no injuries were reported. The meteorological conditions on the day of the flight did not influence the event.
Cause
The warning on the central panel was caused by a leak in the seal that insulates the electrical connections of the sensors, resulting from the action of external conditions.