On June 28, 2016, a SAAB, 340 was involved in an aviation accident near Warszawa (EPWA), PL. Investigators recorded the probable cause as: The warning on the central panel was caused by a leak in the seal insulating the electrical connections of the sensors, due to the action of external conditions. This summary draws on records from the Polish State Commission on Aircraft Accidents Investigation (PKBWL).
On 28 June 2016, a SAAB 340 received a Tail Pipe Hot warning for the left engine while climbing to FL080 near Warsaw. The crew shut down the engine and returned safely to EPWA. The cause was a seal leak.
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.
Probable cause
The warning on the central panel was caused by a leak in the seal insulating the electrical connections of the sensors, due to the action of external conditions.