39 Years ago today: On 26 March 1981 a LOT Polish Airlines Antonov 24 emergency landed near Redzikowo, Poland, following propeller blade separation; killing 1 out of 52 occupants.

Date: Thursday 26 March 1981
Time: 20:40
Antonov An-24V
Operator: LOT Polskie Linie Lotnicze
Registration: SP-LTU
C/n / msn: 07306007
First flight: 1970
Crew: Fatalities: 0 / Occupants: 5
Passengers: Fatalities: 1 / Occupants: 47
Total: Fatalities: 1 / Occupants: 52
Aircraft damage: Destroyed
Aircraft fate: Written off (damaged beyond repair)
Location: 2 km (1.3 mls) from Slupsk-Redzikowo Airport (OSP) (   Poland)
Phase: Approach (APR)
Nature: Domestic Scheduled Passenger
Departure airport: Warszawa-Okecie Airport (WAW/EPWA), Poland
Destination airport: Slupsk-Redzikowo Airport (OSP/EPSK), Poland
Flightnumber: LO691

The Antonov crashed after impacting a tree while on final approach to Slupsk-Redzikowo Airport in Poland.
The right wing separated after hitting the crowns of roadside trees. The plane banked right and impacted the ground with the right landing gear first and turned 180 degrees. Although a fire erupted, all put one of the occupants evacuated safely from the aircraft.

Probable Cause:

The probable cause of the crash was the wrong interpretation of the altimeter readings and / or its operation by the crew.