Narrative:The flight, with the co-pilot at the controls, was cleared to the Outer Marker (CU NDB) for an ILS approach to runway 35. After passing the NDB the pilots switched to ILS and thus couldn't verify their position in the procedure turn. The aircraft was outside the 35deg sector of the ILS centreline and the crew followed the wrong side beam. The crew descended to Outer Marker altitude and the 737 struck Dümentepe Hill, 10,5nm from the airport. The aircraft disintegrated and burned.
Probable Cause:
PROBABLE CAUSE: "The accident occurred due to the wrong use of navigation aids. The cause is attributed mainly to the lack of adherence to company procedures especially in respect of crew coordination during approach and basic instrument flying procedures."
Classification:
Aircraft strayed off planned course
Controlled Flight Into Terrain (CFIT) - Mountain
Sources:
» FUS Flugunfall-Kurzbericht 2X0001/88
» ICAO Adrep Summary 3/89 (#6)
Photos

accident date:
02-01-1988type: Boeing 737-230
registration: D-ABHD

accident date:
02-01-1988type: Boeing 737-230
registration: D-ABHD

accident date:
02-01-1988type: Boeing 737-230
registration: D-ABHD

accident date:
02-01-1988type: Boeing 737-230
registration: D-ABHD

accident date:
02-01-1988type: Boeing 737-230
registration: D-ABHD
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does
not display the exact flight path.
Distance from Stuttgart-Echterdingen Airport to Izmir-Adnan Menderes Airport as the crow flies is 1831 km (1144 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.