Investigation Summary
Pan Am Flight 708 was a scheduled cargo service that typically operated into Tempelhof Airport. Due to runway maintenance at Tempelhof, the flight was diverted to Tegel Airport. The aircraft departed Frankfurt at 02:04 and reached a cruising altitude of FL90. During the approach to Berlin, the crew was operating in conditions of snow and low visibility. At 02:38, Berlin Control cleared the flight to descend to 2,000 feet. Shortly after acknowledging a turn to intercept the ILS for runway 08R, the Boeing 727 impacted the ground in the Döberitz Heath, located within the Soviet-controlled territory of East Germany. Because the Soviet Union was not a member of ICAO at the time, they did not allow Western investigators full access to the site or the wreckage. The Soviets eventually returned only half of the aircraft debris, notably withholding the most critical components for determining the cause of the crash: the Flight Data Recorder (FDR), the Cockpit Voice Recorder (CVR), and the flight control and navigation systems.
Final Conclusions
The NTSB determined the probable cause was the descent of the flight below its altitude clearance limit. However, the Board was unable to determine the specific cause of this descent due to the lack of evidence. The missing flight recorders and navigation equipment, retained by Soviet authorities, left investigators unable to verify if the crash resulted from mechanical failure, instrument error, or crew disorientation.
Photographic Evidence (1)
Video Analysis
No video analysis linked for this case file yet.
Airframe & Maintenance
Systems & Failure Modes
Flight Data Recorder (FDR)
The device was not returned by Soviet authorities, preventing investigators from analyzing the aircraft's flight path, altitude, and speed parameters.
Cockpit Voice Recorder (CVR)
The recorder was withheld by the Soviet Union, leaving no record of crew coordination or potential cockpit warnings prior to impact.
Navigation and Communication Equipment
These systems were among the components not returned, making it impossible to determine if instrument failure contributed to the premature descent.
Interesting Facts
- 01The aircraft was a Boeing 727-21 delivered earlier in 1966.
- 02The aircraft was named Clipper Munchen.
- 03The crash occurred in the Soviet occupation zone (East Germany) during the Cold War.
- 04Soviet authorities returned only about 50% of the wreckage to Western investigators.
- 05The Flight Data Recorder and Cockpit Voice Recorder were never recovered by the NTSB.
- 06Weather at the time included snow, 2.6 km visibility, and an overcast ceiling at 600 feet.
Safety Actions & Advisories
International Wreckage Recovery Protocols
Source ↗The NTSB recommended that the Department of State and the FAA work to establish more robust international agreements to ensure the return of flight recorders and critical components following accidents in foreign territories, particularly involving non-ICAO member states.
Known Controversies & Unanswered Questions
Withholding of Wreckage
Reference ↗The Soviet Union's refusal to return the flight recorders and critical flight systems led to significant diplomatic tension and prevented a conclusive determination of the accident's cause.