Investigation Summary
The exercise involved a 'Renegade' scenario where the Learjet 35A, operated by GFD (a subsidiary of Airbus Defence and Space), acted as a non-responsive civilian aircraft. Two Eurofighter Typhoons from Taktisches Luftwaffengeschwader 31 were tasked with intercepting it. The collision occurred at 14:38 CEST as the lead Typhoon positioned itself to be followed by the Learjet. The Learjet crew, distracted by task distribution and computer usage, failed to maintain situational awareness of the fighter jet's position. As the Learjet turned, the pilot maintained a bank angle that placed the Typhoon in a blind spot. The BFU investigation highlighted that the risks of unexpected maneuvers during interception were not sufficiently mitigated by either the civilian operator or the military, noting a lack of standardized task distribution for such high-risk training missions.
Final Conclusions
The BFU final report, published in August 2015, concluded the accident was caused by the Learjet crew continuing a turn with an excessive bank angle despite losing visual contact with the intercepting Eurofighter. Systemic factors included the operator's failure to specify task distribution for Renegade exercises and a lack of comprehensive risk analysis or detailed training descriptions by both GFD and the German Air Force.
Video Analysis
Dead Spot | 2014 Olsberg Mid-Air Collision — A detailed look at the collision between a German Eurofighter Typhoon and a Learjet 35 during a military exercise, exploring the visual limitations and procedural gaps that led to the crash.
If playback is blocked, the owner has disabled embedding — use the link above.
Airframe & Maintenance
GFD Gesellschaft für Flugzieldarstellung D-CGFI — Learjet 35A · D-CGFI
Crew Experience
Captain
Copilot
Systems & Failure Modes
Visual Field / Blind Spots
The Learjet crew's field of vision was limited by the aircraft structure during the steep turn, causing them to lose sight of the Typhoon flying on the inside of the turn.
Flight Data Recorder (FDR)
The Learjet's FDR and CVR were recovered and provided critical data regarding the bank angle and crew communication prior to the impact.
Interesting Facts
- 01The Learjet 35A (D-CGFI) was built in 1985 and operated by GFD GmbH.
- 02The Eurofighter Typhoon (30+91) was built in 2012 and operated by the German Air Force.
- 03The collision occurred at an altitude where the Learjet was simulating a hijacked airliner.
- 04Both crew members on the Learjet were killed; the Typhoon pilot was uninjured.
- 05The Learjet's flight recorders were recovered 3 kilometers from the main wreckage site.
Safety Actions & Advisories
Risk Analysis for Interception Training
The BFU recommended that the German Air Force and civilian contractors conduct formal risk assessments and define specific crew task distributions for Renegade training scenarios.