Investigation Summary
The incident occurred during a station air defence exercise at RAF Wildenrath. Phantom XV422 was one of three aircraft 'on state' for Quick Reaction Alert (QRA) duties (meaning it was fully armed with live missiles). Due to a hurried briefing after missing the start of the exercise, the crew scrambled in the armed aircraft to intercept two Jaguars returning to RAF Brüggen. During the intercept, the Phantom pilot, Flt Lt Roy Lawrence, followed standard simulated attack procedures. However, the Master Arm switch was not in the safe position, and a live AIM-9G Sidewinder was launched. Although the navigator, Flt Lt Alistair Inverarity, believed he had pulled the weapon system circuit breaker to render it inert, post-crash testing showed the breaker was faulty and could re-engage with only slight pressure, potentially caused by the navigator's leg during high-g maneuvering. Furthermore, the fighter controllers at the Sector Operations Center were in the midst of a concurrent emergency drill. This distraction caused the operator to forget the standard 'check switches safe' command, which would have alerted the crew that their weapons were live.
Final Conclusions
The Board of Inquiry concluded that a breakdown in communication and procedural discipline led to the shootdown. While technical factors like a faulty circuit breaker and the lack of safety tape on the Master Arm switch were noted, the board placed primary responsibility on the Phantom crew for failing to ensure their weapons were safe. Both the pilot and navigator were court-martialed and found guilty of negligence, receiving severe reprimands. The Jaguar pilot, Flt Lt Steve Griggs, survived the ejection and was assisted by local civilians.
Video Analysis
The Shocking 1982 RAF Phantom vs. Jaguar Incident — An investigation into the friendly fire incident where an RAF Phantom accidentally shot down an RAF Jaguar over West Germany during the Cold War.
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Systems & Failure Modes
Master Arm Switch
A cockpit switch designed to prevent accidental weapon discharge; it was not secured in the 'safe' position during the training flight.
AIM-9G Sidewinder
A short-range air-to-air missile; a live version was mistakenly fired instead of an inert training variant.
Weapon System Circuit Breaker
A redundancy safety located in the rear cockpit; investigators found it required only slight pressure to re-engage, potentially allowing the system to go live during flight.
Interesting Facts
- 01The Phantom involved (XV422) was a Quick Reaction Alert (QRA) aircraft loaded with live missiles.
- 02The Jaguar pilot, Steve Griggs, had to eject from another Jaguar just five months later due to a fuselage fire.
- 03The Phantom's navigator insisted he had pulled the circuit breaker to safe the weapons, but the breaker was found to be faulty.
- 04Fighter controllers were never informed that the intercepting Phantom was carrying live ammunition.
- 05The Phantom crew received a severe reprimand, which was the lightest possible sentence following their court martial.
Safety Actions & Advisories
Weapon Safety Procedures
The incident highlighted the critical need for 'check switches safe' calls from fighter controllers when armed aircraft are involved in training.
Circuit Breaker Inspection
The investigation identified a design or maintenance flaw where the rear cockpit circuit breaker could be inadvertently reset by the navigator's leg.