Investigation Summary
During the cruise portion of the flight, a passenger named Alex Hildebrandt entered the cockpit armed with a sawn-off .22 calibre rifle and a small explosive device consisting of two sticks of gelignite and a detonator. He demanded that the aircraft be diverted to Singapore. First Officer Tom Bennett attempted to calm the hijacker, but Hildebrandt fired a shot that passed through the aircraft ceiling, narrowly missing Bennett. In the ensuing struggle, Bennett punched Hildebrandt and tore the wires from his hand, successfully disabling the bomb. Captain Dennis Lawrence, a TAA pilot traveling as a passenger, assisted Bennett in subduing and restraining the hijacker using handcuffs carried on board. The aircraft remained controllable throughout the incident and landed safely at Eagle Farm Airport in Brisbane.
Final Conclusions
The incident was concluded as an attempted hijacking and attempted sabotage. The perpetrator, Alex Hildebrandt, was arrested upon landing in Brisbane and initially sentenced to 15 years total imprisonment. However, he successfully appealed his conviction in the Queensland Criminal Court on the grounds that the aircraft was over New South Wales when the crimes were committed, challenging Queensland's jurisdiction. After serving a three-year sentence in Brisbane for attempted murder, he was immediately re-arrested by New South Wales detectives upon release, subsequently convicted in NSW, and sentenced to a further seven years. The successful resolution of the flight itself was attributed to the quick thinking and physical intervention of First Officer Tom Bennett and Captain Dennis Lawrence.
Video Analysis
No video analysis linked for this case file yet.
Systems & Failure Modes
Cockpit Door
In 1960, cockpit doors were typically not reinforced or locked during flight, allowing the hijacker easy access to the flight deck.
Gelignite Explosive
The hijacker carried a stick of gelignite with a detonator; the detonator fired but failed to trigger the main explosive charge.
Interesting Facts
- 01This was the first attempted hijacking of a commercial aircraft in Australia.
- 02A shot was fired during the struggle, but it did not cause a decompression or structural failure.
- 03The explosive device carried by the hijacker was capable of destroying the aircraft had it functioned correctly.
Safety Actions & Advisories
Aviation Security Review
The incident prompted the first major review of passenger screening and cockpit security protocols in Australian civil aviation.
Known Controversies & Unanswered Questions
Jurisdictional Legal Dispute
Reference ↗Following his conviction, Alex Hildebrandt appealed to the Queensland Criminal Court, arguing that the Queensland court lacked jurisdiction because the act of arming the explosives occurred while the aircraft was in New South Wales airspace. The appeal was successful regarding the explosives and aircraft destruction charges, leading to a unique legal situation where he had to be re-arrested by NSW authorities upon his release from a Queensland prison to face charges in the correct jurisdiction.
Location
APPROXIMATE POSITION · Coordinates are the reference point of the airport named in the location, not the point of impact. The ring shows the accuracy the record supports, not the point of impact.