Hijack Procedures

Recognition and Initial Response

A hijack, or act of unlawful interference, is any situation where individuals attempt to seize control of an aircraft by force, threat, or intimidation. Early recognition is critical—signs may include suspicious passenger behaviour, threats, or direct confrontation. Flight and cabin crew are trained to remain calm, avoid escalation, and follow established security procedures.

Communication and Transponder Codes

The universally recognised transponder code for a hijack is 7500. Entering squawk 7500 discreetly alerts air traffic control to a hijack situation without alerting the hijackers. Radio communication should be cautious; the use of standard phraseology such as “Transponder seven five zero zero” or “Unlawful interference” may be used if safe to do so.

Crew Actions and Checklists

Crew actions are guided by the operator’s security programme and hijack checklist, which outline:

• Maintaining composure and compliance to avoid provoking hijackers
• Informing ATC discreetly using code 7500 and, if possible, coded messages
• Following established cockpit security protocols (e.g., locking cockpit doors)
• Coordinating with cabin crew for passenger safety and information relay
• Avoiding sudden manoeuvres or actions unless necessary for safety

Recovery and Reporting

Once the threat is resolved, recovery actions include:

• Advising ATC that the situation is under control (e.g., squawk 7700 for general emergency if required)
• Following post-incident checklists and procedures
• Completing mandatory reports of unlawful interference as required by regulations

Prevention and Security Programmes

Operators are required to have comprehensive security programmes, including training for all crew on hijack prevention, recognition, and response. These programmes are tailored to aircraft type and operational environment, ensuring preparedness across all scenarios.

Exam Emphasis

Expect questions on the correct hijack transponder code, reporting requirements, and the sequence of crew actions. Know the difference between hijack, emergency, and radio failure codes, and understand the importance of discretion and compliance during such incidents.