Article 166 of the Saudi Civil Aviation Law

This article sets a heavier penalty than Article 165 for acts that endanger aviation safety.

The penalty: Imprisonment for a period not exceeding three years and a fine not exceeding SAR 300,000, or either of them.

The acts:

1. Operating or flying an aircraft that has no nationality or registration marks, or has incorrect or unclear marks, without special permission from the Authority and with intent to conceal the aircraft's identity.
2. Operating an aircraft before obtaining the certificates required for its registration or airworthiness, without a special license, permit or authorization, or after any of them has been stopped, suspended, withdrawn, canceled or has expired.
3. Flying an aircraft without the prescribed certificates or licenses, or in cases other than those specified in the Law, without a special license from the Authority.
4. Flying an aircraft over a prohibited area, or flying over it unintentionally and not complying with the orders given.
5. Failing to comply with an order to land while flying in the territory.
6. Landing or taking off outside the announced airports or places, or flying outside the specified areas and routes, without special permission or other than in a case of force majeure.
7. Flying an aircraft in the territory without a license while carrying weapons and military ammunition or other materials whose carriage is prohibited by law, or persons intending to smuggle or commit a felony, even if it is not committed.
8. Flying while intoxicated or under the influence of a drug or medication that impairs the ability to fly.
9. Failing to enter the prescribed data in the aircraft's documents or records, or altering them in bad faith, or entering data contrary to the facts, thereby endangering or likely to endanger the aircraft.
10. Refusing without justification to carry out search operations requested by the authorities, or to contribute the means one has to rescue an aircraft or person at risk of perishing because of an aviation accident.
11. Entering without permission a prohibited aircraft movement area at airports, or bringing in or leaving animals or things there that harm the security of aviation safety.

Anyone facing an accusation of any of these acts needs a lawyer specializing in criminal cases.