During the demonstration, Holland's aircraft violated several safety regulations, including exceeding bank and pitch limits, flying directly over the air show spectators, and possibly violating altitude restrictions.

In a companion move to help assure safety until the structural changes are made, the agency issued a final rule imposing altitude restrictions on older 737's.

The altitude restriction is related to the stresses on a fuselage as the cabin is pressurized after takeoff and depressurized before landing.

Someone had not been obeying the altitude restrictions.

If Hawaii's experience is a guide, those rules may emphasize issues involving pilot training, aircraft reliability and the like, more than the question of altitude restrictions.

We had a seven thousand altitude restriction, you idiot.

Much has been made about the altitude restrictions intended to protect the pilots from Serbian surface-to-air missiles and antiaircraft artillery.

Stealth (where the player must avoid detection by radar or ground units, may be combined with an altitude restriction)

Some civil enclaves adopt an altitude restriction, i.e. one below which a civilian aircraft cannot descend while over-flying the enclave.

The curfew system may result in airport congestion while the altitude restriction can cause long detours and greater fuel consumption.