'GEAR' aural warning indicates a radio altitude of less than 500 ft and throttles below climb (CLB) or flaps at 30 degrees with any gear not down.

All normal brakes have failed.

PARK/EMER BRAKE is engaged while in take-off configuration.

One or more of the copilot's brake pedal sensors (LVDTs) has failed.

Gear position and the landing gear control handle position do not match.

A complete failure of the gear control or the loss of the ARINC 429 signal from the two channels.

The inboard brake hydraulic system/accumulator pressure indication is below 1400 psi.

Two inboard system brakes have failed.

Left inboard system brake has failed.

Left outboard system brake has failed.

At least one of the nose gear doors are not closed and the nose gear is up.

Nose wheel steering system has failed.

Nose wheel steering turning limit has been exceeded.

The outboard brake hydraulic system/accumulator pressure is detected below 1400 psi.

Outboard brake accumulator pressure is low.

Park brake pressure is sensed with WOFFW. Do not cycle handle more than one time.

The inboard brake hydraulic system/accumulator pressure indication is below 1200 psi.

One or more of the pilot's brake pedal sensors (LVDTs) has failed.

Right inboard system brake has failed.

Right outboard system brake has failed.

Failures have been sensed in two or more WOW sensors

One or both pairs (inboard and/or outboard) of the brake pressure transducers has failed.

Nose wheel steering selector valve is open.

A failure in the proximity sensor channel or the loss of the signal from one of the channels.

Nose wheel steering PBA is set off.

Park brake pressure is sensed while on the ground.