1.   It remains unclear whether the wheel failed under normal operation or because of some outside factor, such as the wheel hitting something on the tracks.

2.   The pilot decided to return to Port Hedland when the wheels failed to retract after take off.

3.   Thiry abandoned before the start of the penultimate special stage, when the front left wheel bearing failed on his Ford Escort Cosworth.

4.   Thiry was forced to retire before the start of the penultimate special stage when the front left wheel bearing failed on his Ford Escort Cosworth.

5.   Witnesses said the plane missed a first landing when its wheels failed to come out.

6.   Last year he was on pole but spun out on the second lap when a wheel bearing failed.

7.   Last year he took pole position but spun off on the second lap when a wheel bearing failed.