Incident Overview
On 21 October 2009, a private Mooney M20J aircraft, registered as ZS-LBU, was involved in an incident at Lanseria Aerodrome (FALA) in Gauteng Province, South Africa. The flight was a training exercise involving takeoff and landing circuits. The incident occurred during the second circuit when the aircraft touched down on Runway 06R.
Sequence of Events
The pilot reported that while on the downwind leg, he selected the undercarriage switch to the 'down' position. Air Traffic Control subsequently requested a reduction in speed due to departure traffic. The pilot throttled back to approximately 15 inches of manifold pressure and maintained a speed of about 80 knots. Upon turning onto final approach, the pilot checked the undercarriage switch again, confirming it was in the 'down' position. During short final approach, he performed final checks and physically confirmed by touch that the switch remained in the 'down' position.
Impact and Aftermath
Upon touchdown, the initial contact appeared normal, but the pilot noted a gentle impact on the centerline and observed sparks from the nose wheel due to surface irregularities. The undercarriage then collapsed. The pilot shut off all electrics and fuel, set switches to ground positions, and evacuated the aircraft due to smoke and a burning smell in the cockpit. Fire and rescue services responded promptly to assist with recovery.
Aircraft Damage and Investigation Findings
The aircraft sustained damage to the propeller, underbelly, and undercarriage push-rod. Minor damage was also noted on the main gear doors. The investigation concluded that it is probable the pilot forgot to lower the landing gear in time, despite his reports of checking the switch position. No injuries were reported to the single person on board.