What happened
On the evening of 18 December 2006, a PA-28-140 aircraft, registration ZS-ELU, crashed into a building in the Johannesburg central business district near the Vodacom Tower. The flight originated from Lanseria Aerodrome, following a trip from Botswana, with the pilot intending to land at Rand Aerodrome.
While the pilot had initially been informed of acceptable visibility at Lanseria, a severe thunderstorm was moving into the area. As the aircraft flew over the Johannesburg CBD, it encountered heavy rain, mist, and lightning. Witnesses observed the aircraft flying low with the engine running before it impacted a building's basement at a high speed and steep nose-down angle. The impact destroyed the aircraft and damaged several vehicles parked in the basement.
The investigation
SACAA AIID investigators examined the wreckage and interviewed witnesses to determine the cause of the accident. The investigation confirmed that the aircraft was properly maintained and held a valid certificate of airworthiness. There was no evidence of mechanical failure; witnesses reported the engine was running at the time of the crash, and on-site inspections showed no disconnection of the primary flight controls.
Meteorological data from the South African Weather Service confirmed that radar imagery showed active thundershowers over Johannesburg at the time of the accident, characterized by gusty winds and significantly reduced visibility. The investigation also noted that a flight instructor at a nearby airfield had cancelled a scheduled training flight due to the deteriorating weather, highlighting the severity of the storm conditions.
Findings
- The pilot was flying under Visual Meteorological Conditions (VMC) but entered Instrument Meteorological Conditions (IMC) due to the approaching storm.
- The primary cause of the accident was spatial disorientation of the pilot, triggered by the loss of a visual horizon during heavy rain and low visibility.
- The aircraft impacted the structure in a steep, nose-down attitude, making the accident unsurvivable.
- The pilot was a private pilot with approximately 167 flying hours, including recent night-rating training.