Another critical aviation infrastructure maintenance blunder by the ANC
15 December 2022
In less than a week after the DA learnt of the collapse of our pilot-control-tower communication system and that the backup communications system has been broken for close to a year, more complaints have been reported of navigational and guidance support equipment that is not being maintained adequately.
According to reports received, the touchdown zone sensors on the aircraft runway pathways at OR Tambo in Johannesburg are broken and unrepaired since 6 December.
Touchdown zone sensors also known as RVR (Runway Visual Range) sensors are typically three sets of transmissometers located at the touch-down, mid-point and roll-out end of a runway. The transmissometer measures how much light still makes it through the atmosphere and determines how much visibility there is on the runway. These safety features are particularly valuable to aircraft in conditions of low visibility like fog, mist, precipitation, haze etc.
The touchdown zone for runway 03 has been left inoperative with no indication of when this will be fixed. While an international airport like OR Tambo should have at least one spare set of transmission meters it is unlikely that this will be fixed before the end of this year.