The Civil Aviation Safety Regulations Part 139 (Aerodromes) Manual of Standards 2019 section relating to the temporary closure of a taxiway at night did not:
CASA is currently developing Advisory Circular (AC) 139.C-15 v1.0 - Safe planning and conduct for aerodrome works and has undertaken to include guidance on the use of both unserviceability cones and lights to designate closed taxiways at night. That guidance will include consideration of the detrimental effect background lighting can have on identifying closed infrastructure. CASA also advised the review will include consideration of the use of reflective markings on cones used at night.
CASA’s safety action provides a method to address the issue and the ATSB will continue to monitor the safety issue until the actions are completed. However, as the CASR Part 139 Manual of Standards details airport lighting requirements, the ATSB considers that similar changes to the MOS content would also be beneficial.
