Circular No : R&P/25/04/LH
Subject : Height Control Clearance For Erection Of Tall Construction Equipment In Singapore
Date : 24 April 2003
Officer-in-charge : Ms Lilis Harjanto
We refer to the letter from Civil Aviation Authority of Singapore (CAAS) ref OP/OBT/O9.3 V83 dated 15 April 2003 and wish to inform members as follow:
On our regular inspections at worksites, we have observed instances of unauthorised crane erections. These cranes were erected without our clearance on height control. We view such occurances with serious concern as the cranes, particularly tall cranes erected in the vicinity of our airports, could pose a safety risk to aircraft operations. While we have written individually to warn errant contractors who put up cranes without our clearance, we would like all contractors to be aware of the need to consult CAAS before any erection of tall construction equipment.
With reference to the Singapore map found in http://www.caas.gov.sg/media/CAAS/articles/OperationsDivision/en/When_To_Contact_CAAS.html, please note that CAAS should be consulted on any erection of tall construction equipment within the green zone, regardless of equipment height. For any erection within the pink zone, CAAS should be consulted if the equipment height exceeds 150 metres above mean sea level.
A copy of the crane erection application form can be downloaded at CAAS website: http://www.caas.gov.sg. Please look under "Air Navigation Obstruction and Hazards Control under the e-Services in the main page.
Would appreciate it if you could give CAAS your full co-operation.