‘Air traf­fic con­trollers did well dur­ing out­age’

> Power fail­ure at con­trol cen­tre at­trib­uted to faulty cable at Subang air­port

The Sun (Malaysia) - - NEWS WITHOUT BORDERS -

PUTRAJAYA: Air traf­fic con­trollers did their best to en­sure safety and min­imise de­lays to all airspace users dur­ing yes­ter­day’s power fail­ure at the Kuala Lumpur Air Traf­fic Con­trol Cen­tre (KL ATCC), said the Depart­ment of Civil Avi­a­tion (DCA).

DCA in a state­ment said the power fail­ure, which oc­curred from 2.55pm to 4.06pm, was due to a Te­naga Na­sional Bhd (TNB) cable at the Sul­tan Ab­dul Aziz Shah Air­port (LTSAAS) in Subang ex­pe­ri­enc­ing a dis­rup­tion.

It said a gen­er­a­tor was func­tion­ing but the Un­in­ter­rupted Power Sup­ply (UPS) sys­tem that man­aged power to the var­i­ous Air Traf­fic Con­trol (ATC) sup­port equip­ment failed.

“As a re­sult, the link be­tween ra­dio and radar sta­tions from hill sites, in­clud­ing IPVPN lines to and from KL In­ter­na­tional Air­port (KLIA), was cut off and was not avail­able,” it said.

The un­avail­abil­ity of the radar data and ra­dio fre­quen­cies from hill sites had af­fected Area Con­trol Ser­vices at the KL ATCC, it added.

Ex­plain­ing fur­ther, DCA said the ar­rivals and de­par­tures at KLIA were not fully dis­rupted be­cause its sys­tem was con­nected through direct ra­dio link in­de­pen­dent from KL ATCC.

“The main ATC sys­tem was not fully af­fected as it has a sep­a­rate UPS. The par­tial avail­abil­ity of the sys­tem al­lowed ATC to pro­vide lim­ited ser­vices us­ing lo­cal ra­dio fre­quen­cies and Gent­ing Radar data,” it said.

To en­sure safety to the airspaces users, ATC had to de­lay air­craft on the ground at var­i­ous air­ports in­clud­ing KLIA, DCA said.

“ATC had to co­or­di­nate with our neigh­bour­ing Flight In­for­ma­tion Re­gions (FIRs) to space up traf­fic over­fly­ing Malaysia FIR. As a con­se­quence, 43 air­craft were de­layed for de­par­ture from KLIA.

“This was done to make sure safety was not com­pro­mised dur­ing the lim­ited ATC ser­vices,” it said.

DCA stressed that there was no ATC in­ci­dent dur­ing the power fail­ure. – Ber­nama

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