YSSY Atis

[Jason H]

yeah NAIPS is down at the moment too.....I need it too!

[Chris W]

NAIPS and the Online Briefing service were down from about 1320 until 1830, reason unknown. The poor guys at the Brisbane Briefing office would have earnt their wage and then some this afternoon.

[Philip Argy]

Surprised to see 34 still in use with Xwinds gusting to 26 knots (and I'd estimate higher than that myself) - what's the usual limit?

ATIS ATIS YSSY B 042141
APCH: EXP INDEPENDENT VISUAL APCH
RWY: 34L AND R FOR ARRS AND DEPS
OPR INFO: PARL RWY OPS IN PROG.
INDEPENDENT DEPARTURES IN PROG
+ WIND: 300/25-40, XW MN 17, MAX 26

[David C]

The X wind limits vary from aircraft to aircraft and also depends on other factors as runway surface conditions . I read that the 787 will have a typical X wind limit of around 25Kts , a little on the low side I would have thought .

Dave C

[James Smith]

Philip, with the wind at a steady 300 degrees the crosswind on the 34 runways is still less than runway 25, so if a type of aircraft is not able to land in that crosswind, due to exceeding limits, would need to go around and try again, or as a last resort divert. Will make for some great photos though today with all the fathers trying out their new cameras and/or lenses.

[Chris W]

They usually start looking at the option of 25/07 only with a crosswind between 20-25 knots. Of course it depends on the time of day and the traffic loads though.

[Philip Argy]

ATIS right now has this:

RWY 34R GP AND DME NOT AVBL, DO NOT USE - FALSE INDICATIONS POSSIBLE

The unavailability of GP and DME for 34R has been notified for weeks, but this is the first time I've seen the "DO NOT USE" advisory with the "FALSE INDICATIONS" warning. What exactly is the problem with 34R GP and DME and why is it taking so long to fix??

[JamesW]

Hi Phillip,

AsA are currently replacing the whole ILS system for 16L/34R and 34R has been chosen to be the one which is replaced first. Here is the AIP AIC of the replacement: http://www.airservicesaustralia.com/...up/a10-h19.pdf. It says the new ILS should be commisioned around the 17DEC10. You may of also heard ADA01('Auscar 1') flying around Sydney, and this is the navaid testing aircraft, and also helps with the alignment of the System. The 16L ILS system will be next, and therefore you will see that in the ATIS when the 16's are active. Also the use of LOC Y is due to the approach using DME referencing to the SY DME and not the LOC DME. Hope this answers your questions

[Phil M]

Philip,

The difference yesterday morning is that the ILS was actually turned on to allow Auscal to do the commissioning flights. Once the ILS was on, but NAVBL to be used, the "do not use, false indications possible" phrase needs to be added to the CATIS.

[Mick F]

James, the callsign is "Auscal 1", not "Auscar 1".

Cheers

Mick