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Post by northbynorthwest on Feb 3, 2018 8:06:02 GMT 1
Great news! Jeppesen Approach Charts have been published and in effect for Cat III approaches on Liverpool Rwy 27 effective Feb 2nd. 2018. The other chart manufacturers will have them ready as well. This means that airlines can now begin using Cat III approaches once they have this approved in the Operations Specifications and the approaches are programmed into their navigation databases. I have no idea how long this will take for individual airlines, typically nav databases are updated for all carriers on a monthly cycle. Indeed, that is how I saw this as it has just been loaded into Delta's nav database.
Bottom line is that carriers like Easyjet, Ryanair, Wizz and I presume Blue Air will be able to land in Cat III conditions in the fairly near future, it is something that they would have been aware of being imminent. Note, the Dash 8's/ATR's are not Cat III certified.
For Cat IIIA approaches, the approach minimums are now Decision Height 50ft and RVR 200m. For Cat IIIB approaches, RVR is reduced to 75m. These carriers should be certified for Cat IIIB approaches. These approaches will all obviously be autoland. Crosswind limits for Cat III approaches on the 737 series and A319/320/321 is 15 knots. These aircraft are also certified for Cat III approaches with a 10 knot tailwind. Not having Cat III on rwy 09 should not be an issue - typically Cat III conditions occur in very light winds, so approaches would be possible on rwy 27 with a tailwind.
Compare this to the standard Cat II approach minimums of 200 ft ceiling above runway elevation and RVR 300m that are in effect for rwy 27 and 09 currently. It is a significant improvement over Cat II approaches, and should significantly reduce diversions away from Liverpool.
One of the biggest issues with Cat III operations is actually finding your way off the runway and along the taxiways, so there are very specific taxi instructions too. I wonder if Liverpool had to have the taxiway lights upgraded?
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Post by bustcapl on Feb 3, 2018 9:13:51 GMT 1
This is great news and long overdue.
Should certainly help on foggy days to reduce disruption
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Post by andyh on Feb 3, 2018 9:30:19 GMT 1
My recollection is that CAT III compliant lighting was installed when the runway was resurfaced.
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Post by kevmul on Mar 4, 2018 23:50:25 GMT 1
With visibility currently less than 200m, Cat 111 coming in to it's own.
Kev
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Post by bluefox on Mar 5, 2018 0:56:13 GMT 1
23.20 observation gives 2000m in mist.
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Post by dctmopas on Mar 5, 2018 3:46:12 GMT 1
Unfortunately the fog arrived rather suddenly so the airport couldn’t accept arrivals until the CAT 3 safeguarding procedure was complete. Meant delays for the approaches causing ezy618 (G-EZUS) to divert to MAN.
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Post by cambrian5619 on Mar 5, 2018 10:27:55 GMT 1
Unfortunately the fog arrived rather suddenly so the airport couldn’t accept arrivals until the CAT 3 safeguarding procedure was complete. Meant delays for the approaches causing ezy618 (G-EZUS) to divert to MAN. Can anybody explain what still needs to be done to complete the safeguarding procedure to make it fully useable please? |
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Post by andyh on Mar 5, 2018 10:32:31 GMT 1
Unfortunately the fog arrived rather suddenly so the airport couldn’t accept arrivals until the CAT 3 safeguarding procedure was complete. Meant delays for the approaches causing ezy618 (G-EZUS) to divert to MAN. Can anybody explain what still needs to be done to complete the safeguarding procedure to make it fully useable please? Nothing needs to be done. There are a series of checks that need to be made before the airport can say CAT III operations are in force on any given occasion. |
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Post by kevmul on Mar 5, 2018 10:35:34 GMT 1
Can anybody explain what still needs to be done to complete the safeguarding procedure to make it fully useable please? Nothing needs to be done. There are a series of checks that need to be made before the airport can say CAT III operations are in force on any given occasion. I think Cat III is only available on 27 (I may be wrong). An EasyJet flight from Paris was put into the hold last night while they switched from 09 to 27 and presumably carried out those checks before it was able to land. Kev |
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Post by dctmopas on Mar 5, 2018 16:22:11 GMT 1
Yes, Cat 3 is only available on 27. Meant last night it was only just possible to carry out the approach as the tailwind was 9 knots. 10knots is the maximum certified autoland tailwind limit for most aircraft types.
Also to add it was G-EZUZ that diverted last night, not G-EZUS
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Post by northbynorthwest on Mar 5, 2018 17:23:12 GMT 1
Yes, Cat 3 is only available on 27. Meant last night it was only just possible to carry out the approach as the tailwind was 9 knots. 10knots is the maximum certified autoland tailwind limit for most aircraft types. Also to add it was G-EZUZ that diverted last night, not G-EZUS Correct. Nice to see Cat III used in earnest. Going to save a lot of diversions in the future. As regards the delay in setting up the Cat III procedures, here is the notam covering this.... C6226/17 - AMEND THE WHOLE OF SUB-SECTION 3 CAT II/III OPERATIONS TO READ AS FOLLOW. 3 CAT II/III OPERATIONS (A)RUNWAY 27, SUBJECT TO SERVICEABILITY OF THE REQUIRED FACILITIES, ARE SUITABLE FOR CATEGORY III AND III OPERATIONS BY OPERATORS WHOSE MINIMA HAVE BEEN ACCEPTED BY THE CIVIL AVIATION AUTHORITY. (B)DURING CAT II/III OPERATIONS, SPECIAL ATC PROCEDURES (LOW VISIBILITY OPERATIONS) WILL BE APPLIED. PILOTS WILL BE INFORMED BY ATC WHEN THESE PROCEDURES ARE IN OPERATION. PILOTS ARE ADVISED THAT IMPLEMENTATION OF THESE PROCEDURES CAN CAUSE DELAYS FOR INBOUND AND OUTBOUND TRAFFIC. (C)AIRCRAFT DEPARTING RUNWAY 27 MUST HOLD AT THE ALPHA 2 HOLDING POINT. (D) ARRIVING AIRCRAFT MUST CONTINUE TO THE END OF THE RUNWAY TO VACATE VIA CHARLIE. AIRCRAFT MUST REPORT RUNWAY VACATED AND REPORT REACHING ALPHA 8. (E)FOR CAT II/III OPERATIONS, CHANGEOVER STANDBY POWER TO MAINS TAKES PLACE IN 1 SECOND. (F) AIRCRAFT PARKING ON THE MAIN APRON WILL NORMALLY ENTER AT WHISKEY AND EXIT AT UNIFORM, EXCEPT WHEN DIRECTED BY ATC. (G) ILLUMINATED STOP BARS WILL BE IN OPERATION AT HOLDING POINTS A2, A3, A8, K, T, U, V AND W DURING LOW VISIBILITY OPERATIONS. AD EGGP AD 2.20 REFERS AMEND ILS RWY 27 CAT II TO READ CAT II/III. AD 2.19 REFERS. 08 DEC 18:18 2017 UNTIL PERM. CREATED: 08 DEC 18:30 2017 I presume that airport ops will have to check the serviceability of all the stop bars and lights, hence the delays mentioned and the unfortunate diversion. |
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Post by scottiedog on Mar 7, 2018 18:59:26 GMT 1
I recall at Manchester that the ops teams had to go out onto the airfield to place barriers across internal roads where vehicles might otherwise enter are as that could effect the OLD.
Whether this applies at Speke I don't know.
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Post by Beemer on Sept 27, 2018 9:34:24 GMT 1
Can some one tell me why never a day goes by without the ILS being, out of service, under mtce , etc. One Ryanair pilot quoted when told the ILS was out of service "What's new". Beemer.
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Post by neil on Oct 10, 2018 23:11:58 GMT 1
Can some one tell me why never a day goes by without the ILS being, out of service, under mtce , etc. One Ryanair pilot quoted when told the ILS was out of service "What's new". Beemer Blame Brexit evrything else gets balmed on it so why not that  |
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