Enterprise "Technical Problem"

James Shields · 29-06-2006, 09:48

This morning I was nice and early for the 8:20 Enterprise from Drogheda (AFAIR departs Belfast 6:50) to Connolly. At about 8:23 when everyone was expectently lined up along the platform it was announced that the train was approx 30 minutes late due to technical problems with the train, and the next train to Dublin would be the 8:32 commuter train.

Presumably this information was not exactly news. Even if NIR hadn't been in touch, somebody must have noticed when the train didn't show up in Dundalk (and I suspect that the information may well have been on Translink's website). So why do they wait until the last minute to tell people about the delay? Are they hoping that a steam train of old will magically appear on the viaduct? They must have known by about 8:10 that the Enterprise wasn't going to make it. If they made the announcement every few minutes from this point on, there wouldn't have been a mad dash over the bridge.

When the 8:32 reached Malahide, it was announced that it would terminate at Connolly. I presume this was to replace the 9:30 northbound Enterprise.

There seem to have been a rediculous amount of problems with the Enterprise in the last few weeks. Is it the weather?

Mark Gleeson · 29-06-2006, 10:20

Mains power failure between Lisburn and Moira has shut signalling down causing delays

The train could have broken down between Dundalk and Drogheda

Edit the 8:32 did indeed operate back to Belfast though its not shown on the translink website. Having reviewed the information it its clear that

1) The 6:50 Belfast Dublin failed south of Newry but before Drogheda
2) NIR did not update their page since it was off their radar
3) IE did'nt tell NIR that a 29K was on its way as the 9:30

MrX · 29-06-2006, 14:07

Isn't all train signalling backed up with a UPS (Uninteruptable Power Supply) of some sort?!

It'd seem a little worrying if a power outage could take signals off line!!!!

Mark Gleeson · 29-06-2006, 14:15

All IE CTC relay rooms have a back up generator some of the newer ones eg Heuston have full UPS to allow a smooth switch over. I have no info on NIR

It could be a level crossing that went wallop

From the info it appears the train did suffer a onboard issue south of Newry

No signal = red signal

Red Alert · 01-07-2006, 21:03

Onboard issue = HEP burning out of locomotive? Expect to see a lot of these as the 201's age.

Mark Gleeson · 01-07-2006, 21:06

HEP fault is normally terminal, ie need a tow the predominant fault currently is the parking brake sensor which can immobilise a train

To be fair to Irish Rail the instance of HEP problems has reduced significantly

29-06-2006, 09:48	#1
James Shields Member Join Date: Dec 2005 Location: Drogheda, Ireland Posts: 1,275	Enterprise "Technical Problem" This morning I was nice and early for the 8:20 Enterprise from Drogheda (AFAIR departs Belfast 6:50) to Connolly. At about 8:23 when everyone was expectently lined up along the platform it was announced that the train was approx 30 minutes late due to technical problems with the train, and the next train to Dublin would be the 8:32 commuter train. Presumably this information was not exactly news. Even if NIR hadn't been in touch, somebody must have noticed when the train didn't show up in Dundalk (and I suspect that the information may well have been on Translink's website). So why do they wait until the last minute to tell people about the delay? Are they hoping that a steam train of old will magically appear on the viaduct? They must have known by about 8:10 that the Enterprise wasn't going to make it. If they made the announcement every few minutes from this point on, there wouldn't have been a mad dash over the bridge. When the 8:32 reached Malahide, it was announced that it would terminate at Connolly. I presume this was to replace the 9:30 northbound Enterprise. There seem to have been a rediculous amount of problems with the Enterprise in the last few weeks. Is it the weather?

29-06-2006, 10:20	#2
Mark Gleeson Technical Officer Join Date: Dec 2005 Location: Coach C, Seat 33 Posts: 12,669	Mains power failure between Lisburn and Moira has shut signalling down causing delays The train could have broken down between Dundalk and Drogheda Edit the 8:32 did indeed operate back to Belfast though its not shown on the translink website. Having reviewed the information it its clear that 1) The 6:50 Belfast Dublin failed south of Newry but before Drogheda 2) NIR did not update their page since it was off their radar 3) IE did'nt tell NIR that a 29K was on its way as the 9:30 Last edited by Mark Gleeson : 29-06-2006 at 11:02.

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29-06-2006, 14:07	#3
MrX Really Regular Poster Join Date: Dec 2005 Posts: 585	Isn't all train signalling backed up with a UPS (Uninteruptable Power Supply) of some sort?! It'd seem a little worrying if a power outage could take signals off line!!!!

29-06-2006, 14:15	#4
Mark Gleeson Technical Officer Join Date: Dec 2005 Location: Coach C, Seat 33 Posts: 12,669	All IE CTC relay rooms have a back up generator some of the newer ones eg Heuston have full UPS to allow a smooth switch over. I have no info on NIR It could be a level crossing that went wallop From the info it appears the train did suffer a onboard issue south of Newry No signal = red signal

01-07-2006, 21:03	#5
Red Alert Regular Poster Join Date: Feb 2006 Posts: 33	Onboard issue = HEP burning out of locomotive? Expect to see a lot of these as the 201's age.

01-07-2006, 21:06	#6
Mark Gleeson Technical Officer Join Date: Dec 2005 Location: Coach C, Seat 33 Posts: 12,669	HEP fault is normally terminal, ie need a tow the predominant fault currently is the parking brake sensor which can immobilise a train To be fair to Irish Rail the instance of HEP problems has reduced significantly