Singapore Airlines one engine out

[Tristar]

At about 14:00 I heard one of our Gulf Air flights relaying for Singapore Airlines aircraft with one engine out; routing via Turkey towards Iranian FIR That is a very high MSA route! They were at FL270; not sure whether it was a ferry flight or they had lost an engine.
Anybody has anymore details?

[Maurice Chavez]

routing via Turkey towards Iranian FIR That is a very high MSA route! They were at FL270

Oh, ok, do you have the airway number and is the MORA there around FL250 then??Pretty uneventfull the way I see it, but then again, who am I.

[Airbubba]

Yep, an engine out is no big deal anymore see:

http://www.pprune.org/forums/showthr...hreadid=173143

[faheel]

Yeah no big deal if you have four but it IS a big deal if you only have 2 to start with and the mora is 17000 ft or so .

If you have to fly over high terrain for an extended period on one, I for one would be a mite uncomfortable !

[bigmountain]

Well if its a four engine aircraft , rules don't require it to "land at the nearest suitable airport" With 3 engines turning, FL270 that would probalbly be the 3 engine altitude. at the weights SIA generally would be at on a flight from Europe to the middle east. or vice versa. However if it was one of SIA's B777 then you would probably expect them diverting into one their enroute alternates

The terrain over Iran and Turkey is not as high as over Pakistan enroute to China and Twin engines as well as 4 engines regularly fly across. Engine out are not a problem as much as a rapid depressurization. To optimize their routes airlines have "escape routes" that allow them to use lower altitudes (14000/10000')where Grid Moras and MORA are higher

BM

[A340Jock]

BM with all due respect sir, escape routes are not ment to "optimise" they are exactly what the name implies, an escape path from high terrain in the event of a decompression and a diversion route to an en-route alternate. As you correctly mentioned airlines have them in areas of high terrain to give crews the ability to both descend as well as stay safe from high terrain while diverting.
For example close to Tehran in Iran there are escape routes from the airway to divert to THR airport while avoiding high terrain.
Again as you correctly mentioned they are designed for decompression problems and not so much engine out situations as most commercial aircraft be it twins or four engine aircraft do have the ability even with one engine out to stay above MSA's or Grid MORA's of even 19000ft.

[MarkD]

Could someone who actually knows something inform us all of the SIA aircraft type involved?

[EmiratesSandpit]

My records show that it could have been

0710 SQ345 ZRH - SIN via DXB. Delayed 23 hours 16 minutes.

Reason: Unknown.

Left ZRH gate 23 hours 51 minutes late. Arrived DXB gate Unknown minutes late. Left DXB gate at 1859. Arrived SIN Gate 23 hours 18 minutes late.

Though I'm not 50% sure.