overspeed safran turbomeca arriel 2b or 2b1

[fly4mo]

who has any experience of engine overspeed arriel 2B or 2B1?

[staticsource]

In flight or on start??

[gipsymagpie]

Loads of times in a simulator. It's never been in an incident report to my knowledge unlike the equivalent P&W engine

[fly4mo]

in start procedure, pilote could stop rpm at 480

[haihio]

in start procedure, pilote could stop rpm at 480


480 N2 and NR ?
😱

[Nubian]

who has any experience of engine overspeed arriel 2B or 2B1?

Probably not many…..

Sounds like a complete rebuild.

would be interessting to know how this happened…

[gipsymagpie]

Loads of times in a simulator. It's never been in an incident report to my knowledge unlike the equivalent P&W engine
Actually, come to think of it there have been several overspeed events during the preference injector check. What do you want to know?

[staticsource]

There’s a gotcha on the B3 2B where the fadec can overspeed the engine on start, never had it on the 2b1 tbh

[gipsymagpie]

Actually, come to think of it there have been several overspeed events during the preference injector check. What do you want to know?
Scrub that - they were on Arrius not Arriel.

[haihio]

AS350B3 Rolls Over: Pilot Caught Out By Engine Control Differences - Aerossurance (http://aerossurance.com/helicopters/as350b3-rolls-engine-controls/)