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-   -   overspeed safran turbomeca arriel 2b or 2b1 (https://www.pprune.org/rotorheads/647649-overspeed-safran-turbomeca-arriel-2b-2b1.html)

fly4mo 6th Jul 2022 18:59

overspeed safran turbomeca arriel 2b or 2b1
 
who has any experience of engine overspeed arriel 2B or 2B1?

staticsource 6th Jul 2022 21:59

In flight or on start??

gipsymagpie 7th Jul 2022 05:32

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

fly4mo 7th Jul 2022 08:06

in start procedure, pilote could stop rpm at 480

haihio 7th Jul 2022 12:20


Originally Posted by fly4mo (Post 11257588)
in start procedure, pilote could stop rpm at 480


480 N2 and NR ?
😱

Nubian 7th Jul 2022 20:48


Originally Posted by fly4mo (Post 11257376)
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 7th Jul 2022 20:56


Originally Posted by gipsymagpie (Post 11257532)
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 8th Jul 2022 06:21

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 8th Jul 2022 06:22


Originally Posted by gipsymagpie (Post 11257966)
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 8th Jul 2022 09:10

AS350B3 Rolls Over: Pilot Caught Out By Engine Control Differences - Aerossurance




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