Windmilling fans - what's the best way to secure them?
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Windmilling fans - what's the best way to secure them?
Those of you working with the RB211-535C will be familiar with the mind-numbing clatter a windmilling fan creates. This windmilling also adversly affects the engine.
Other than fitting the full intake cover, are there any other permissible methods of securing the fan? I am aware of one airline that secures the fan by looping a strap around a blade. The strap is then secured by pip-pin to the inlet cowl.
Any thoughts?
Other than fitting the full intake cover, are there any other permissible methods of securing the fan? I am aware of one airline that secures the fan by looping a strap around a blade. The strap is then secured by pip-pin to the inlet cowl.
Any thoughts?
Last edited by Ravintola; 1st Jun 2004 at 16:09.
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The only way is the approved way in the aircraft maintenance manual, if its even mentioned there, other than that damage could occur or foriegn object may be left in the intakes.
In saying that i cant find much about it in the 747 manual. Ive heard of them being chocked, but if also heard of chocs being left in there!!
Theres nothing worse than clattering fan blades!
Stu.:
In saying that i cant find much about it in the 747 manual. Ive heard of them being chocked, but if also heard of chocs being left in there!!
Theres nothing worse than clattering fan blades!
Stu.:
In days past when exec jets were ferried trans Atlantic (E – W), the winter kit included a long handled soft brush for the early morning snow – Reykjavik, Sondrestrom, Goose etc.
Inserting the brush handle though the fan secured the engine!
I heard on dubious authority that a 146 was three engine ferried in the same manner.
Inserting the brush handle though the fan secured the engine!
I heard on dubious authority that a 146 was three engine ferried in the same manner.
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Oddly enough, we just recommended a G4 to a client, and you can bet your boots it will be supplied with engine covers.
To do without is, in my opinion, very foolish.
Otherwise, tie the fan blades in place with wide nylon strap, in a pinch.
Works for many operators, including short term storage.
To do without is, in my opinion, very foolish.
Otherwise, tie the fan blades in place with wide nylon strap, in a pinch.
Works for many operators, including short term storage.
