Astar Re-Torques

[Heli500]

Hi All,

For those that make cameo apperances maintaing astars in the field and at remote bases or have engineers that do, we need some help. We're in the process of updating our MSA and hit a roadblock. We created an alternate procedure for the 2-10 hour re-torques similar to the one for the Bell 206 TRDS and Mast Nut. Transport was good to go with it, but require some more data from us. That data bieng log entries for the re-torques with results (No Movement or Discrepencies) for MR Head, Servos, TR Blade, Suspension bars etc..... If anyone is willing to share a few photos of past entries that we can submit it would be greatly appreciated and we will return the favour once our MSA is approved.

I tried to go to Airbus and get a letter similar to the one that Bell had issued long long ago, but they shot me down as usual.

Thanks

maintenance@kvheli.com

[Heliian]

Is that even possible without Airbus approving it?  

What kind of schedule are you planning on doing the retorques in?

 

[Heli500]

Yes it is possible without Airbus aproval. You can deviate from manifactures instructions as long as it is approved in your MSA and does not excede LifeLimit, OH or AD. It would be something along the lines of a combination of flight idle ground run and a max power flight.

Currently when you build up and install a head on an astar, you are supposed to check torque after first ground run before first flight. You would do the re-torque after a set time on the ground, then again after a set time full power flight (call it 15/15). It would need to be verrified at the next 150Hr inspection.

[ray]

Familiarize yourself with the difference between 'retorque ' and 'torque check'. 

I'll see if i have an entry to share tomorrow. 

[SwingWing]

7 hours ago, ray said:

Familiarize yourself with the difference between 'retorque ' and 'torque check'. 

I'll see if i have an entry to share tomorrow. 

I was going to say the same thing.. maybe that’s what transport didn’t like 🤷‍♂️

[Heliian]

I would leave out the "check it 150hrs later" part.  

[Heli500]

Sorry, torque check is what I need. Nothing is re-torqued.

I agree with Heliian. I will see if I can get it without 150hr check. Might have to put it in at first then remove at a later revision after more data can be obtained.

 

Thanks

[lamanated]

remember,rule 2 , The minister may make exemptions...we've seen repairs and extensions granted to companies that made us go Huh??  how'd they do that. and even dual inspections by the cook are allowed. one thing on Astars too,, Make sure you have those changed every time nuts entered in the book  and in inventory or taken out of, as Transport look for it I'm told, especially after an incident.