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-   -   Grand Canyon Accident: Pilot killed in AS350 rollover (https://www.pprune.org/rotorheads/540137-grand-canyon-accident-pilot-killed-as350-rollover.html)

AnFI 9th Jun 2014 19:56

MJB - sounds like a strong contender in the speculation game. Someone on this forum would know if the pilot sits on the left in this operator's 'A-Stars'?

peely 9th Jun 2014 20:07

In NZ, our CAA definition for Helicopter pilot flight time is skids up to skids down as well, so we do the same as other guys, and write down every T/O and Landing in the dairy and do a count up at the end of the day.

SuperF, where is this definition in our rules as I have often had this debate but can't find the wording in CAR Part 1?

SuperF 9th Jun 2014 21:01

peely, i've had the conversation quite often as well, just looked at the definitions and it doesn't say skids off to skids down, but i know that "somewhere" CAA have defined it as such for helicopters.

now you have got me thinking, I'll search it out for you. :ugh:

I do know that if you get Audited that your Pilot log book better match up "exactly" with your A/C logbook, and maybe thats where it comes from...

mickjoebill 10th Jun 2014 01:35


AnFI

Join Date: Dec 2008
Location: N/A
Posts: 468
MJB - sounds like a strong contender in the speculation game. Someone on this forum would know if the pilot sits on the left in this operator's 'A-Stars'?
Not speculation if Im asking a question:)
I flew with the operator twice last year in As350b, once with pilot on left the other with pilot on right.
No word yet if the aircraft in question was left or right hand drive.

Mickjoebill

peely 10th Jun 2014 02:33

Yes SuperF one or two audits so I appreciate where you are coming from. I always ask them to show me the exact wording but each audit we get a different CAA Rep and therefore a different answer - never seen it in black and white other than the Part 1 definition which is open to interpretation.

SilsoeSid 12th Jun 2014 21:47

While looking for something else, unrelated;

http://www.heli-lausanne.ch/directiv....2418-S-00.pdf

SAFETY INFORMATION NOTICE
SUBJECT: GENERAL
Flight Safety of Helicopters - Issue of EHEST leaflet

AIRCRAFT CONCERNED
EC120 B
AS350 B, BA, BB, B1, B2, B3, D L1
etc


Improving global flight safety is the top priority for EUROCOPTER. On this account, EUROCOPTER is fully involved in the work of IHST (International Helicopter Safety Team) who aims at reducing the helicopter accident rate worldwide by 80% by the year 2016. The European branch of the IHST, called EHEST (European Helicopter Safety Team), has released the following leaflet, dealing with safety and more particularly with airmanship.
As the analyses of accidents of all types of helicopters (including the EUROCOPTER ones) performed by the different teams of IHST (USA, Europe, Brazil, Canada, Australia, etc.) have demonstrated that the accident scenarios are very similar worldwide, the topics addressed in this leaflet are suited to helping all helicopter pilots to fly safely.
and right at the very end ...


Remember, the flight isn’t over until the engine(s) are shutdown and all checks completed and the rotors have stopped.
Just incase anyone missed this particular worldwide Safety Information Leaflet.

aclark79 13th Jul 2014 12:28

Can anyone tell me what a "control hold" is in an A-Star?

How does one give a control hold?

Why would adjusting any volume or selector switches be bad during a control hold?

Gordy 13th Jul 2014 12:37

A "control Hold" is where a qualified ground person, (loader, ramper, mechanic), sits or stands next to the flight controls while the aircraft is running and holds down the collective while the pilot leaves the aircraft for another authorized function. This can be written into Ops Specs, (FAA).

Adjusting stuff is not their job.

aclark79 13th Jul 2014 21:46

So you wouldn't be able to do a control hold with just the pilot present?

Gordy 13th Jul 2014 22:41

Not in this particular definition no. Nothing says you cannot leave the aircraft though---there is no such rule.

Boudreaux Bob 13th Jul 2014 23:01

Gordy, you might as well try to teach a Cat to yodel as try to convince your Brethren of that!

Gordy 14th Jul 2014 01:27

You're not wrong there Bob.....

aclark79 14th Jul 2014 22:45

The question then becomes who tells the pilots there that they can leave the aircraft? The company ops manual says you may not leave it when running unless performing a control hold or pilot swap, yet we hear from pilots there that they do leave the aircraft and haven't been getting into trouble.

I'm just trying to understand the why of it all.

Gordy 15th Jul 2014 05:30


I'm just trying to understand the why of it all.
Each Ops manual is different. If you manual prohibits the practice then do not do it.....if it does then no problem.

The FAA allows it, and will write it into Ops Specs if asked, and assuming you have the relevant risk mitigation's in place... (part 135).

Operating Part 91---no rule prohibits it, and there is an AC that give guidance, therefore tis up to you as Pilot In Command to interpret the rules and regulations that you are given, (FAR part 91/135/Ops SPecs etc..), and then to use your judgement and authority granted you by FAR 91.3, (FAA), and determine for yourself what you can argue in a court of law, or worse case in front of grieving relatives....

I defer to the words of SASLess, when given a choice, save in the following order:

Ass....Tin....Ticket.....

Choice is yours dude.....Welcome to the world of being a professional pilot...

RVDT 15th Jul 2014 06:10

Gordy,

And just to be sure - the RFM (as approved) would overrule all of 91, 135, Ops Spec etc.

It is part of Type Certificate. If the RFM prohibits then the only way around it is an STC and RFM Supplement.

[email protected] 15th Jul 2014 07:01


and then to use your judgement and authority granted you by FAR 91.3, (FAA), and determine for yourself what you can argue in a court of law, or worse case in front of grieving relatives....
or just operate the aircraft in a manner that means you won't ever need to argue in a court of law or in front of grieving relatives - ie don't take unnecessary risks where there is no absolute NEED to.

chopjock 15th Jul 2014 09:27

crab

ie don't take unnecessary risks where there is no absolute NEED to.
That sounds a bit like saying don't fly for pleasure or convenience then.

Vertical Freedom 15th Jul 2014 09:45

Below 15knots wind, machine parked on proven stable ground, at ground idle, collective locked, hydraulics off, push to test button pushed in; it's not going anywhere :ooh: if it does???? Something was not done from the above list :mad:

Gordy 15th Jul 2014 14:36


And just to be sure - the RFM (as approved) would overrule all of 91, 135, Ops Spec etc.

It is part of Type Certificate. If the RFM prohibits then the only way around it is an STC and RFM Supplement..
Agreed...if that is how the TCDS reads and/or the limitations section in the manual. I never flew a B3E but I have a lot of time in the AS350 BA and B2---neither of those have any limitation prohibiting the pilot from leaving the aircraft running.


or just operate the aircraft in a manner that means you won't ever need to argue in a court of law or in front of grieving relatives - ie don't take unnecessary risks where there is no absolute NEED to.
Agree to a point---the law is constantly changing. Like chopjock states....one could argue there is never a need to fly a helicopter.

Shawn Coyle 15th Jul 2014 18:57

Or something else happened - has anyone considered a hydraulics hardover???
It's happened with the hydraulics off - stick motored to full deflection and stayed there for 30 second (report given to me by the pilot involved...)

aclark79 16th Jul 2014 00:01


Choice is yours dude.....Welcome to the world of being a professional pilot...
You misunderstand me, but no worries. I've been flying commercially for a quite a while now in challenging environments.

The copy of the company manual I have seen (for the company involved in the accident) says you can't exit a running helicopter unless its for a pilot swap or done with a control hold, which is undefined, hence my first question.

Knowing the pilot involved personally and knowing both his method of flying and how he operated I can't see him ever doing something that violated the ops specs, unless the company told him to do one thing in the ops spec but then trained him to do another out on the line.

So I'm trying to understand the why.

Gordy 16th Jul 2014 04:01

No harm done and no worries.

There are many things in aviation and life in general that we struggle to understand. Sometimes it is just best to face West, drink a shot in their name, learn from what happened and move forward. The biggest dis-service we can do for a fellow aviator who died is to not learn something.

Fly smart & abide.......

RVDT 16th Jul 2014 05:22


It's happened with the hydraulics off - stick motored to full deflection and stayed there for 30 second
Unfortunately turning off the hydraulics is a flawed assumption as a few people have found out.

I note that a few condone the action on this thread.

Take a look at the "irreversible" function and how it works on some common models.

You may find that you are better off with HYD ON and friction ON.

Many years ago company policy for leaving the aircraft unattended was to NOT turn HYD OFF as they had found out the
hard way on more than one occasion!

Bull$hit and assumption will only get you so far!

Boudreaux Bob 16th Jul 2014 11:00

RVDT speaks correctly.

Leave the Hydraulics ON...that is the standard mode that it was designed to use at all times.

Lots of Friction and a Control Lock if fitted is the right way.

Gomer Pylot 17th Jul 2014 00:25

Hydraulics off, the controls can overcome even the tightest friction in some cases. Some aircraft are totally uncontrollable without hydraulics, and thus are required to have two independent systems. Some have only one system, but are only marginally controllable without it. The only time I would turn the hydraulics off in any helicopter would be for required checks or training. I've done hydraulics off landings in the AS350, but it's a handful, and you have to stay on top of it. Give it a minute or two without any intervention, and bad things may happen. With the hydraulics working and the friction tight, nothing should move. But I still wouldn't risk exiting with the engine running unless it was really, really necessary.


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