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-   -   Proposed Airworthiness Directive – Goodrich hoist (https://www.pprune.org/rotorheads/525454-proposed-airworthiness-directive-goodrich-hoist.html)

RotorDompteur 12th Oct 2013 09:54

Proposed Airworthiness Directive – Goodrich hoist
 
Is anybody else getting a headache over this Proposed Airworthiness Directive regarding the Goodrich 44301 hoist..?
EASA PAD 13-155 1.pdf

Further background reading;
2607-S-85-Rev-0-EN.pdf

It appears to me that the result would be that incorrect use of equipment by a few will in effect cause mayor restrictions and consequences for the vast majority of hoist operators.
Such limitation would cause the cost per hoist cycle to sky rocket to a level that would ruin the economical basis for many operations.

I hope that everybody else affected are also busy writing objections to the proposal.

Any thoughts…?

RD

gnz 13th Oct 2013 03:58

"Is anybody else getting a headache over this Proposed Airworthiness Directive regarding the Goodrich 44301 hoist..?"

Yes I have (P/N 42325) !

Mine is that the test required by para 1 is not describe.
Is it the 400 Kg static load test or a cable conditioning (200 Kg in hover)?
Hope to see clarification in the final version (Due date tomorrow...).

We use to perform a cable conditioning as part of the 1 month/100 cycles (anybody else ?).Our customers isn’t very sparing!
Until now, 4 of our hoist pass the static test, and none failed the conditioning.

I don’t t think it's related to wrong usage but technical deficiencies (overload clutch), and thus perfectly relevant to issue an A.D.
F.A.A is on a similar line.

RotorDompteur 13th Oct 2013 08:45

I think that you will find answers to your questions in Goodrich ASB No. 44301-10-15, revision No. 2.


But how can you rule the overload clutch to be technical deficienciant...?
Of the many hoist that have been overhauled at Goodrich it is the first time they have seen an overload clutch showing signs of actual wear.

Based on the findings it was concluded that the probable cause have been operations outside of the approved flight envelope and/or failure to perform maintenance activities correctly (Goodrich SIL-2013-01).

The proposed hoist overhaul interval of 200 hoist lifts would have devastating consequences. Such requirement would mean that we shall send our hoist of to overhaul once a week (!)
The cost per hoist cycle to would sky rocket to a ridiculous level.

Wiggins61 16th Oct 2013 00:45

I find it strange that there are not more comments on this issue. The repetitive overruning clutch check and 200 cycle overhaul is going to cripple any operators that depend on a hoist for their bread and butter.

rustbud 22nd Oct 2013 01:40

Hoist AD
 
Totally agree with the burden this 200 cycles will introduce. What will be the O/H and parts lead time for the amount of hoists falling due at the same time

Vie sans frontieres 24th Oct 2013 06:04

Do any of the previous posters complaining about the cost of this proposed AIRWORTHINESS directive actually have to hang on the hoist? :hmm:

RotorDompteur 24th Oct 2013 19:43

Vie sans frontieres;
Can I assume that you don’t have any experience with the mentioned hoist system…?

It would be unfair to think that anybody involved in hoist operations would focus on cost before safety.

In your post you seem to imply that simply because the proposal concerns AIRWORTHINESS it is wrongful to have objections to it. But if it was as simple as that, there would be no need for EASA to send out a Proposal AD, wouldn’t you think..?

Imagine a Proposal AD for your helicopter type setting the TBO for the tail rotor blades to 20 flight hours, based on two isolated incidents where the probable cause was operations outside of the approved flight envelope and/or failure to perform maintenance activities correctly.
Would you object..?

And to answer your question; yes, all our crew members - including pilots - do get hoisted on a regular basis. :ok:

If you have experience with the hoist I would rather that we debate whether stricter tests and inspection scenarios will actually help increase safety. Especially when considering that in at least one of the mentioned incidents the wear on the overload clutch was probably cause by incorrect maintenance... :hmm:

Fly safe,

RD

gnz 20th Nov 2013 17:10

The last issue (interim) is THERE.
For us, it'll be 6 Months/300 Cycles = Clutch check with the 400 KG ish load.
Effective 4th Dec.

catseye 20th Nov 2013 21:15

does it still count a cycle each time you turn the power on??

klipspringer 4th Feb 2015 07:33

Hallo all,


We have a Goodrich hoist P/N 76370-130 for an Airbus AS350 helicopter. The hoist is brand new and never was fitted but exceeded the calendar time. Can any body help me we are looking for an overhaul facility or a company that can recertify the hoist for us.


We are a South African based company.


If anybody can assist, thank you!

RotorDompteur 4th Feb 2015 09:15

@Klipspringer

I might be wrong - but I believe that it is only Goodrich that can help you.

Cheers,

RD


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