mandatory SB's

Jetdriver125

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question your customer comes in with a Mandatory SB for the airplane to maintain its current airworthiness you have to comply with that as if it was an AD AM I Right or Wrong?
Thanks
 

avbug

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Simply because a manufacturer places the words "mandatory" next to a service bulletin does not make it mandatory. An airworthiness directive does that. The FAA has consistently held that if a manufacturer wishes for that procedure, inspection, or maintenance to be mandatory, then it must submit to the FAA and request it be issued in the form of an AD. Until then, it's not "mandatory."

That said, consider the civil legal implications in which an attorney may use a "mandatory" SB as leverage against a jury that doesn't know any better. After all, to a jury, "mandatory" sounds fairly cut and dried.

Many manufacturers use service bulletins, especially the "mandatory" service bulletins, as ways of leveraging their own liability onto the customer. The idea is that the manufacturer hopes to limit it's own liability and expense by pushing it on the customer as "mandatory," even though the manufacturer knows full well that the item really isn't mandatory and can't be inforced.

From an aircraft value point of view, it's a good idea to be able to show compliance with all SB's.
 

Jetdriver125

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Thanks That was my take on it as well it was just brought up by someone and I think from a Lawyer stand point all SB's should be complied with and that also leaves no Loop holes for the insurance companies
 

Tired Soul

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If the manufacturer states the SB to be mandatory then non-compliance would make the aircraft un-airworthy correct?
Essentially a mandatory SB and a AD have the same effect, difference being one is issued by the manufacturer and the other by Aviation Authorities.
At least that is how I understand it to be.
 

avbug

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If the manufacturer states the SB to be mandatory then non-compliance would make the aircraft un-airworthy correct?
NO!! Absolutely not. The manufacturer doesn't have this authority. If the manufacturer wishes this bulletin to become mandatory, then the manufacturer must petition the FAA to make it an airworthiness directive. Until then, it's a nice idea, but is not required by the regulation.

Essentially a mandatory SB and a AD have the same effect,
They do not.

difference being one is issued by the manufacturer and the other by Aviation Authorities.
The FAA has the authority to make it a legally required, and thus mandatory requirement. The manufacturer does not.
 

Balou

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A Mandatory SB MAY BE required to keep a warranty good. But Avbug is correct, it is not required for Airworthiness
 

STAL6

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If the aircraft is operated under 91.409(f)(3) for it's inspection program (which is an option that applies to large airplanes that are turbine powered and turbine powered rotorcraft) than a Mandatory SB issued by the manufacturer must be complied with.

Stal6
 

avbug

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If the aircraft is operated under 91.409(f)(3) for it's inspection program (which is an option that applies to large airplanes that are turbine powered and turbine powered rotorcraft) than a Mandatory SB issued by the manufacturer must be complied with.
Incorrect. Only if the manufacturer includes the service bulletin as part of the approved inspection program, and then only when it's part of the official FAA documentation (eg, part of the maintenance manual and an accepted document). Simply stipulating a service bulletin outside the program, after the fact, is insufficient to require it's inclusion.

The term "mandatory" has no meaning with respect to service bulletins or with respect to the inspection. This is an invented term, something manufacturers tack onto their service bulletins for fear of liability, hoping it carries some import as to why they want it done. The manufacturer doesn't want to go to the AD stage because this is a liability against purchase of the product (nobody wants a product with a lot of AD's attached to it), yet doesn't want to face the inevitable liability attached to the product...and comes up with service bulletins. When the manufacturer wishes to stress how badly they want the user to comply, they make it "mandatory." It carries the same weight as me telling you I've imposed a mandatory fine of one dollar to read my posts. You're going to comply? No? Why?

Because there's no legal requirement to do so. In the aviation maintenance world, this legal requirement comes in the form of an AD.

One who elects to enter a maintenance program for turbine powered aircraft as in 91.409(f) may be lazy enough to simply take an off the shelf manufacturer program, but the regulation also makes clear that the user can design his or her own program in any form (91.409(f)(4)), and it need only be FAA approved to become that operators own official inspection program.

There's no reason one need be subject to a "mandatory" SB unless chooses to be.
 

STAL6

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Thats right. If the Manufacturer includes sevice bulletins as part of the approved inspection program and you are operating 91.409(f)(3) than you must comply.
Ch.5 will call it out.

I don't know why you would say "lazy" for that type of inspection program.
Not everyone needs to operate with a customized program. For many (f)(3) works best.
 

avbug

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A factory program is a lazy way to get in the game; take something off the shelf and do it. Nothing wrong with that; just lazy. Certainly one can't complain about the requirments of the program when all one must do is write any program one wishes and get it submitted to the FAA, instead.

A manufacturer's program as spelled out in the current maintenance publications cannot simply ammend a "mandatory" SB and make it part of the requirements for the inspection. That change still requires FAA approval.
 

gvtech

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Mandatory Service Bulletins

I recommend following the manufacturers program on any biz jet. If I'm researching an aircraft to buy I would recommend the one on the factory program over one on an operators own designed program. In my opinion the factory program maintained aircraft is worth more in a non airline world. So if the mandatory SB ends up in Chap 5, comply.

GV
 

erj-145mech

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But that still doesn't mean that non compliance with a "mandatory service bulletin" affects the airworthiness of the aircraft. Most of us agree that its a good idea to c/w the bulletin, but the airplane is just as airworthy without compliance.
 

STAL6

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The point I'm trying to make is that there is not enough information in the original post to be able to say "no, you do not have to comply". There may be more to it than that and it may require some research before you make the call.
The following is from chapter 5-00-00 of a current a/c maintenance manual.
Active SBs are part of the recommended inspection program and are listed in the Special Inspection Requirements of this chapter. Any SBs released after publication of this index are active and will be added to this index in the next revision.
So if I was operating under the OEM program I would have to comply with all SBs issued by them.

Stal6
 

NW_Pilot

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During an Export C of A inspection I have had aircraft get rejected because a S.B. or a Few were not completed as it was a requirement to meet it TC for Export... Complied with the S.B. and Export C of A Was Issued by the DAR.
 

avbug

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In the case of an export, however, the matter of a manufacturer's election to include the word "mandatory" is irrelevant, and the requirement for compliance varies, as well with the destination, and sometimes with the origin. This is not the case for an import.
 

NW_Pilot

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In the case of an export, however, the matter of a manufacturer's election to include the word "mandatory" is irrelevant, and the requirement for compliance varies, as well with the destination, and sometimes with the origin. This is not the case for an import.
Thanks Avbug I called one of the DAR's I use and asked him to clarify this last night he said most country's require all manufacture SB's to be complied with. When he gets the application for the Export C of A he pulls the country's requirements for Airworthiness and import requirements.

Rhight now I am waiting on 5 SK152-24A kits from cessna so we can Export a few 150's and now that 4 more SB's were issued in the last month another parts order was placed but parts are again back orderd.

My mechanic is loving the work...
 

avbug

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You'll find that most DAR's who are putting their name to the application will want the work done to cover themselves, as the actual status of the application depends not so much on having the service bulletins complied with as it does on what the DAR feels comfortable signing.
 
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