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 Post subject: Mandatory service bulletin ?
PostPosted: 25 Sep 2010, 00:23 
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Joined: 09/25/08
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Company: Emergency Medical Associates
Location: Huntsville, Al KMDQ
Aircraft: F33A
I was wondering what a mandatory service bulletin really means. Is this something that has to be done to the plane?

I was researching my fuel pump which is a Dukes pump in my 1988 F33A. I found that there is a Mandatory service bulletin Issued in December 1993. These pumps had Carbon veins which can shatter. I tried searching through my logs and cannot find where the pump had been replaced or inspected. I looked at the pump but had trouble reading the serial number with a mirror in place to see if it had the carbon veins or not. I assume it is the original pump with the plane. The bulletin says the pump has a 10 year TBO.

So is a mandatory service bulletin something that is truly mandatory or is it often overlooked?

Should I update my pump if it has not been done?

Thanks,
Russ


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 Post subject: Re: Mandatory service bulletin ?
PostPosted: 25 Sep 2010, 00:26 
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The only things you have to do for part 91 ops are AD's. It may be a good idea to do service bulletins but you don't have to.

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 Post subject: Re: Mandatory service bulletin ?
PostPosted: 25 Sep 2010, 06:48 
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If having a backup fuel pump that you feel is more reliable than the one you have in there, do the service bulletin. They aren't mandatory but they issue them for a reason.


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 Post subject: Re: Mandatory service bulletin ?
PostPosted: 25 Sep 2010, 07:54 
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Like almost everything in aviation, the answer is "it depends". According to an AMT article I found, there is NTSB case law which suggests that mandatory SBs are mandatory if the manufacturer requires compliance in their instructions for continued airworthiness (ICA).

http://www.amtonline.com/publication/ar ... =1&id=2522

Quote:
...Well, the recent NTSB ruling seems to back Rodger’s stand on service bulletin compliance. So I called him up and as soon as he answered the phone, I asked, “Are manufacturer’s service bulletins mandatory?” He knew it was me, and he got right to the point and gave me a clear as mud answer. “It depends. Some are, some aren’t,” he said.

I brought him up to speed on the NTSB ruling and the reason for my call. He took advantage of the opportunity to once again prove his point. He said that if the manufacturer mandates compliance with service bulletins or service instructions in its maintenance manual or instructions for continued airworthiness, then those become mandatory. The problem is that there is no consistency. Each manufacturer’s manual is different.

“The old argument of are manufacturers’ service bulletins or service instructions mandatory is gradually migrating to a moot point,” says Rodger. “These days, most manufacturers are inserting the requirement in their ICA, so it becomes mandatory.”

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 Post subject: Re: Mandatory service bulletin ?
PostPosted: 26 Sep 2010, 18:27 
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Username Protected wrote:
According to an AMT article I found, there is NTSB case law which suggests that mandatory SBs are mandatory if the manufacturer requires compliance in their instructions for continued airworthiness (ICA).

That's another thing nice about our Beechcraft airplanes. We have Maintenance/Shop Manuals - not an ICA.

AIUI, Cirrus owners are flying a life-limited airplane by virtue of their ICA.

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 Post subject: Re: Mandatory service bulletin ?
PostPosted: 26 Sep 2010, 20:06 
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Location: Ventura, CA (KOXR)
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Username Protected wrote:
According to an AMT article I found, there is NTSB case law which suggests that mandatory SBs are mandatory if the manufacturer requires compliance in their instructions for continued airworthiness (ICA).

That's another thing nice about our Beechcraft airplanes. We have Maintenance/Shop Manuals - not an ICA.

AIUI, Cirrus owners are flying a life-limited airplane by virtue of their ICA.


Hi Don-

But STC'd equipment has ICA's....

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 Post subject: Re: Mandatory service bulletin ?
PostPosted: 26 Sep 2010, 20:35 
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In a buyer's market like this one, has anyone found that potential buyers might insist on all SBs being complied with as part of the deal?


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 Post subject: Re: Mandatory service bulletin ?
PostPosted: 26 Sep 2010, 20:55 
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Company: Emergency Medical Associates
Location: Huntsville, Al KMDQ
Aircraft: F33A
Looking closer at the pump today I think it is the original with the carbon vanes. Since it is over 20 years old and has a 10 yr TBO and has the carbon veins I believe I will change it out to a new one.

I was reading the manual and it looks like the fuel tanks have to be emptied. Is there a way to do this without emptying all of the fuel. Is it possible to disconnect the lines and cap them?

Thans
Russ


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 Post subject: Re: Mandatory service bulletin ?
PostPosted: 26 Sep 2010, 21:35 
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Username Protected wrote:
That's another thing nice about our Beechcraft airplanes. We have Maintenance/Shop Manuals - not an ICA.

AIUI, Cirrus owners are flying a life-limited airplane by virtue of their ICA.


Hi Don-

But STC'd equipment has ICA's....

"But, honest - I never saw that piece of paper!"
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 Post subject: Re: Mandatory service bulletin ?
PostPosted: 27 Sep 2010, 19:52 
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Company: AirPower Insurance
Location: Phoenix, AZ (KDVT)
Aircraft: Yk50, Mu2-M
Username Protected wrote:
In a buyer's market like this one, has anyone found that potential buyers might insist on all SBs being complied with as part of the deal?


Seems like it would be tough to demand a seller do all SBs. There is a lot of nitty stuff in them.

But an airplane being sold off a Pt. 135 operation does have to do all SBs if I recall and that can be a good selling point.

TJ

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