How about the instructions for continued airworthiness.
The new electrical load?
Bill
From: Dan Brown <[EMAIL PROTECTED]>
Reply-To: Dan Brown <[EMAIL PROTECTED]>
To: Ctech <[email protected]>
Subject: Re: [COUPERS-TECH] TSO'd vs Non TSO'd instruments: another view
Date: Sat, 10 Mar 2007 07:28:59 -0500
>----[Please read http://ercoupers.com/disclaimer.htm before
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>
>
>I think some of the confusion may be between the work that the
>aircraft owner can do as preventative maintenance, the work that an
>AI can sign off with a log book entry as a minor change, and the
>major work that requires a 337 or FAA field approval. This is a
>seperate issue from the TSO vs non TSO'd instruments.
>
>My understanding is that work on a non structural panel, such as
>installing radios, requires only a log book entry and recording of
>the new weight and balance data by an AI.
>
>Dan Brown
>
>
>John Roach wrote:
>
>>----[Please read http://ercoupers.com/disclaimer.htm before
>>following any advice in this forum.]----
>>
>>
>>Lynn.
>>Another view of the TSO puzzle from Bill Biggs. See below
>>
>>John Roach
>>N 2427H
>>
>>
>> RE: [COUPERS-TECH] Answers Re: TSO/Non-TSO
>>
>>WILLIAM BIGGS
>>Fri, 12 Jan 2007 06:08:23 -0800
>>
>>"5) You may not even need a 337. Those forms address the
>>installation process, NOT the radio itself, and are only needed at
>>all IF the installation involves a "major structural change."
>>Putting the radio into an existing hole, or hanging it beneath the
>>panel does NOT need a 337. Similarly, if you're putting a new
>>antenna into an existing antenna mount location, its not a "major
>>structural change," therefore no 337 needed. "
>>
>>Not true. Example: If you change from your cessna radio to a
>>Michael. It goes in exactly the same location but we all know they
>>require a 337. Hanging an additional radio beneath the panel
>>constitutes a change in weight and ballance however small and must
>>be recorded.
>>
>>337s now require a provision for "continued airworthiness."
>>Anything that is not in the airframe or engine specifications that
>>is added or changed constitutes a major alteration unless
>>specifically excluded in part 43.1.
>>
>>The following is considered preventative maint and is allowed but
>>only of the EXACT type:
>>
>>(31) Removing and replacing self-contained, front instrument
>>panel-mounted navigation and communication devices that employ
>>tray-mounted connectors that connect the unit when the unit is
>>installed into the instrument panel, (excluding automatic flight
>>control systems, transponders, and microwave frequency distance
>>measuring equipment (DME)). The approved unit must be
>>designed to be readily and repeatedly removed and replaced, and
>>pertinent instructions must be provided. Prior to the unit's
>>intended use, and operational check must be performed in accordance
>>with the applicable sections of part 91 of this chapter.
>>(32) Updating self-contained, front instrument panel-mounted Air
>>Traffic Control (ATC) navigational software data bases (excluding
>>those of automatic flight control systems, transponders, and
>>microwave frequency distance measuring equipment (DME)) provided no
>>disassembly of the unit is required and pertinent instructions are
>>provided. Prior to the unit's intended use, an operational check
>>must be performed in accordance with applicable sections of part 91
>>of this chapter.
>>
>>Appendix A
>>
>>Sec. A43.1
>>
>>(a) /Major alterations/--
>>(1) /Airframe major alterations./ Alterations of the following
>>parts and alterations of the following types, _when not listed in
>>the aircraft specifications issued by the FAA_, are airframe major
>>alterations:
>>
>>Bill
>>
>>
>>
>>[EMAIL PROTECTED] wrote:
>>
>>>----[Please read http://ercoupers.com/disclaimer.htm before
>>>following any advice in this forum.]----
>>>
>>>
>>> Hey Gang: Some time ago we had a discussion about TSO'd and non
>>>TSO'd instrument requirements. As I remember, one of our group
>>>came up with the FAA paragraph's that specifically spelled out the
>>>use of those items. I saved the message, but unfortunately for me,
>>>my computer bombed last fall, and I lost all of the saved messages
>>>before then.
>>> I have reviewed most of last years Tech messages, and did not
>>>find what I was looking for. Does anyone have the answer? I know
>>>there was considerable discussion about radios. but I am
>>>specifically concerned about instruments.
>>>Lynn
>>>
>>>
>>>
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