Today's Message Index:
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1. 09:01 AM - (Aucountry@aol.com)
2. 11:38 PM - Fw: New FAA Airworthiness Concern (Aucountry@aol.com)
3. 11:48 PM - Re: Fw: New FAA Airworthiness Concern (Gil Alexander)
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--> TeamGrumman-List message posted by: Aucountry@aol.com
In a message dated 08/07/03 12:44:20 PM, rblevy@mindspring.com writes:
> To be legal with a polished prop, you would have to get a procedure for
> corrosion prevention without paint approved by the Aircraft Certification Office
> covering the brand of prop you have, and that's a major league effort.
>
At antique fly-ins, I see MANY antique aircraft with polished props. Does
this mean that all of them will need to be painted also?
Message 2
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| Subject: | Fwd: New FAA Airworthiness Concern |
--> TeamGrumman-List message posted by: Aucountry@aol.com
Any thoughts out there among Team Memebers?
From: "Ron Levy" <rblevy@mindspring.com>
Subject: New FAA Airworthiness Concern
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The FAA is hot on the trail of a potential issue on AA/AG-5A/B's. If you
know of any case of the following occurring, please forward whatever
information you have to AYA Technical Director Jeff Simon at tech@aya.org --
NOT to the Gang. Jeff will collate and work with the FAA.
FAA Description of Airworthiness Concern
An owner/operator reported that during a routine inspection, the horizontal
stabilizer was noted to be "loose." Further inspection revealed cracks in
all four corners of the horizontal stabilizer forward-spar-carry-through
torque box. Additionally, a vertical torque box member was cracked and
"buckled" adjacent to the attachment. The concern is two-fold. First, there
is concern that the condition would not be discovered during routine annual
inspection. Second, if uncorrected this condition would likely result in
control difficulties. Total loss of control is possible.
Request for Information:
Your response to these questions is highly valued and significant in our
determination of possible future corrective action. Please be as complete as
possible when you reply.
7 Would the above-described buckling be discovered during routine annual or
100-hour inspections? Have you seen buckling here? If yes, did the aircraft
have any other damage or damage history (i.e. hard landing, wing tip strike,
broken tail tie down, etc)?
7 Would the above-described cracks be discovered during routine annual or
100-hour inspections? Have you seen cracks here? If yes, did the aircraft
have any other damage or damage history (i.e. hard landing, wing tip strike,
broken tail tie down, etc)?
7 Have you found loose forward stub spar or vertical stabilizer attachment
bolts? If so, please specify.
7 If you have seen buckling, cracking and/or loose bolts please advise model
number, serial number, time in service and date found.
7 Please provide any suggested wording changes for the maintenance manual
regarding inspection of this are to improve detection of cracks and/or
buckling in this structure.
7 Please provide any economic data associated with increased attention to
visual inspections in this area during annual inspections.
Message 3
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| Subject: | Re: Fwd: New FAA Airworthiness Concern |
--> TeamGrumman-List message posted by: Gil Alexander <gilalex@earthlink.net>
Gary,
Isn't this easily accessible, and viewable, when you take off the
two ELT access panels? I am I mixing up the "torque box" with something else??
...gil in Tucson
At 02:38 AM 8/9/2003 -0400, you wrote:
>--> TeamGrumman-List message posted by: Aucountry@aol.com
>
>Any thoughts out there among Team Memebers?
>
>From: "Ron Levy" <rblevy@mindspring.com>
>To: "Grumman Gang" <grumman-gang@lists.xmission.com>
>Subject: New FAA Airworthiness Concern
>Date: Thu, 7 Aug 2003 21:50:57 -0400
>List-Archive: <http://www.grumman.net/archive/>
>List-Subscribe:
><mailto:grumman-gang-request@lists.xmission.com?subject=subscribe>
>List-Unsubscribe:
><mailto:grumman-gang-request@lists.xmission.com?subject=unsubscribe>
>List-Help: <mailto:grumman-gang-request@lists.xmission.com?subject=help>
>
>The FAA is hot on the trail of a potential issue on AA/AG-5A/B's. If you
>know of any case of the following occurring, please forward whatever
>information you have to AYA Technical Director Jeff Simon at tech@aya.org --
>NOT to the Gang. Jeff will collate and work with the FAA.
>
>FAA Description of Airworthiness Concern
>
>An owner/operator reported that during a routine inspection, the horizontal
>stabilizer was noted to be "loose." Further inspection revealed cracks in
>all four corners of the horizontal stabilizer forward-spar-carry-through
>torque box. Additionally, a vertical torque box member was cracked and
>"buckled" adjacent to the attachment. The concern is two-fold. First, there
>is concern that the condition would not be discovered during routine annual
>inspection. Second, if uncorrected this condition would likely result in
>control difficulties. Total loss of control is possible.
>
>Request for Information:
>
>Your response to these questions is highly valued and significant in our
>determination of possible future corrective action. Please be as complete as
>possible when you reply.
>
>7 Would the above-described buckling be discovered during routine annual or
>100-hour inspections? Have you seen buckling here? If yes, did the aircraft
>have any other damage or damage history (i.e. hard landing, wing tip strike,
>broken tail tie down, etc)?
>
>7 Would the above-described cracks be discovered during routine annual or
>100-hour inspections? Have you seen cracks here? If yes, did the aircraft
>have any other damage or damage history (i.e. hard landing, wing tip strike,
>broken tail tie down, etc)?
>
>7 Have you found loose forward stub spar or vertical stabilizer attachment
>bolts? If so, please specify.
>
>7 If you have seen buckling, cracking and/or loose bolts please advise model
>number, serial number, time in service and date found.
>
>7 Please provide any suggested wording changes for the maintenance manual
>regarding inspection of this are to improve detection of cracks and/or
>buckling in this structure.
>
>7 Please provide any economic data associated with increased attention to
>visual inspections in this area during annual inspections.
>
>
77 Tiger, N28478, at 57AZ
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