X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 06 Dec 2005 15:03:29 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m20.mx.aol.com ([64.12.137.1] verified) by logan.com (CommuniGate Pro SMTP 5.0.3) with ESMTP id 865519 for lml@lancaironline.net; Tue, 06 Dec 2005 13:19:47 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.1; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m20.mx.aol.com (mail_out_v38_r6.3.) id q.279.16b2de6 (3850) for ; Tue, 6 Dec 2005 13:18:50 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <279.16b2de6.30c7300a@aol.com> X-Original-Date: Tue, 6 Dec 2005 13:18:50 EST Subject: Re: [LML] Gear down airstream noise increase X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1133893130" X-Mailer: 9.0 Security Edition for Windows sub 5300 X-Spam-Flag: NO -------------------------------1133893130 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 12/6/2005 9:33:06 A.M. Central Standard Time, Lee.Metcalfe@jocogov.org writes: The last couple of times I have flown my LNC2 I have noticed that, with the gear down, the airstream noise from the nose gear tunnel is significantly louder than it used to be . Gear up it is normal. I have checked everything I could see in the nose gear area and in the tunnel. I see nothing different than I have seen over the last three years of flying and inspecting the plane. I put the plane on jacks and swung the gear and see nothing out of the ordinary. Any ideas of what could cause this? Moondog, Has the door on the strut that closes against the wheel well boot changed position, become cracked or loosened? Have you altered any interior or sound insulation around the nose gear wheel well? Have you tried to shake thing while extended on jacks to see if any attachment point has loosened, including over center link at the strut? Has the increased air density and cold temps set up a new situation (shrinkage) that doesn't exit in warm weather? Did you cover your oil cooler so that no cooler air is making its usual exit near the strut? How did your latest cold-weather in-flight emergency gear check sound at slow speed? Did you remove or add the bail around the rear of the nose wheel? Did you recently replace your hearing aid batteries? Is your noise canceling headset working? Has your Tinnitus been overly agitated by too much caffeine? What should I look for? A possible trip to Florida to see if the noise is temperature independent. Higher medication dosage. Ear plugs. Grayhawk -------------------------------1133893130 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

In a message dated 12/6/2005 9:33:06 A.M. Central Standard Time,=20 Lee.Metcalfe@jocogov.org writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>The last=20 couple of times I have flown my LNC2 I have noticed that, with
the gear= =20 down, the airstream noise from the nose gear tunnel is
significantly lo= uder=20 than it used to be . Gear up it is normal. I have
checked=20 everything I could see in the nose gear area and in the tunnel.
I see=20 nothing different than I have seen over the last three years of
flying=20= and=20 inspecting the plane. I put the plane on jacks and swung the
gear= and=20 see nothing out of the ordinary. Any ideas of what could=20 cause
this?

Moondog,

Has the door on the strut that closes against the wheel well boot chang= ed=20 position, become cracked or loosened?

Have you altered any interior or sound insulation around the nose=20= gear=20 wheel well?

Have you tried to shake thing while extended on jacks to see if any=20 attachment point has loosened, including over center link at the strut?

Has the increased air density and cold temps set up a new situatio= n=20 (shrinkage) that doesn't exit in warm weather?

Did you cover your oil cooler so that no cooler air is making its usual= =20 exit near the strut?

How did your latest cold-weather in-flight emergency gear check sound a= t=20 slow speed?

Did you remove or add the bail around the rear of the nose=20 wheel?

Did you recently replace your hearing aid batteries?

Is your noise canceling headset working?

Has your Tinnitus been overly agitated by too much caffeine?

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>What=20 should I look for?

A possible trip to Florida to see if the noise is temperature=20 independent.

Higher medication dosage.

Ear plugs.

Grayhawk

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