X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 01 May 2013 09:42:53 -0400 Message-ID: X-Original-Return-Path: Received: from nk11p08mm-asmtp002.mac.com ([17.158.58.247] verified) by logan.com (CommuniGate Pro SMTP 6.0.4) with ESMTP id 6236792 for lml@lancaironline.net; Wed, 01 May 2013 08:32:41 -0400 Received-SPF: pass receiver=logan.com; client-ip=17.158.58.247; envelope-from=gw5@me.com Received: from [198.18.157.121] (unknown [190.248.8.82]) by nk11p08mm-asmtp002.mac.com (Oracle Communications Messaging Server 7u4-26.01(7.0.4.26.0) 64bit (built Jul 13 2012)) with ESMTPSA id <0MM400I3MDHE7R30@nk11p08mm-asmtp002.mac.com> for lml@lancaironline.net; Wed, 01 May 2013 12:32:04 +0000 (GMT) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:5.10.8626,1.0.431,0.0.0000 definitions=2013-05-01_04:2013-04-30,2013-05-01,1970-01-01 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 ipscore=0 suspectscore=0 phishscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=6.0.2-1302030000 definitions=main-1305010090 From: George Wehrung Content-type: multipart/alternative; boundary="Apple-Mail=_07B14266-8FA1-45C2-BF97-26251C32027C" X-Original-Message-id: <407FF8CE-388B-4A65-A849-3D815FFFD07E@me.com> MIME-version: 1.0 (Mac OS X Mail 6.3 \(1503\)) Subject: Re: [LML] ATSB report - Amateur-buit aircraft X-Original-Date: Wed, 01 May 2013 07:32:04 -0500 References: X-Original-To: Lancair Mailing List In-reply-to: X-Mailer: Apple Mail (2.1503) --Apple-Mail=_07B14266-8FA1-45C2-BF97-26251C32027C Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 Interesting Patrick, thanks for sharing. This data seems very similar = to US data. On May 1, 2013, at 7:06 AM, Patrick Bridge = wrote: >=20 >=20 > Amateur-built aircraft >=20 > The Australian Transport Safety Board (ATSB) has = published a report titled Amateur-built aircraft Part 2: Analysis of = accidents involving VH-registered non-factory-built aeroplanes = 1988-2010. The ATSB investigated the safety history of amateur-built = aircraft in Australia through analysis of accident data held in the = ATSB=92s occurrence database from 1988 to 2010. Comparisons were made = between accidents involving amateur-built aircraft and those involving = similar factory-built aircraft to help identify whether the rate and = types of accidents differed between these two groups of aircraft. What = the ATSB found was: >=20 > =B7 Amateur-built aircraft had an accident rate three times = higher than comparable factory-built certified aircraft conducting = similar flight operations between 1988 and 2010. The fatal and serious = injury accident rate was over five times higher in amateur-built = aircraft, in particular due to relatively more serious injury accidents. >=20 > =B7 The pilots of amateur-built aircraft involved in = accidents were significantly more experienced overall than factory-built = aircraft accident pilots. However, they were significantly less = experienced on the aircraft type that they were flying at the time of = the accident. >=20 > =B7 Over half of the accidents were precipitated by = mechanical events, which were mainly complete or partial engine = failures. Following the amateur-built phase one test period, mechanical = failures were still significantly more common when compared with = factory-built aircraft. A quarter of accidents were from loss of = aircraft control. Structural failures were not common precursors. >=20 > =B7 Collision with terrain and forced landing accidents were = more frequent in amateur-built aircraft. Collisions with terrain, hard = landings, and runway excursions were more likely to result in a serious = injury from an amateur-built aircraft accident than for factory-built = accidents. >=20 > The safety messages are:=20 >=20 > =B7 Builders of amateur-built aircraft should select, install = and maintain aircraft engines carefully as engine issues are the most = likely reason why an accident will occur. Careful consideration to = occupant protection at the time of building is also encouraged as = serious injuries have been disproportionally more common.=20 >=20 > =B7 Owners of amateur-built aircraft should ensure they have = adequate training in the same type of aircraft before operating the = aircraft they have built, or purchased second-hand. >=20 > =20 >=20 >=20 --Apple-Mail=_07B14266-8FA1-45C2-BF97-26251C32027C Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 Interesting Patrick, thanks for = sharing.  This data seems very similar to US = data.




On = May 1, 2013, at 7:06 AM, Patrick Bridge <patrickbridge@hotmail.com>= ; wrote:



Amateur-built = aircraft


 <att6e19f.jpg>The Australian Transport Safety = Board (ATSB) has published a = report titled Amateur-built aircraft Part 2: = Analysis of accidents involving VH-registered non-factory-built = aeroplanes 1988-2010. The ATSB investigated the safety = history of amateur-built aircraft in Australia through analysis of = accident data held in the ATSB=92s occurrence database from 1988 to = 2010. Comparisons were made between accidents involving amateur-built = aircraft and those involving similar factory-built aircraft to help = identify whether the rate and types of accidents differed between these = two groups of aircraft. What the ATSB found was:


=B7 <= font size=3D"2" style=3D"font-size: 10pt; ">Amateur-built aircraft had an accident rate three times = higher than comparable factory-built certified aircraft conducting = similar flight operations between 1988 and 2010. The fatal and serious = injury accident rate was over five times higher in amateur-built = aircraft, in particular due to relatively more serious injury = accidents.

=B7 <= font size=3D"2" style=3D"font-size: 10pt; ">The pilots of amateur-built aircraft involved in = accidents were significantly more experienced overall than factory-built = aircraft accident pilots. However, they were significantly less = experienced on the aircraft type that they were flying at the time of = the accident.

=B7 <= font size=3D"2" style=3D"font-size: 10pt; ">Over half of the accidents were precipitated by = mechanical events, which were mainly complete or partial engine = failures. Following the amateur-built phase one test period, mechanical = failures were still significantly more common when compared with = factory-built aircraft. A quarter of accidents were from loss of = aircraft control. Structural failures were not common = precursors.

=B7 <= font size=3D"2" style=3D"font-size: 10pt; ">Collision with terrain and forced landing accidents were = more frequent in amateur-built aircraft. Collisions with terrain, hard = landings, and runway excursions = were more likely to result in a serious injury from an amateur-built = aircraft accident than for factory-built = accidents.

The safety messages are: 


=B7 Builders of amateur-built aircraft should select, install = and maintain aircraft engines carefully as engine issues are the most = likely reason why an accident will occur. Careful consideration to = occupant protection at the time of building is also encouraged as = serious injuries have been disproportionally more common. 

=B7 Owners of amateur-built aircraft should ensure they have = adequate training in the same type of aircraft before operating the = aircraft they have built, or purchased = second-hand.

 


= --Apple-Mail=_07B14266-8FA1-45C2-BF97-26251C32027C--