Commonwealth legislation

AD/CIRRUS/8 - Wingtip Drain Hole

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This Airworthiness Directive requires owners/operators of specific Cirrus SR22 aircraft (serials 2334, 2420, 2438–2749) to install drain holes in the left and right outboard wingtips, following Cirrus Service Bulletin SB 2X-57-08 or a later FAA‑approved revision, to stop water ingress that can freeze and jam the aileron. It must be completed within the next 10 hours time‑in‑service or within 30 days after 7 December 2007 (whichever is first). Costs and action fall to the aircraft owner/operator; CASA issued the directive (Requirement; Compliance; Background).

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Current sections

Direct links to the current provisions in AD/CIRRUS/8 - Wingtip Drain Hole.

Cirrus Design SR20 and SR22 Series Aerop

Cirrus Design SR20 and SR22 Series Aeroplanes

AD/CIRRUS/8	Wingtip Drain Hole	2/2008 DM

Applicability:	Model SR22 aircraft, serial numbers 2334, 2420, and 2438 through 2749.
Requirement:	Install a drain hole in the left and right outboard wing tips in accordance with Cirrus Design Service Bulletin SB 2X-57-08 original issue, or later FAA approved revision.Note: FAA AD 2007-24-13 Amdt 39-15279 refers.
Compliance:	Within the next 10 hours time in service or within 30 days after 7 December 2007, whichever occurs first.
	This Airworthiness Directive becomes effective on 7 December 2007.
Background:	The FAA received reports of pilots’ inability to move the aileron control without using excessive force when flying in freezing conditions. Moisture from a prior rain shower had entered through a gap at the interface of the left and right outboard wing tips and wing structure. The moisture travelled along the aft wing shear web, accumulated below the aileron control pulley, and froze at an altitude with an outside air temperature below freezing.

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David Villiers
Delegate of the Civil Aviation Safety Authority

4 December 2007

AD/CIRRUS/8

Wingtip Drain Hole

2/2008 DM

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

Cirrus Design SR20 and SR22 Series Aerop Cirrus Design SR20 and SR22 Series Aeroplanes

Cirrus Design SR20 and SR22 Series Aeroplanes

AD/CIRRUS/8	Wingtip Drain Hole	2/2008 DM

Applicability:	Model SR22 aircraft, serial numbers 2334, 2420, and 2438 through 2749.
Requirement:	Install a drain hole in the left and right outboard wing tips in accordance with Cirrus Design Service Bulletin SB 2X-57-08 original issue, or later FAA approved revision.Note: FAA AD 2007-24-13 Amdt 39-15279 refers.
Compliance:	Within the next 10 hours time in service or within 30 days after 7 December 2007, whichever occurs first.
	This Airworthiness Directive becomes effective on 7 December 2007.
Background:	The FAA received reports of pilots’ inability to move the aileron control without using excessive force when flying in freezing conditions. Moisture from a prior rain shower had entered through a gap at the interface of the left and right outboard wing tips and wing structure. The moisture travelled along the aft wing shear web, accumulated below the aileron control pulley, and froze at an altitude with an outside air temperature below freezing.

AD/CIRRUS/8 - Wingtip Drain Hole

Plain English Summary

Deep dive

Current sections

Cirrus Design SR20 and SR22 Series Aeroplanes

Cirrus Design SR20 and SR22 Series Aeroplanes

AD/CIRRUS/8

AD/CIRRUS/8

Wingtip Drain Hole

Wingtip Drain Hole

2/2008 DM

2/2008 DM

Source text

Cirrus Design SR20 and SR22 Series Aerop Cirrus Design SR20 and SR22 Series Aeroplanes

Cirrus Design SR20 and SR22 Series Aeroplanes

AD/CIRRUS/8 AD/CIRRUS/8

AD/CIRRUS/8

Wingtip Drain Hole Wingtip Drain Hole

Wingtip Drain Hole

2/2008 DM 2/2008 DM

2/2008 DM