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AD/PC-12/54 - Fuselage Overboard Vent Installation
Pilatus PC-12 Series AeroplanesPilatus PC-12 Series Aeroplanes
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Pilatus PC-12 Series Aeroplanes
| AD/PC-12/54 | Fuselage Overboard Vent Installation | 3/2009 |
|---|
| Applicability: | Model PC-12 and PC-12/45 aircraft, manufacturer serial numbers 101 through 320 inclusive. |
|---|---|
| Requirement: | Install an overboard vent for the airfoil deice system pressure regulator in accordance with the Accomplishment Instructions of Pilatus PC-12 Service Bulletin No. 30-011 original issue, or later EASA approved revision.Note: EASA AS 2009-0007 refers. |
| Compliance: | Within 3 months after 12 March 2009, unless already accomplished. |
| This Airworthiness Directive becomes effective on 12 March 2009. | |
| Background: | Reports were received of several occurrences where the Deice Pressure Regulator has vented excess hot air into the forward compartment, damaging the Oxygen Cylinder on/off cable, the Ram-Air Scoop cable, and the Environmental Control System firewall shut-off valve cable. This Directive requires the installation of a flange and scoop in the aircraft skin to vent hot air from the Deice Pressure Regulator overboard. |
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David Punshon
Delegate of the Civil Aviation Safety Authority
19 January 2009