1AD/AL 250/18 - Compressor Bleed Valve Orifice - Installation

---

meta-content-style-type: text/css meta-content-type: application/xhtml+xml; charset=utf-8 meta-description: CASA Airworthiness Directive meta-generator: Aspose.Words for .NET 22.10.0 meta-keywords: Issue 7/1973,Turbine engines,Allison Turbine Engines - 250 Series,Compressor Bleed Valve Orifice - Installation,18 title: Airworthiness Directive - AD/AL 250/18 - Compressor Bleed Valve Orifice - Installation

?xml version="1.0" encoding="utf-8" standalone="no"?>

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 

Image unavailable in extracted text Allison Turbine Engines - 250 Series

 

AD/AL 250/18 Compressor Bleed Valve Orifice - Installation 7/73

Applicability: All 250-C18A series fitted with bleed valves. P/N 6854607 or 6870460 installed in Hughes 369H Helicopters.

 

Document: Allison 250 CEB 107.

 

Compliance: Before 31 July 1973.