Commonwealth legislation

AD/CESSNA 400/37 - Crankcase Oil Separator Return Line Check Valve - Incorporation of

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This AD requires fitting a check valve in the crankcase oil‑separator return line on specified Cessna 421B aeroplanes identified by airframe and turbocharger serial‑number ranges. It affects owners, operators and maintenance organizations who must arrange and pay for the modification to keep the aircraft airworthy. The AD delegates the detailed installation procedure to Cessna Service Letter ME73‑10 or FAA AD 73‑13‑8 and took effect 28 September 1973.

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AD/CESSNA 400/37 - Crankcase Oil Separator Return Line Check Valve - Incorporation of

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Cessna 400 Series Aeroplanes

AD/CESSNA 400/37 Crankcase Oil Separator Return Line

Check Valve - Incorporation of

8/73

Applicability: Model 421B S/Nos. 421B0260 to 421B0346 fitted with new Airesearch TH0871 turbochargers with S/No. prefixes BC or later. S/Nos. 421B0001 to 421B0259 fitted with new Airesearch TH0871 turbochargers with S/No. prefixes BC or later or with remanufactured Airesearch TH0871 turbo-chargers with S/No. prefixes BCR or later.

Document: 1. Cessna SL ME73-10; or

FAA AD 73-13-8.

Effective: 28 September 1973.

Source text

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