Airworthiness Directive 02-27201

one-time
AD 02-27201 · 2002-11-01 · airframe

Airworthiness Directives; MORAVAN a.s. Models Z-143L and Z-242L Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD) that applies to certain MORAVAN a.s. (Moravan) Models Z-143L and Z-242L airplanes. This AD requires you to modify the engine secondary vent line. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the Czech Republic. The actions specified by this AD are intended to prevent the engine crankcase ventilation lines from freezing during flight in cold weather (winter) conditions, which could result in oil leaking from the engine. Such a condition could lead to engine failure.

Which aircraft AD 02-27201 applies to

MakesMoravan A.S
ModelsZ-242L

certain

Whether AD 02-27201 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 02-27201 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.