Commonwealth legislation

AD/AC/94 - Airspeed in Turbulence

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This airworthiness directive orders owners/operators of specified Twin Commander models and serial numbers to attach a placard to the windshield centre post and to adopt a flight‑manual amendment per Twin Commander Service Bulletin 220. Certificate of Registration holders receive a separate direction under CAR 138(3). Compliance is required within 50 hours’ time in service after 25 October 1995. CASA says the measure implements an FAA AD and does not change any operating speed limits; it increases pilot warning and documentation duties.

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AD/AC/94 - Airspeed in Turbulence

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes

AD/AC/94 Airspeed in Turbulence 13/95 DM

Applicability: The following aircraft models and serial numbers: Models Serial Numbers

680T and 680V 1473 through 1720

680W 1721 through 1850

681 6001 through 6072

690 11001 through 11079

690A 11100 through 11344

690B 11350 through 11566

690C 11600 through 11735

690D 15001 through 15042

695 95000 through 95084

695A 96000 through 96100

695B 96201 through 96208

Requirement: Attach a placard on the windshield centre post in accordance with the Accomplishment Instructions of Twin Commander Service Bulletin 220.

A separate direction under CAR 138(3) for incorporation of the applicable flight manual amendment is being provided to Certificate of Registration holders.

Note: FAA AD 95-19-18 Amdt 39-9379 refers.

Compliance: Within 50 hours’ time in service after 25 October 1995.

Background: This Directive is issued in response to the recent issue of the above referenced AD by the FAA. Although no limitations have changed, the country of origin regulatory authority requires a placard and a flight manual amendment to warn the pilot to observe turbulent air penetration speeds.

Source text

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

1 AD/AC/94 - Airspeed in Turbulence