Commonwealth legislation

AD/BEECH 400/9 Amdt 1 - Flap Roller Retention

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires operators of certain Beechcraft 400A aeroplanes (serial RK-1 to RK-97 and RK-99) to carry out the actions in Beech Service Bulletin 2522 Revision 1 to inspect and replace flap roller lock washers. Compliance is required within 200 hours’ time-in-service or within 12 months after 27 March 1997. The measure responds to reports of undersized or missing washer tabs that could allow roller nuts to loosen and result in flap loss; Amendment 1 extends applicability and mandates stronger replacement washers.

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AD/BEECH 400/9 Amdt 1 - Flap Roller Retention

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Beechcraft 400 Series Aeroplanes

AD/BEECH 400/9

Amdt 1

Flap Roller Retention 4/97

Applicability: Model 400A aircraft with serial numbers RK-1 through RK-97 and RK-99. Requirement: Action in accordance with Beech Service Bulletin 2522 Revision 1.

Note: FAA AD 96-25-03 Amdt 39-9845 refers.

Compliance: Within 200 hours’ time in service or within 12 months after 27 March 1997, whichever occurs first.

This Airworthiness Directive becomes effective on 27 March 1997.

Background: The FAA received reports of undersized tabs on some lock washers, and tabs or inner tangs missing from the washers installed on the flap roller bolts. These discrepancies could result in loss of the roller attach nuts and the flap roller, which could result in loss of a flap when the aircraft is subject to load limit conditions.

Amendment 1 is issued in response to a new FAA AD which requires the replacement of certain previously -installed washers with new and stronger washers, while applicability is extended to include additional aircraft.

The original issue of this Airworthiness Directive became effective on 13 October 1994.

Source text

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

1 AD/BEECH 400/9 Amdt 1 - Flap Roller Retention