Commonwealth legislation

AD/BEECH 1900/17 - Stabilon Attachment Angle

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Commonwealth

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legislative instrument

Plain English Summary

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Requires operators of Beechcraft 1900D aeroplanes (serial numbers UE-1 to UE-215) to inspect stabilon attachment angles for correct thickness (.090 in) and to either perform repetitive crack inspections or replace undersized (.071 in) angles with .090 in parts. The aim, as stated, is to prevent stabilon separation. Owners/operators pay for inspections, repairs and downtime; the Civil Aviation Safety Authority mandates compliance and delegates procedural detail to Beechcraft Mandatory Service Bulletin 2651 and the referenced FAA AD.

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AD/BEECH 1900/17 - Stabilon Attachment Angle

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Beechcraft 1900 Series Aeroplanes

AD/BEECH 1900/17 Stabilon Attachment Angle 9/97

Applicability: Model 1900D aircraft with serial numbers UE-1 through UE-215.

Requirement: 1. Inspect the left and right stabilon attachment angles for proper thickness, which is

.090 inch thick, in accordance with the Accomplishment Instructions section of Beechcraft Mandatory Service Bulletin (MSB) 2651.

2. If the attachment angles are not the correct thickness and measure only .071 inch thick, accomplish the following in accordance with the Accomplishment Instructions section of Beechcraft MSB 2651:

Repetitively inspect the stabilon attachment angles for cracks.

b. If cracks are evident, replace the attachment angles with attachment angles of the correct thickness (.090 inch thick); and,

c. If no cracks are evident during any of the inspections required by this directive, replace the .071 inch thick attachment angles with .090 inch thick attachment angles.

Note: FAA AD 97-10-14 Amdt 39-10026 refers.

Compliance: 1. Unless already accomplished, within 50 hours time in service after 16 July 1997.

a. At intervals not to exceed 50 hours time in service.
b. Before further flight.
c. Within 600 hours time in service after 16 July 1997.

Note: Replacing the .071 inch thick stabilon attachment angles with .090 inch thick attachment angles, terminates the repetitive inspection requirements of this Directive.

Background: The FAA received reports of the affected aircraft having the incorrect size stabilon attachment angles fitted. The actions specified by this Directive are intended to prevent separation of the stabilon from the aircraft, which could cause loss of aircraft stability during flight.

Source text

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

1 AD/BEECH 1900/17 - Stabilon Attachment Angle