Commonwealth legislation

AD/TB20/10 - Nose Landing Gear Hydraulic Line

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Commonwealth

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires owners/operators of Aerospatiale (Socata) TB20 and TB21 aeroplanes (serial numbers up to 760, excluding S/Ns 643, 644, 752 and 753) to relocate the left‑hand nose‑gear hydraulic pipe in accordance with Aerospatiale Socata Service Bulletin No.34.

Compliance is due at the next scheduled maintenance inspection after 30 October 1987; operators bear the cost and must schedule the modification to address reported chafing by the rudder control rod that could cause a hydraulic leak and an undercarriage not‑locked condition.

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AD/TB20/10 - Nose Landing Gear Hydraulic Line

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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 Aerospatiale (Socata) TB20 (Trinidad) Series Aeroplanes

AD/TB20/10 Nose Landing Gear Hydraulic Line 11/87

Applicability: To all model TB20 and TB21 aircraft with S/Nos up to and including 760. Aircraft S/Nos. 643, 644, 752 and 753 are excluded from the requirements of this AD.

Requirement: Relocate L/H nose gear undercarriage hydraulic pipe in accordance with Aerospatiale Socata SB No.34.

Note: Bureau veritas AD 87-117(A) refers.

Compliance: Next scheduled inspection for maintenance release issue after 30 October 1987.

Background: The manufacturer has reported chafing of the L.H. nose gear hydraulic line by the rudder control rod. If the chafed line developed a leak a situation could occur where aircraft had to land with its undercarriage not locked down.

Source text

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