Commonwealth legislation

AD/CON/51 - Turbocharger Check Valve and Hose Clamps

In ForceCTH

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Commonwealth

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legislative instrument

Plain English Summary

2/10 complexity

This Airworthiness Directive requires operators of the listed Teledyne Continental TSIO‑360 engine variants to inspect turbocharger check‑valve clamps and their rubber cushioning at each maintenance release after 31 October 1987, replacing any deteriorated cushions and any check valves or hoses damaged by clamp chafing. Replacing the clamps with the new yellow‑cushion design specified in TCM Service Bulletin M87‑14 ends the recurring inspection requirement. The manufacturer says the change prevents clamp metal bands from wearing through valves or hoses and causing oil loss; operators and maintenance staff bear the inspection and replacement costs.

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AD/CON/51 - Turbocharger Check Valve and Hose Clamps

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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Teledyne Continental Motors Piston Engines

AD/CON/51 Turbocharger Check Valve and Hose Clamps 11/87

Applicability: TELEDYNE CONTINENTAL MOTORS MODELS:

TSIO-360GB - all TSIO-360LB (new) - all through S/N 316128 TSIO-360LB

(rebuilt) - all through S/N 247112 TSIO-360MB - all through S/N 317141.

Requirement: 1. Inspect the clamps retaining the turbocharger check valves and hoses for deterioration of the rubber cushioning, and replace if deteriorated.

If clamp rubber cushion was deteriorated inspect the check valve or hose where the clamp was fitted to ensure the clamp metal band did not cause chafing. If found chafed the valve(s) or hose must be replaced.

Compliance: Prior to the issue of the next maintenance release after 31 October 1987 and thereafter at each issue of a new maintenance release.

Note: Replacement of subject clamps having a cushion that is black in colour, with new clamps that incorporate a cushion that is yellow in colour is a requirement of TCM Service Bulletin No. M87-14, and constitutes terminating action.

Background: The manufacturer has found that premature deterioration of the clamp rubber cushions can allow the clamp metal band to chafe, and wear through the check valve(s) or hose and cause oil exhaustion. TCM Service Bulletin No. 87-14 introduces new clamps with oil and fuel resistant rubber cushioning.

Source text

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

1 AD/CON/51 - Turbocharger Check Valve and Hose Clamps