Superseded by FAA AD 2020-18-08

Published: Jul 5, 2019
Effective: Jul 5, 2019
Deadline: Jul 5, 2019

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators must inspect the engine air induction hose within 10 hours time-in-service after July 5, 2019, and replace any hose showing separation or crinkling sounds before further flight. If no issues are found, the hose must still be replaced within 50 hours time-in-service. Installation of hoses marked with code 1Q18 is prohibited after the AD's effective date.

Summary

FAA Airworthiness Directive 2019-12-18 is a final rule addressing Robinson Helicopter Company Model R44 II helicopters. It mandates inspection and replacement of the engine air induction hose part number A785-31 due to reports of separation between the hose's outer and inner layers. This condition could lead to engine airflow blockage and potential engine stoppage.

What changed

This new airworthiness directive requires operators of affected Robinson R44 II helicopters to inspect the engine air induction hose within 10 hours time-in-service and replace any hose showing separation or a crinkling sound. It prohibits installation of hoses marked with manufacturing code 1Q18 after the effective date. The directive also extends applicability to helicopters with hoses installed after April 30, 2018.

Why it matters

This AD is critical for aviation professionals because the hose separation can cause engine airflow blockage, leading to engine failure and loss of helicopter control. Compliance ensures continued airworthiness and safety of Robinson R44 II helicopters. Maintenance and compliance teams must prioritize inspection and replacement to mitigate this safety risk promptly.

More for Robinson R44 (Raven)

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