Engines – Beta Switch – Replacement
Superseded. Comply with 2019-0089, which replaces this document.
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Aircraft Industries L 410 UVP-E20 and L 410 UVP-E20 CARGO aeroplanes with GE Aviation Czech H80-200 engines must inspect and adjust the engine push-pull control and replace the Beta switch P-S-2 with P-S-2A within 25 flight hours, 20 flight cycles, or 30 days after 2018-04-19, whichever occurs first. Any deficiencies found during inspection must be corrected before the next flight. Installation of the older Beta switch P-S-2 is prohibited after the effective date.
Summary
EASA Airworthiness Directive 2018-0075 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting GE Aviation Czech H80-200 engines installed with Avia Propeller AV-725 propellers on Aircraft Industries L 410 UVP-E20 and L 410 UVP-E20 CARGO aeroplanes. It addresses a safety issue related to the Beta switch on these engines that could lead to loss of control of the aircraft. The directive mandates inspection, adjustment, and replacement of the Beta switch to ensure continued safe operation.
What changed
EASA Airworthiness Directive 2018-0075 introduces a mandatory modification requiring the replacement of the Beta switch Part Number P-S-2 with an improved version P-S-2A on affected engines. It also requires inspection and adjustment of the engine push-pull control and prohibits installation of the older Beta switch on engines after the effective date. This AD is a new regulation responding to a fatal accident investigation.
Why it matters
This directive is critical for aviation professionals because it addresses a potentially fatal control system malfunction that could cause reduced control or loss of control of the aircraft. Operators and maintenance organizations must comply to ensure the safety and airworthiness of affected L 410 UVP-E20 aircraft equipped with these engines and propellers. Compliance helps prevent accidents and ensures regulatory adherence.
Get the next one by email
New ADs and bulletins for Ge Aviation Czech H75, H80, H85, Aircraft Industries L 410 UVP-E20 and Aircraft Industries L 410 UVP-E20 CARGO, summarized like this page, every Monday.