Engine — Mechanical Fuel Pump Spacer — Replacement
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must replace the mechanical fuel pump spacer with the updated part within three months of the directive's effective date. Concurrently, they must inspect the eccentric ring for wear and replace it if necessary before the next flight. Installation of the affected spacer part is prohibited from the effective date onward.
Summary
EASA Airworthiness Directive 2020-0029 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning Sauer Flugmotorenbau GmbH S 1800 and S 2100 engines. It applies to engines equipped with the BCD lever fuel pump Part Number 05 200 401B, commonly installed on powered sailplanes such as the Scheibe SF 25 C, Fournier RF 5, and Diamond H 36. The directive addresses a mechanical fuel pump spacer issue that could affect engine performance.
What changed
This new directive requires the replacement of the mechanical fuel pump spacer Part Number 05 200 410 with a serviceable spacer Part Number 05 200 410B to increase clearance and reduce friction. It also mandates inspection of the eccentric ring on the crankshaft for wear and replacement if excessive wear is found. The directive introduces these requirements to correct a condition that could lead to reduced engine power output.
Why it matters
This directive is critical for maintaining engine reliability and safety in affected powered sailplanes. Failure to comply could result in reduced fuel pressure, increased wear, and potential loss of engine power, which may compromise aircraft control. Operators, maintenance organizations, and compliance teams must ensure timely adherence to prevent unsafe conditions and maintain airworthiness.
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