AD 2021-24-19
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; DG Flugzeugbau GmbH Gliders |
Unsafe Condition
an error in the engine control unit (ECU) software that can cause brief injection of fuel into one cylinder when the ECU is activated
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
update the ECU software to software version V517 Revision 8 in accordance with the Actions in Solo Kleinmotoren GmbH Service Bulletin No. 4600-11, Ausgabe 1 (English translation: Issue 1), dated August 19, 2019. Do not install ECU software version V517 Revision 7 or earlier on any glider with a Solo Kleinmotoren GmbH Solo Model 2625 02i engine.
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Compliance Time
Within 3 months after the effective date of this AD
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Affected Aircraft
DG Flugzeugbau GmbH Model DG-500MB and DG-1000M gliders, all serial numbers, certificated in any category, with a Solo Kleinmotoren GmbH Solo Model 2625 02i engine installed
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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