AD 98-11-17
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | DG Flugzeugbau GmbH | DG-400 | Airworthiness Directives; Glaser-Dirks Flugzeugbau GmbH Model DG-400 Gliders |
Unsafe Condition
Failure of the Bosch electrical system regulator, part number 0212920001, could result in smoke entering the cockpit with consequent passenger injury.
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Required Actions
Replace the Bosch electrical system regulator, part number 0212920001, with a type 4 E 26 regulator in accordance with DG Flugzeugbau GmbH Z 33 Conversion Kit Saprisa regulator Installation Instructions and Glaser-Dirks Drawing 4 E 26.
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Compliance Time
within the next 4 calendar months after the effective date of this AD
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Affected Aircraft
Glaser-Dirks Flugzeugbau GmbH Model DG-400 gliders, all serial numbers
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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