AD 2008-16-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Diamond | Aircraft Industries GmbH Model DA 42 | Airworthiness Directives; Diamond Aircraft Industries GmbH Model DA 42 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Diamond Aircraft Industries GmbH Model DA 42 Airplanes |
Unsafe Condition
The original designed bellcrank for the aileron control system in the wing needed to be installed with slightly bent rod ends during production to avoid friction and possible chafing. This creates the risk of replacement parts being installed during maintenance without being bent or not being bent correctly, leading to chafing damage of the aileron control system and consequent loss of control of the aircraft.
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Required Actions
Replace the aileron bellcrank, P/N DA4-2717-50-00, with the improved design aileron bellcrank, P/N DA4-2717-50-00-01, and replace any bent rod ends, P/N DAI-9027-00-01, with straight rod ends. Do not install any aileron bellcrank, P/N DA4-2717-50-00, or bent rod ends, P/N DAI-9027-00-01, after September 17, 2008.
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Compliance Time
Within 200 hours time-in-service (TIS) after September 17, 2008.
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Affected Aircraft
Diamond Aircraft Industries GmbH Model DA 42 airplanes, all serial numbers, with aileron bellcranks part number (P/N) DA4-2717-50-00 installed, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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