AD 2007-11-21
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Diamond | Aircraft Industries GmbH Model DA 40 | Airworthiness Directives; Diamond Aircraft Industries GmbH Model DA 40 Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Diamond Aircraft Industries GmbH Model DA 40 Airplanes |
Unsafe Condition
Abnormal manufacturing variations of the universal joints in combination with mechanical wear can lead to a joint failure and subsequent disconnection between selector and the fuel valve. This results in a loss of capability to select the fuel tank for supply.
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Required Actions
Inspect the universal joint in accordance with Diamond Aircraft Industries GmbH Mandatory Service Bulletin No. MSB 40-030/3. Repetitively inspect thereafter at intervals not to exceed 50 hours time-in-service (TIS).
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Compliance Time
Within 15 hours TIS after July 9, 2007, or when the airplane reaches a total of 200 hours TIS, whichever occurs later.
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Affected Aircraft
Diamond Aircraft Industries GmbH Model DA 40 airplanes, serial numbers 40.006 up to and including 40.079, 40.081 up to and including 40.083, 40.201 up to and including 40.417, with fuel shaft part number D41-2823-20-00 Rev ``-'' installed.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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