AD 2018-07-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Pacific Aerospace Limited Airplanes |
Unsafe Condition
insufficient engagement of the couplings with the flex drive of the rudder trim drive system, which could result in an ineffective rudder and/or elevator trim system.
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Required Actions
remove the rudder and elevator drive shaft couplings and replace with new couplings to ensure proper engagement of the drive ends, as described in Pacific Aerospace Mandatory Service Bulletin PACSB/XL/085, Issue 1, dated January 8, 2018.
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Compliance Time
Before further flight
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Affected Aircraft
Pacific Aerospace Limited Model 750XL airplanes, all serial numbers equipped with modification PAC/XL/0582, and serial numbers 193 through 197, 199, 200, and 203.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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