AD 95-26-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | Jetstream Model 4101 | Airworthiness Directives; Jetstream Model 4101 Airplanes |
Unsafe Condition
Uncommanded extension of the lift spoiler in the event of loss of hydraulic pressure in the spoiler actuator due to damage to the locking mechanisms on some pistons of the spoiler actuators.
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Required Actions
Within 21 days after September 6, 1994, remove spoiler actuators per specified service bulletins and repeat every 500 landings. Prior to further flight, purge hydraulic system and install spoiler actuator marked with an 'R' after the serial number. For actuators with Lucas part numbers TY1763-01A/B, replace before 5,000 hours time-in-service or within 30 days after February 8, 1996, whichever is later, and thereafter every 5,000 hours. Installing improved actuators per Service Bulletin J41-27-037 terminates requirements.
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Compliance Time
Required as indicated, unless accomplished previously.
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Affected Aircraft
BAE Systems (Operations) Limited Model 4101 airplanes with constructors numbers 41004 through 41015 inclusive, 41018 through 41026 inclusive, 41028 through 41030 inclusive, and 41032.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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