AD 97-09-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | ATP | Airworthiness Directives; Jetstream Model BAe ATP Series Airplanes |
Unsafe Condition
Improper interference between certain parts in the elevator flight control system and the propeller switch warning system could lead to reduced controllability of the airplane by requiring engagement of the standby elevator control system or causing malfunction of the pitch warning system for the propellers.
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Required Actions
Remove retaining cords on access panels to powerplant microswitches for airplanes with Jetstream Modification 35205A within 3 months after the effective date. Modify the stop lever for the bellcrank assembly of the elevator flight control system for all airplanes within 18 months after the effective date. Actions must follow Jetstream Service Bulletin ATP-27-78, Revision 1.
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Compliance Time
Within 3 months after the effective date (for airplanes with Modification 35205A) and within 18 months after the effective date (for all airplanes).
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Affected Aircraft
Jetstream Model BAe ATP series airplanes as listed in Jetstream Service Bulletin ATP-27-78, Revision 1, dated January 31, 1996.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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