AD 99-01-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | British Aerospace Regional Aircraft | Jetstream Series 3101 | Airworthiness Directives: British Aerospace Jetstream Model 3101 Airplanes |
Unsafe Condition
A strength deficiency in the lower fuselage skin panels between the main and rear spar frames (Frame Stations 223 and 257.8) could result in reduced or loss of control of the airplane during maximum speed limit operations.
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Required Actions
Install additional stringers at the lower fuselage skin panels between the main and rear spar frames as per Jetstream Modification JM 7297 and British Aerospace Jetstream Service Bulletin 53-JM7297. Special flight permits may be obtained under 14 CFR 21.197 and 21.199 to operate to a location where the modification can be accomplished.
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Compliance Time
within the next 50 hours time-in-service (TIS) after the effective date of this AD, unless already accomplished
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Affected Aircraft
Jetstream Model 3101 airplanes, constructors numbers 601 through 607 and 609 through 619, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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