AD 77-14-13
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | BH.125 Series 600A | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LTD Model BH-125 600A Series Airplanes |
Unsafe Condition
Possible unwanted rolling of the airplane when operating at buffet onset.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Add vortex generators to the leading edge of each wing by incorporating Hawker Siddeley Aviation, Ltd. Modification No. 252442 in accordance with Service Bulletin 57-48-(2442), including Revision 1, or an FAA-approved equivalent.
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Compliance Time
within the next 300 hours time in service after the effective date of this AD
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Affected Aircraft
HAWKER SIDDELEY AVIATION, LTD Model BH-125 Series 600A airplanes, serial numbers 25/6001-6004, 6007, 6009-6011, 6013, 6014, 6016, 6018, 6020, 6022-6026, 6032, 6034, 6038, 6040, 6044, 6046.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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