AD 76-06-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | BH.125 Series 400A | Airworthiness Directives; HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 Airplanes |
| aircraft | Textron Aviation Inc. | BH.125 Series 600A | Airworthiness Directives; HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A | Airworthiness Directives; HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A-522 | Airworthiness Directives; HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A/R-522 | Airworthiness Directives; HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A/S-522 | Airworthiness Directives; HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A | Airworthiness Directives; HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A/R | Airworthiness Directives; HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A/RA | Airworthiness Directives; HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 400A | Airworthiness Directives; HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 Airplanes |
Unsafe Condition
Failure of the original bolts attaching the outboard hinge bracket to the upper airbrake assembly (R/H and L/H) and loss of an airbrake in flight.
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Required Actions
Remove installed bolts P/N S21A102-4E or A102-4EDHS614D (3 per bracket) and install new bolts P/N S21A102-5E or S21DHS1432-5E in accordance with specified service bulletins. Replace P/N S21A102-5E bolts at intervals not exceeding 500 hours time in service with P/N S21DHS1432-5E bolts. For spare airbrake assemblies, replace original bolts before installation.
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Compliance Time
Within the next 10 hours time in service after the effective date of this AD or upon the accumulation of 500 hours total time in service on the airbrake assembly, whichever occurs later.
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Affected Aircraft
HAWKER SIDDELEY AVIATION LTD Model DH/BH 125 airplanes, all series, certificated in all categories.
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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