AD 81-06-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | BH.125 Series 400A | Airworthiness Directives; BRITISH AEROSPACE Model HS/DH/BH- 125 Airplanes Series -3A/R, -3A/RA, and -3A/RA 400A and 600A |
| aircraft | Textron Aviation Inc. | BH.125 Series 600A | Airworthiness Directives; BRITISH AEROSPACE Model HS/DH/BH- 125 Airplanes Series -3A/R, -3A/RA, and -3A/RA 400A and 600A |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A | Airworthiness Directives; BRITISH AEROSPACE Model HS/DH/BH- 125 Airplanes Series -3A/R, -3A/RA, and -3A/RA 400A and 600A |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A/R | Airworthiness Directives; BRITISH AEROSPACE Model HS/DH/BH- 125 Airplanes Series -3A/R, -3A/RA, and -3A/RA 400A and 600A |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A/RA | Airworthiness Directives; BRITISH AEROSPACE Model HS/DH/BH- 125 Airplanes Series -3A/R, -3A/RA, and -3A/RA 400A and 600A |
| aircraft | Textron Aviation Inc. | DH.125 Series 400A | Airworthiness Directives; BRITISH AEROSPACE Model HS/DH/BH- 125 Airplanes Series -3A/R, -3A/RA, and -3A/RA 400A and 600A |
| aircraft | Textron Aviation Inc. | HS.125 Series 600A | Airworthiness Directives; BRITISH AEROSPACE Model HS/DH/BH- 125 Airplanes Series -3A/R, -3A/RA, and -3A/RA 400A and 600A |
Unsafe Condition
Restricted movement of the flap control unit input lever and chafing of the left engine fuel line due to possible interferences.
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Required Actions
Within 50 hours time in service after the effective date, inspect for chafing of the left engine fuel feed line and check clearance between the fuel feed line and flap control unit input lever per British Aerospace Service Bulletin 28-69, Revision 1. If chafing or damage is found, replace the fuel line before further flight. If clearance is less than 0.15 inches, increase clearance as per the service bulletin.
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Compliance Time
Within 50 hours time in service after the effective date of this AD
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Affected Aircraft
British Aerospace Model HS/DH/BH-125 airplanes series -3A/R, -3A/RA with Modification 25/2600; series -400A with Modification 25/2550 or STC SA3870WE; series -600A with Modification 25/2468.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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