AD 92-22-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | BH.125 Series 400A | BRITISH AEROSPACE Model DH/HS/BH 125 Series Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A | BRITISH AEROSPACE Model DH/HS/BH 125 Series Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A-522 | BRITISH AEROSPACE Model DH/HS/BH 125 Series Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A/R-522 | BRITISH AEROSPACE Model DH/HS/BH 125 Series Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A/S-522 | BRITISH AEROSPACE Model DH/HS/BH 125 Series Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A | BRITISH AEROSPACE Model DH/HS/BH 125 Series Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A/R | BRITISH AEROSPACE Model DH/HS/BH 125 Series Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A/RA | BRITISH AEROSPACE Model DH/HS/BH 125 Series Airplanes |
| aircraft | Textron Aviation Inc. | DH.125 Series 400A | BRITISH AEROSPACE Model DH/HS/BH 125 Series Airplanes |
Unsafe Condition
In-flight fire hazard due to misalignment of fuel feed pipes at pipe joint couplings outside specifications cited in British Aerospace Service Bulletin SB 28-87.
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Required Actions
Within 6 months after November 24, 1992, conduct a visual inspection for proper alignment of fuel feed pipes at pipe joint couplings per SB 28-87. If misalignment is detected outside specifications, correct alignment by installing an 'O' ring modification and fuel pipe clamping modification before further flight. If no misalignment, no further action is needed.
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Compliance Time
Within 6 months after the effective date of this AD
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Affected Aircraft
British Aerospace Model DH/HS/BH 125 series airplanes excluding turbo fan engine-powered Model 125-600A, 125-700A, 125-800A, and 125-1000A series, as listed in SB 28-87 dated December 31, 1991.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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