AD 82-12-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | BH.125 Series 400A | Airworthiness Directives; BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 Aircraft |
| aircraft | Textron Aviation Inc. | BH.125 Series 600A | Airworthiness Directives; BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 Aircraft |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A | Airworthiness Directives; BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 Aircraft |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A-522 | Airworthiness Directives; BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 Aircraft |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A/R-522 | Airworthiness Directives; BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 Aircraft |
| aircraft | Textron Aviation Inc. | DH.125 Series 1A/S-522 | Airworthiness Directives; BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 Aircraft |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A | Airworthiness Directives; BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 Aircraft |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A/R | Airworthiness Directives; BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 Aircraft |
| aircraft | Textron Aviation Inc. | DH.125 Series 3A/RA | Airworthiness Directives; BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 Aircraft |
| aircraft | Textron Aviation Inc. | DH.125 Series 400A | Airworthiness Directives; BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 Aircraft |
Unsafe Condition
Failure of the PE busbar and APU start circuit operation due to insufficient protection from overcurrent conditions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a 275 ampere airfuse within 100 hours time in service after the effective date, following the instructions in British Aerospace Service Bulletin 49-23-(6525), Revision 5. Special flight permits may be used to operate to a base for compliance.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 hours time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
BRITISH AEROSPACE (Hawker Siddeley) Model HS/BH/DH 125 aircraft up to and including Series 600A, serial numbers listed in Service Bulletin 49-23-(6525), Revision 5.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.