AD 91-18-14
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | BAe 146-100A | Airworthiness Directives; BRITISH AEROSPACE Model BAe 146-100A, -200A, and -300A Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-200A | Airworthiness Directives; BRITISH AEROSPACE Model BAe 146-100A, -200A, and -300A Series Airplanes |
| aircraft | BAE Systems (Operations) Limited | BAe 146-300A | Airworthiness Directives; BRITISH AEROSPACE Model BAe 146-100A, -200A, and -300A Series Airplanes |
Unsafe Condition
The side baulk blade in the right and left rear and forward passenger and service doors may not provide sufficient tension, and the clearance between the side baulk blade and its abutment may be insufficient, which could prevent the doors from opening during an emergency situation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install stronger springs to increase tension at the side baulk blade in the doors; increase the clearance between the side baulk blade and its abutment; and shorten the plate anchoring the side baulk return springs, following British Aerospace Service Bulletin 52-89-00668H, J, K & L, Revision 2. Alternative methods or compliance time adjustments may be approved by the FAA.
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Compliance Time
within 60 days after the effective date of this AD, unless previously accomplished
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Affected Aircraft
BAE Systems (Operations) Limited Model BAe 146-100A, BAe 146-200A, and BAe 146-300A series airplanes listed in British Aerospace Service Bulletin 52-89-00668H, J, K & L, Revision 2, where Modifications HCM00668H, J, K & L and HCM00931A have not been accomplished.
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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