AD 77-02-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | 100 | Airworthiness Directives; BEECH Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100 and A100 Airplanes |
| aircraft | Textron Aviation Inc. | 58 | Airworthiness Directives; BEECH Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100 and A100 Airplanes |
| aircraft | Textron Aviation Inc. | 58A | Airworthiness Directives; BEECH Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100 and A100 Airplanes |
| aircraft | Textron Aviation Inc. | 60 | Airworthiness Directives; BEECH Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100 and A100 Airplanes |
| aircraft | Textron Aviation Inc. | 65-80 | Airworthiness Directives; BEECH Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100 and A100 Airplanes |
| aircraft | Textron Aviation Inc. | 70 | Airworthiness Directives; BEECH Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100 and A100 Airplanes |
| aircraft | Textron Aviation Inc. | 95-B55 | Airworthiness Directives; BEECH Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100 and A100 Airplanes |
| aircraft | Textron Aviation Inc. | 95-B55A | Airworthiness Directives; BEECH Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100 and A100 Airplanes |
| aircraft | Textron Aviation Inc. | A100 | Airworthiness Directives; BEECH Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100 and A100 Airplanes |
| aircraft | Textron Aviation Inc. | A56TC | Airworthiness Directives; BEECH Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100 and A100 Airplanes |
Unsafe Condition
Wing tip strobe lights such as Grimes P/N 30-0669-1 or Hoskins P/N 30-0187-21 may explode due to non-explosion proof design.
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Required Actions
Within 100 hours' time in service after March 3, 1977, visually inspect wing tip strobe lights. Deactivate non-compliant strobe light systems using guards, blocked circuit breakers, or other approved methods. Reactivate only after installing approved explosion proof strobe lights per specified service instructions or approved data.
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Compliance Time
within the next 100 hours' time in-service after the effective date of this AD
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Affected Aircraft
Beech Models E55, E55A, A56TC, 58, 58A, 60, 60A, 65-B80, 70, B90, C90, E90, 95-B55, 95-B55A, 100, and A100 with specified serial ranges, equipped with non-excepted wing tip strobe lights.
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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