AD 87-06-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Mechanical Products | Circuit Breakers | Airworthiness Directives; MECHANICAL PRODUCTS, INC. Model 4001, 4200, 4310, and 8500 Series Circuit Breakers |
Unsafe Condition
Possible loss of essential equipment, electrical fire, or electrical shock hazard due to defective circuit breakers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within six months after the AD's effective date, visually inspect for installation of applicable circuit breakers and remove all units from service before further flight, or verify none are installed via maintenance/purchasing records. Return affected circuit breakers to Mechanical Products for potential replacement.
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Compliance Time
Within six months after the effective date of this AD
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Affected Aircraft
Mechanical Products, Inc. Models 4001, 4200, 4310-001/-019, and 8500 Series circuit breakers with date codes from 8430 to 8636, excluding those produced before July 23, 1984, or marked with a white inverted Z/T and 'R' prefixed date code.
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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