AD 90-09-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Texas Instruments | Circuit Breakers | Airworthiness Directives; TEXAS INSTRUMENTS Circuit Breaker Models 6TC6-7.5 and -10 and 6TC20-7.5 and -10, all with date codes 8150 and earlier |
Unsafe Condition
Potential overheating of Texas Instruments circuit breaker Models 6TC6-7.5 and -10 and 6TC20-7.5 and -10 with date codes 8150 and earlier.
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Required Actions
Replace the circuit breakers with the same model numbers having manufacturing date codes of 8151 and later. Substantiate data may allow alternate compliance methods or adjusted compliance times through an FAA Airworthiness Inspector.
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Compliance Time
no later than November 1, 1990, unless already accomplished
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Affected Aircraft
Texas Instruments circuit breaker Models 6TC6-7.5 and -10 and 6TC20-7.5 and -10 with date codes 8150 and earlier.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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