AD 94-17-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A340-211 | Airworthiness Directives; Airbus Model A340-211 and -311 Series Airplanes |
| aircraft | Airbus | A340-311 | Airworthiness Directives; Airbus Model A340-211 and -311 Series Airplanes |
Unsafe Condition
Excessive vacuum generator overloads or blocked rotor conditions cause the thermal protection device and/or related aircraft circuit breakers to fail to interrupt the power supply, leading to overheating and potential fire.
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Required Actions
Replace circuit breakers 6 MG and 106 MG (part number NSA 931302-25) with faster 20 amp circuit breakers (part number NSA 931322-200) within 45 days after the effective date, following Airbus AOT 38-01 or Service Bulletin A340-38-4013.
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Compliance Time
Within 45 days after the effective date of this AD
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Affected Aircraft
Airbus Model A340-211 and -311 series airplanes listed in Airbus Service Bulletin A340-38-4013, dated January 5, 1994, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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