AD 97-05-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A320-111 | Airworthiness Directives; Airbus Model A320 Series Airplanes |
| aircraft | Airbus | A320-211 | Airworthiness Directives; Airbus Model A320 Series Airplanes |
| aircraft | Airbus | A320-212 | Airworthiness Directives; Airbus Model A320 Series Airplanes |
| aircraft | Airbus | A320-214 | Airworthiness Directives; Airbus Model A320 Series Airplanes |
| aircraft | Airbus | A320-231 | Airworthiness Directives; Airbus Model A320 Series Airplanes |
| aircraft | Airbus | A320-232 | Airworthiness Directives; Airbus Model A320 Series Airplanes |
| aircraft | Airbus | A320-233 | Airworthiness Directives; Airbus Model A320 Series Airplanes |
Unsafe Condition
Improper functioning of the standby generator control unit (GCU) could result in loss of the standby emergency generation system.
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Required Actions
Replace the existing standby GCU with an improved GCU (P/N 520915) in accordance with specified service bulletins. For some airplanes, modify wiring prior to GCU replacement and perform operational tests as required.
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Compliance Time
Within 150 days after the effective date of this AD (April 3, 1997) for airplanes not subject to paragraph (a). For Model A320-111, -211, and -231 with specified serial numbers, compliance was required within 150 days after January 28, 1991.
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Affected Aircraft
Airbus Model A320 series airplanes with serial numbers 003 through 058, 060 through 067, 069 through 072, 074 through 083, and 085 for paragraph (a); all other affected models under this AD as specified.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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