AD 90-02-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | A320-111 | Airworthiness Directives; Airbus Industrie Model A320 Series Airplanes |
| aircraft | Airbus | A320-211 | Airworthiness Directives; Airbus Industrie Model A320 Series Airplanes |
| aircraft | Airbus | A320-212 | Airworthiness Directives; Airbus Industrie Model A320 Series Airplanes |
| aircraft | Airbus | A320-214 | Airworthiness Directives; Airbus Industrie Model A320 Series Airplanes |
| aircraft | Airbus | A320-231 | Airworthiness Directives; Airbus Industrie Model A320 Series Airplanes |
| aircraft | Airbus | A320-232 | Airworthiness Directives; Airbus Industrie Model A320 Series Airplanes |
| aircraft | Airbus | A320-233 | Airworthiness Directives; Airbus Industrie Model A320 Series Airplanes |
Unsafe Condition
Possible false electronic centralized aircraft monitor (ECAM) messages on Auxiliary Power Unit (APU) shutdown due to standby transformer/rectifier (TR) not being identical to the main TR and located in a position with insufficient ventilation.
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Required Actions
Replace the standby transformer/rectifier (TR) with one identical to the main TR and relocate it to a position with improved ventilation per Airbus Service Bulletin A320-24-1028. Alternate compliance may be approved by the FAA Manager, Standardization Branch, ANM-113.
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Compliance Time
within 60 days after the effective date of this AD, unless previously accomplished
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Affected Aircraft
Airbus Model A320 series airplanes, Serial Numbers 005 through 039, and 042 through 049, 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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