AD 2003-11-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | MD-90-30 | Airworthiness Directives; McDonnell Douglas Model MD-90-30 Airplanes |
Unsafe Condition
Failure of the starter relay of the auxiliary power unit (APU), which could result in depleted main airplane batteries, overheated APU starters, and damage to the wiring adjacent to the APU starter.
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Required Actions
Replace the APU starter relay with a new, improved relay within 6 months after the effective date of this AD, in accordance with McDonnell Douglas Alert Service Bulletin MD90-49A025, Revision 01, dated April 16, 2002. Replacement before the effective date, in accordance with the December 13, 2000 bulletin, is also acceptable.
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Compliance Time
Within 6 months after the effective date of this AD.
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Affected Aircraft
All McDonnell Douglas Model MD-90-30 airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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