AD Amdt-39-12050
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | McDonnell Douglas | Various | Airworthiness Directives; McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-987 (MD-87); Model MD-88 Airplanes; and Model MD-90-30 Series Airplanes |
Unsafe Condition
Omission of an airplane model from paragraph (c) of the AD, resulting in incomplete installation of required components in the aft fuselage and APU inlet area.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install a pipe support and clamps on the hydraulic lines in the aft fuselage; replace the hydraulic pipe assembly in the aft fuselage with a new pipe assembly; install drain tube assemblies and diverter assemblies in the area of the auxiliary power unit (APU) inlet, as applicable.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 36 months after the effective date of this AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
McDonnell Douglas Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87) series airplanes, Model MD-88 airplanes, and Model MD-90-30 series airplanes, as listed in the referenced service bulletins.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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