AD 87-04-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-81 (MD-81) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 (MD-80) Series Airplanes |
| aircraft | The Boeing Company | DC-9-82 (MD-82) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 (MD-80) Series Airplanes |
| aircraft | The Boeing Company | DC-9-83 (MD-83) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 (MD-80) Series Airplanes |
| aircraft | The Boeing Company | DC-9-87 (MD-87) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 (MD-80) Series Airplanes |
Unsafe Condition
5th stage compressor blade failure from flutter and the possibility of engine power loss.
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Required Actions
Revise the AFM to add engine and airplane performance limitations from Appendix 10 of FAA-approved MDC-J8480, ensure EPR Indicating System components are operative before takeoff, and install modified blades P/N 804505 per P&W SB 5618 or equivalent.
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Compliance Time
within 30 calendar days after the effective date of this airworthiness directive
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Affected Aircraft
McDonnell Douglas DC-9-80 (MD-80) series airplanes equipped with Pratt and Whitney JT8D-209, -217, or -217A engines listed in P&W SB 5618 dated November 26, 1985.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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