AD 86-22-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-9-81 (MD-81) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series Airplanes |
| aircraft | The Boeing Company | DC-9-82 (MD-82) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series Airplanes |
| aircraft | The Boeing Company | DC-9-83 (MD-83) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series Airplanes |
| aircraft | The Boeing Company | DC-9-87 (MD-87) | Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 Series Airplanes |
Unsafe Condition
Stress corrosion failure of the horizontal stabilizer actuator mounting bolts and subsequent damage to adjacent structure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove and replace horizontal stabilizer actuator mounting bolts, left and right sides, in accordance with McDonnell Douglas DC-9 Service Bulletin 27-278. Alternate means of compliance may be used if approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 1,400 hours time in service, or within 6 months, whichever occurs earlier, after the effective date of this AD
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Affected Aircraft
McDonnell Douglas Model DC-9-80 series airplanes, Fuselage Numbers 1218 through 1249
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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