AD 79-05-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-10-10 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F and -40 Series Airplanes |
| aircraft | The Boeing Company | DC-10-10F | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F and -40 Series Airplanes |
| aircraft | The Boeing Company | DC-10-30 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F and -40 Series Airplanes |
| aircraft | The Boeing Company | DC-10-30F (KC-10A, KDC-10) | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F and -40 Series Airplanes |
| aircraft | The Boeing Company | DC-10-40 | Airworthiness Directives; MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F and -40 Series Airplanes |
Unsafe Condition
Autopilot 'land' mode failure that could cause automatic landing system performance outside certification limits due to degraded wire bundles serviced by specific receptacles.
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Required Actions
Deactivate the autopilot 'land' mode, replace wire bundles with serviceable parts or per Service Bulletin 24-99, or perform initial and repetitive tests per Alert Service Bulletin A24-99. Compliance with testing or deactivation required within specified time intervals based on wire bundle service hours.
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Compliance Time
Within the next 100 hours' time in service from the effective date of this AD for airplanes with 33,000 or more hours time in service on wire bundles. Initial testing must be done within specified intervals (e.g., 3,000 additional hours, 1,000 additional hours) based on total hours' time in service on the wire bundles. Repetitive testing at intervals of 3,000 or 5,000 hours' time in service, except DC-10-40 may use 5,000 or 2,000 hours as applicable.
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Affected Aircraft
MCDONNELL DOUGLAS DC-10-10, -10F, -30, -30F (KC-10A, KDC-10), and -40 series airplanes certificated in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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