AD 84-09-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | DC-8-71 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8-70 Series Airplanes |
| aircraft | The Boeing Company | DC-8-72 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8-70 Series Airplanes |
| aircraft | The Boeing Company | DC-8-73 | Airworthiness Directives; MCDONNELL DOUGLAS DC-8-70 Series Airplanes |
Unsafe Condition
Failure of the P/N C24466000 Thrust Reverser Hydraulic Control Units (HCU's) on the inboard thrust reversers could result in uncommanded thrust reverser deployment or failure to stow, leading to loss of control or damage.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace P/N C24466000 HCU's on both inboard engine thrust reversers with approved units (P/N C24466000-/-2, P/N C24466001-2, or FAA-approved equivalents) within 30 days after the AD's effective date. AFM limitations from AD 82-19-51 R1 may be removed after replacement on all fleet aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 30 days after the effective date of this AD
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Affected Aircraft
McDonnell Douglas Model DC-8-70 series airplanes equipped with P/N C24466000 Thrust Reverser Hydraulic Control Units (HCU's) on the inboard thrust reversers
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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