AD 80-07-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING Model 707/720/727/737/747 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING Model 707/720/727/737/747 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING Model 707/720/727/737/747 Series Airplanes |
| aircraft | The Boeing Company | 707-200 | BOEING Model 707/720/727/737/747 Series Airplanes |
| aircraft | The Boeing Company | 707-300 Series | BOEING Model 707/720/727/737/747 Series Airplanes |
| aircraft | The Boeing Company | 707-300B Series | BOEING Model 707/720/727/737/747 Series Airplanes |
| aircraft | The Boeing Company | 707-300C Series | BOEING Model 707/720/727/737/747 Series Airplanes |
| aircraft | The Boeing Company | 707-400 Series | BOEING Model 707/720/727/737/747 Series Airplanes |
| aircraft | The Boeing Company | 720 Series | BOEING Model 707/720/727/737/747 Series Airplanes |
| aircraft | The Boeing Company | 720B Series | BOEING Model 707/720/727/737/747 Series Airplanes |
Unsafe Condition
Control valve failure could cause control surface reversal due to hydraulic components repaired or produced by Fortner Engineering and Manufacturing, Inc. under FAA Repair Station Certificate No. 417-5.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct a one-time manual input hardover test within three days of the effective date. Remove and replace specified valve assemblies within 30 days if they were overhauled or produced by Fortner Engineering.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within three days from the effective date (for the test) and within 30 days from the effective date (for removal and replacement)
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Affected Aircraft
Boeing Model 707/720/727/737/747 series airplanes with hydraulic components (valve assemblies and lap assemblies) overhauled or produced by Fortner Engineering and Manufacturing, Inc.
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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