AD 64-09-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING Model 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING Model 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING Model 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-200 | BOEING Model 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-300 Series | BOEING Model 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-300B Series | BOEING Model 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-300C Series | BOEING Model 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-400 Series | BOEING Model 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 720 Series | BOEING Model 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 720B Series | BOEING Model 707 and 720 Series Aircraft |
Unsafe Condition
Ice formation in the elevator balance panel hinge or around the balance panel track grip due to exposure to heavy rain prior to takeoff or during takeoff with low freezing altitudes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Mix MIL-G-25760 or MIL-G-7118 grease with Methyl Ethyl Ketone or aliphatic naptha to a suitable consistency, and apply lubricant to the upper surface of the piano hinge for each balance panel and on either side of both balance panel track grips. Inspections must be repeated at intervals not exceeding 1,200 hours' time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 600 hours' time in service after the effective date of this AD, and thereafter at intervals not exceeding 1,200 hours' time in service
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 707 and 720 Series Aircraft, all models and serial numbers as specified in the AD.
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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