AD 64-16-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 720 Series | BOEING Model 720 Series Aircraft |
| aircraft | The Boeing Company | 720B Series | BOEING Model 720 Series Aircraft |
Unsafe Condition
Failures of bolts attaching the main landing gear centering cylinder and snubber assembly to the inner cylinder assembly and to the truck assembly have occurred.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace existing bolts with larger diameter bolts per Boeing Service Bulletin No. 1570/1570A within 500 hours' time in service. Alternatively, replace 9/16 inch-diameter bolts with specified Standard Press Steel parts. Later, rework lugs and reinstall using specific bolts within 3,000 hours' time in service, extendable to 6,000 hours or next main landing gear overhaul.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 500 hours' time in service after the effective date of this AD
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Affected Aircraft
Boeing Model 720 Series and 720B Series aircraft
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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