AD 87-06-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
Unsafe Condition
The sealed needle bearings in the downlock outer link of the side strut upper segment of the main landing gear assemblies may fail due to corrosion or damage, leading to potential loss of landing gear function.
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Required Actions
Replace sealed needle bearings with same part number, inspect retainer bolt for damage or corrosion, and replace bolt if necessary. Repeat replacements and inspections every 6 years or 10,000 landings, whichever comes first. Alternatively, install self-lubricating Karon lined Kamatics bearings and high strength chrome plated CRES bolts per Boeing Service Bulletin 727-32-0341.
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Compliance Time
Prior to the accumulation of 10,000 landings or 6 years from date of manufacture or prior replacement, or within 1 year after the effective date of this AD, whichever occurs latest.
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Affected Aircraft
The Boeing Company Model 727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series, 727 Series, 727C Series airplanes certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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