AD 66-22-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | BOEING Model 727 Series Airplanes |
Unsafe Condition
Failure of the pneumatic brake system due to leaks between the control valve and the brake housing.
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Required Actions
Modify the pneumatic brake system line installation in accordance with Boeing Service Bulletin No. 29-22, dated February 21, 1966, or later FAA-approved revision, or an equivalent approved by the Chief, Aircraft Engineering Division, FAA Western Region.
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Compliance Time
within the next 700 hours' time in service after the effective date of this AD
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Affected Aircraft
BOEING Model 727 Series Airplanes listed in Boeing Service Bulletin No. 29-22, dated February 21, 1966.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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