AD 65-03-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | BOEING Model 727 Series Aircraft |
| aircraft | The Boeing Company | 727-100C Series | BOEING Model 727 Series Aircraft |
| aircraft | The Boeing Company | 727-200 Series | BOEING Model 727 Series Aircraft |
| aircraft | The Boeing Company | 727-200F Series | BOEING Model 727 Series Aircraft |
| aircraft | The Boeing Company | 727 Series | BOEING Model 727 Series Aircraft |
| aircraft | The Boeing Company | 727C Series | BOEING Model 727 Series Aircraft |
Unsafe Condition
Missing drain holes on the lower left and right-hand horizontal stabilizer trailing edge panels (P/N 65-22403-7 and -8) at Elevator Stations 50.50 through 66.50 could allow moisture accumulation, leading to corrosion and structural failure.
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Required Actions
Conduct a visual inspection of the specified panels for three drain holes on the outboard portions. If drain holes are missing, rework the panels per Boeing Alert Service Bulletin No. 55-14A before further flight. Acceptable hole sizes are 1/4-inch or 1/2-inch.
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Compliance Time
within the next 25 hours' time in service after the effective date of this AD unless already accomplished
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Affected Aircraft
Boeing Model 727 Series Aircraft (all variants including 727-100, 727-100C, 727-200, 727-200F, 727 Series, and 727C Series)
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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