AD 86-19-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 737-300 Series | BOEING Model 737-300 Airplanes |
Unsafe Condition
The unsafe condition is related to the potential for the elevator feel and centering unit (EFCU) to overheat, which could lead to reduced elevator control effectiveness.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct an inspection of the EFCU and replace it if necessary. Install a heat shield and revise the airplane flight manual (AFM) with updated operational procedures.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 1,000 flight hours, flight cycles, or landings, whichever occurs first, after the effective date of this AD.
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Affected Aircraft
Boeing Model 737-300 airplanes, serial numbers 28115 through 28134, and those modified under Supplemental Type Certificate (STC) SA####.
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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