AD 84-08-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | A36TC | Airworthiness Directives; Beech Model A36TC and B36TC Airplanes |
| aircraft | Textron Aviation Inc. | B36TC | Airworthiness Directives; Beech Model A36TC and B36TC Airplanes |
Unsafe Condition
Loss of engine oil due to blockage of the turbocharger oil return line check valve.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the turbocharger oil return line check valve per Service Bulletin No. 2027. If the P/N 101-389011-55 check valve is installed, inspect and clean it every five hours time-in-service until replaced. Within 25 hours time-in-service, replace it with P/N 101-389011-69 as per the Service Bulletin.
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Compliance Time
Prior to further flight after the effective date of this AD and within the next 25 hours time-in-service after the effective date.
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Affected Aircraft
Beech Model A36TC (S/Ns EA-1 thru EA-241, EA-243 thru EA-272) and Model B36TC (S/Ns EA-242, EA-273 thru EA-382, EA-384 thru EA-396, EA-398 thru EA-404, EA-406 thru EA-409, EA-411 thru EA-415, and EA-418) airplanes.
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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