AD 68-21-04

final rule
Data completeness: 70%

Airworthiness Directives; BEECHCRAFT Models 65-90, 65-A90, 65-B90 and 65-A90-1 Aircraft

AD Number
68-21-04
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Textron Aviation Inc. 65-90 Airworthiness Directives; BEECHCRAFT Models 65-90, 65-A90, 65-B90 and 65-A90-1 Aircraft
aircraft Textron Aviation Inc. 65-A90 Airworthiness Directives; BEECHCRAFT Models 65-90, 65-A90, 65-B90 and 65-A90-1 Aircraft
aircraft Textron Aviation Inc. 65-A90-1 Airworthiness Directives; BEECHCRAFT Models 65-90, 65-A90, 65-B90 and 65-A90-1 Aircraft
aircraft Textron Aviation Inc. B90 Airworthiness Directives; BEECHCRAFT Models 65-90, 65-A90, 65-B90 and 65-A90-1 Aircraft

Unsafe Condition

Ice damage to engine when operating in icing conditions above 15,000 feet MSL.

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Required Actions

Install seal strips and a spring lockdown assembly on the Inertial Separator Vane and an automatic ignition (re-light) system per Beechcraft Service Instructions #0115-010. Equip the airplane with the applicable FAA Flight Manual as specified in the same service instructions. Maintain Emergency Order Amending Type Certificate No. 3A20 until required actions are completed.

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Compliance Time

within one year after the effective date of this Airworthiness Directive

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Affected Aircraft

BEECHCRAFT Models 65-90, 65-A90, 65-B90 (Serial Numbers LJ-1 through LJ-406) and 65-A90-1 (Serial Numbers LM-1 through LM-129)

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Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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