AD 59-10-06

final rule
Data completeness: 60%

Airworthiness Directives; KAMAN: All Model K-240 Helicopters (Military HTK-1)

AD Number
59-10-06
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft Kaman Aerospace Corporation K-240 Airworthiness Directives; KAMAN: All Model K-240 Helicopters (Military HTK-1)

Unsafe Condition

Wood type cheek plate rotor blades (P/N K411042-1, -2, -7, and -8) are ineligible for use due to associated adverse service experience.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Replace or modify wood type cheek plate rotor blades with fiberglass type blades (P/N K411042-77 and -78) and establish a 2,500-hour retirement life.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Kaman Aerospace Corporation Model K-240 Helicopters (Military HTK-1)

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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