AD 2010-26-11

final rule
Data completeness: 70%

Airworthiness Directives; Kaman Aerospace Corporation (Kaman) Model K-1200 Helicopters

AD Number
2010-26-11
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2010-1253
FR Citation
75 FR 79950

Applicability

TypeManufacturerModelDetails
aircraft Kaman Aerospace Corporation (Kaman) Model K-1200 Airworthiness Directives; Kaman Aerospace Corporation (Kaman) Model K-1200 Helicopters

Unsafe Condition

Cracks in the main rotor blade spars, which could lead to blade failure and subsequent loss of control of the helicopter.

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

Required Actions

Before further flight, revise the Airworthiness Limitations section of the Instructions for Continued Airworthiness (ICA) to establish a life limit of 8,000 hours time-in-service (TIS) for each blade set. Remove each blade set with 8,000 or more hours TIS from service. Replace certain blade sets with airworthy blade sets at specified intervals based on the blade set serial number (S/N).

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

Compliance Time

Before further flight

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

Affected Aircraft

Kaman Aerospace Corporation Model K-1200 helicopters.

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

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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