AD Amdt-39-10180

final rule
Data completeness: 70%

Airworthiness Directives; Pilatus Aircraft LTD Models PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, and PC-12 Airplanes

AD Number
Amdt-39-10180
Status
final_rule
Effective Date
Product Category
propeller
Docket
Docket No. 97-CE-18-AD
FR Citation
62 FR 56064

Applicability

TypeManufacturerModelDetails
aircraft Pilatus Aircraft LTD Models PC-6/B1-H2 Airworthiness Directives; Pilatus Aircraft LTD Models PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, and PC-12 Airplanes

Unsafe Condition

Improper utilization of propeller beta during flight leading to power levers positioned below the flight idle stop, which can cause loss of airplane control or engine overspeed with consequent loss of engine power.

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

Required Actions

Amend the Limitations Section of the airplane flight manual or pilot's operating handbook to prohibit positioning power levers below the flight idle stop during flight. Include a statement of consequences if the limitation is not followed.

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

Pilatus Aircraft LTD Models PC-6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, and all PC-12 airplanes.

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

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.