<< >> NASA ASRS Report 1715079, January 2020

Pilot reported left engine prop RPM rolled back on takeoff; causing them to feather the left engine and return to the departure airport.

Attributes
ACN	1715079
Time
Date	202001
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Make Model Name	Beech 1900
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Propeller Control
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy

Narrative:

During take-off roll left engine prop rpm rolled back to from 1700 to 500 RPM torque stayed at 3000 ft-lbs. Auto-feather was armed but not activated. Pilot feathered engine and performed a left pattern for ZZZ runway xx and safely.[identified the issue] after V1 when yawing moment began. [It was caused by] engine propeller governor failure. [In response the pilot] feathered engine and performed a left traffic pattern and landed runway xx in ZZZ. [I suggest] maintenance leadership be more attentive to pilot write-ups; having spare airplane so routine/unscheduled maintenance is not rushed to meet unrealistic deadlines.

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Original NASA ASRS Text

Title: Pilot reported left engine prop RPM rolled back on takeoff; causing them to feather the left engine and return to the departure airport.

Narrative: During take-off roll left engine prop rpm rolled back to from 1700 to 500 RPM torque stayed at 3000 ft-lbs. auto-feather was armed but not activated. Pilot feathered engine and performed a left pattern for ZZZ Runway XX and safely.[Identified the issue] after V1 when yawing moment began. [It was caused by] engine propeller governor failure. [In response the pilot] feathered engine and performed a left traffic pattern and landed Runway XX in ZZZ. [I suggest] maintenance leadership be more attentive to pilot write-ups; having spare airplane so routine/unscheduled maintenance is not rushed to meet unrealistic deadlines.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.