<< >> NASA ASRS Report 1678786, August 2019

A learjet 60 captain reported the trim stabilizer failed to respond after takeoff resulting in a return to departure airport.

Attributes
ACN	1678786
Time
Date	201908
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Learjet 60
Operating Under FAR Part	Part 135
Flight Phase	Initial Climb
Flight Plan	IFR
Component
Aircraft Component	Horizontal Stabilizer Trim
Person 1
Function	Captain
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 80 Flight Crew Total 25000 Flight Crew Type 80
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy

Narrative:

Shortly after takeoff; while accelerating through approximately 180 KIAS; the primary electrical stabilizer pitch trim failed to respond to pitch down trim commands. This condition applied to commands from both the captain's and copilot's primary pitch trim switches. The decision was made to return to ZZZ. Landing and taxi was made without further incident.

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Original NASA ASRS Text

Title: A Learjet 60 Captain reported the trim stabilizer failed to respond after takeoff resulting in a return to departure airport.

Narrative: Shortly after takeoff; while accelerating through approximately 180 KIAS; the primary electrical stabilizer pitch trim failed to respond to pitch down trim commands. This condition applied to commands from both the Captain's and Copilot's primary pitch trim switches. The decision was made to return to ZZZ. Landing and taxi was made without further incident.

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.