LR60 captain experiences a runway excursion during landing in calm wind when the thrust reversers do...

Narrative:

The weather was reported as VFR scattered clouds at 7;000 feet and wind as calm according to the most recent ATIS. Both pilots identified the runway in use 10 miles out and cleared for the visual approach. Fully configured and a stable approach. Touchdown on center right main left main and nose wheel during roll out attempted to activate thrust reversers (TR) but neither unlocked. Attempted again first officer (first officer) stated one unlock; aircraft came off the center line to the right. I started correcting with left rudder control to get back to the center line first officer stated 2 unlock; right deployed. The aircraft continued to the right side of the runway and I thought there may be a TR issue. I stowed both impacted runway light and continued controlling the aircraft back to the center line. Following tower instruction a remained on the runway and communicated with airport operations that came out to inspect the outside of the plane. I didn't notice any adverse problems with steering tires or control. The tower asked if I was able to taxi back and I said I could; and continued to taxi back to the FBO on my own power. Upon shutting down; the passengers departed and I inspected the aircraft and noted damage to the flap due to impact with runway light. I spoke with the airport manager; and notified my chief pilot and director of operations.

Original NASA ASRS Text

Title: LR60 Captain experiences a runway excursion during landing in calm wind when the thrust reversers do not deploy symmetrically. A runway light is hit causing damage to the flaps.

Narrative: The weather was reported as VFR scattered clouds at 7;000 feet and wind as calm according to the most recent ATIS. Both pilots identified the runway in use 10 miles out and cleared for the visual approach. Fully configured and a stable approach. Touchdown on center right main left main and nose wheel during roll out attempted to activate thrust reversers (TR) but neither unlocked. Attempted again First Officer (FO) stated one unlock; aircraft came off the center line to the right. I started correcting with left rudder control to get back to the center line FO stated 2 unlock; right deployed. The aircraft continued to the right side of the runway and I thought there may be a TR issue. I stowed both impacted runway light and continued controlling the aircraft back to the center line. Following Tower instruction a remained on the runway and communicated with airport operations that came out to inspect the outside of the plane. I didn't notice any adverse problems with steering tires or control. The Tower asked if I was able to taxi back and I said I could; and continued to taxi back to the FBO on my own power. Upon shutting down; the passengers departed and I inspected the aircraft and noted damage to the flap due to impact with runway light. I spoke with the Airport Manager; and notified my Chief pilot and Director of Operations.

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.

Attributes
ACN	1180978
Time
Date	201406
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Learjet 60
Operating Under FAR Part	Part 135
Flight Phase	Landing
Route In Use	Visual Approach
Flight Plan	IFR
Component
Aircraft Component	Turbine Engine Thrust Reverser
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 115 Flight Crew Total 3910 Flight Crew Type 905
Events
Anomaly	Aircraft Equipment Problem Less Severe Ground Event / Encounter Object Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Object

LR60 captain experiences a runway excursion during landing in calm wind when the thrust reversers do not deploy symmetrically. A runway light is hit causing damage to the flaps.