G-200 captain reported he wrote up the aircraft for the autopilot disengaging and 'stiff ailerons.'

Attributes
ACN	1296266
Time
Date	201509
Local Time Of Day	0001-0600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Gulfstream G200 (IAI 1126 Galaxy)
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Autopilot
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

I wrote up aircraft X for an autopilot disengaging in flight and stiff ailerons. We left rvsm airspace due to the autopilot malfunction. Ailerons resumed normal control forces descending into the 20's. As we had full controllability of the aircraft I view this as a non-reportable NTSB event.

Original NASA ASRS Text

Title: G-200 Captain reported he wrote up the aircraft for the autopilot disengaging and 'stiff ailerons.'

Narrative: I wrote up Aircraft X for an autopilot disengaging in flight and stiff ailerons. We left RVSM airspace due to the autopilot malfunction. Ailerons resumed normal control forces descending into the 20's. As we had full controllability of the aircraft I view this as a non-reportable NTSB event.

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.