Narrative:

During [the] flight to ZZZ I calculated fuel and decided the aircraft would be easier to hand fly at 16000 feet instead of FL260. The ride was forecasted rough there by ATC so I opted to stay at 16000 feet as I showed landing fuel of 3400 pounds and was ACARS messaged 'what possible scenario could make you fly at 16000 feet instead of FL260 as filed'. I found that very aggressive and questioning of my judgment and after the event on the previous flight and the strenuous [maintenance] delay I decided my mind had reached its max for the day from [an early] wake up and found the bad questioning and wording to frustrate me; and me airing on the side of safety to be unprofessional and I took myself off line. Keep in mind the first officer (first officer) nor flight attendants felt comfortable going but I assured their safety and completed the flight.after having a pitch trim runaway on [a previous] flight on short final with little elevator authority and zero left aileron authority I made a quick sound decision to land the aircraft with the assistance of the first officer. Once on touch down we had zero ground dump spoilers and the controls were stuck in the full left deflection all the way to the gate until hydraulic pumps were turned off. No question a major fault in the system which was diagnosed to be the autopilot which then they meled. This resulted in a fatigue call.

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Original NASA ASRS Text

Title: CRJ-700 Captain reported flying at a lower than filed altitude due to a previous maintenance issue with the aircraft.

Narrative: During [the] flight to ZZZ I calculated fuel and decided the aircraft would be easier to hand fly at 16000 feet instead of FL260. The ride was forecasted rough there by ATC so I opted to stay at 16000 feet as I showed landing fuel of 3400 LBS and was ACARS messaged 'What possible scenario could make you fly at 16000 feet instead of FL260 as filed'. I found that very aggressive and questioning of my judgment and after the event on the previous flight and the strenuous [maintenance] delay I decided my mind had reached its max for the day from [an early] wake up and found the bad questioning and wording to frustrate me; and me airing on the side of safety to be unprofessional and I took myself off line. Keep in mind the First Officer (FO) nor Flight Attendants felt comfortable going but I assured their safety and completed the flight.After having a pitch trim runaway on [a previous] flight on short final with little elevator authority and zero left aileron authority I made a quick sound decision to land the aircraft with the assistance of the FO. Once on touch down we had zero ground dump spoilers and the controls were stuck in the full left deflection all the way to the gate until hydraulic pumps were turned off. No question a major fault in the system which was diagnosed to be the autopilot which then they MELed. This resulted in a fatigue call.

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.