Dash 8-400
Flight Crew Air Transport Pilot (ATP)
Human-Machine Interface; Confusion; Situational Awareness
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Issued New Clearance; Flight Crew Returned To Clearance
Aircraft; Human Factors
On climbout we were given two left turns and we were now heading towards ALB. Departure then gave us direct to HANAA and a frequency change to BOS Center. The aircraft turned 180 degrees because we had HANNA programmed into the FMS instead of HANAA. When we realized the mistake; BOS Center asked where we were going; we replied that we had put the wrong HANAA in; Center jokingly replied 'go direct ALB; there is only one of those.' We then turned direct to ALB and continued the flight.When verifying the flight plan; be sure to check the total mileage in the FMS; check the spelling letter by letter of each fix. HANAA and HANNA are so similar; we both missed the Data Entry error.
No additional information was provided in the secondary narrative.
When cleared direct to HANAA waypoint the flight crew of a Dash 8 entered HANNA from their legs page; not realizing it had been misspelled in their filed route. The start of a 180 degree turn alerted them to the error and they were recleared direct to a local VOR.