Dash 8-100
Aircraft Equipment Problem Critical
Flight Crew Rejected Takeoff; Flight Crew Returned To Gate; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft; Procedure
As the Pilot flying; I advanced the power levers and called for the Captain to set the takeoff power. He stated the power was set and at around 50 or 60 KTS; the Master Caution light flashed and he called to reject the takeoff. When he took the controls; I noted which caution lights were illuminated: Roll Spoiler Inbound Ground; Roll Spoiler Outbound Ground; Roll Spoiler Inbound Hydraulic; and Roll Spoiler Outbound Hydraulic. Upon exiting the runway; we set the parking brake on the taxiway and the Captain called Dispatch and Maintenance. While he did this; I made a brief PA to the passengers explaining the situation. At the instruction of the maintenance personnel; we performed a static run up and were unable to duplicate the problem. We then returned to the gate and deplaned the passengers. After both the Captain and I performed another thorough walk around; we taxied to the runway with no passengers aboard to perform a simulated takeoff; as instructed by Maintenance. We were unable; once again; to duplicate the problem. After further discussion with Maintenance and Dispatch and the Flight Crew; we decided to board the passengers again; having determined the condition of the aircraft to be safe for flight. On our second takeoff roll; I advanced the power levers and called for the Captain to set takeoff power. As he was moving them past 80%; the caution light flashed again and he called to reject the takeoff. We reached a speed of 50 KTS and I noted the Roll Spoiler Inbound Ground and Roll Spoiler Outbound Ground caution lights were illuminated. Once again; we returned to the gate; deplaned the passengers; and spoke to Maintenance and Dispatch. Ultimately; we disable the roll spoilers as outlined in MEL 27-6-1. The rest of the flight was completed without incident.
A DHC100 had spoiler problems on takeoff that led the Crew to abort.  After maitenance the an abort for the same problem led Maintenance to defer the Roll Spoilers.