B757-200
Flight Crew Air Transport Pilot (ATP)
Communication Breakdown; Situational Awareness
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Rejected Takeoff; General Maintenance Action
Human Factors; Aircraft; Procedure
We attempted a rolling takeoff. After selecting autothrottles the Captain (pilot flying) noticed the throttles wouldn't advance above mid-range using either the autothrottles or by pushing on them manually. We performed a low speed abort at 60 KTS without incident. Back at the gate; the Mechanic informed us that some pins that restrict throttle movement were not removed after some recent Fuel Control maintenance. This was a classic attention to detail mistake. The plane was late coming from the hangar where the Fuel Control Units had been worked on. I don't know it for a fact; but I feel the mechanics might have been rushed to return the aircraft to service.
On takeoff roll; with autothrottles armed and engaged; the throttles would not advance to takeoff power. I attempted to manually advance the throttles; but they still would not move any further. I discontinued the takeoff at approximately 60 KTS. The abort and subsequent return to gate was uneventful. Maintenance was called; and they found a problem with the Power Stops for both engines. Apparently; they had been positioned for maintenance action and had not been unseated when the procedure was completed. After unseating the Power Stops; the throttles functioned normally. The maintenance was signed-off and we continued; with the same aircraft; to destination without incident. We need to ensure complete adherence to procedures by all parties involved with the preparation; repair; movement and operation of our aircraft.
Two pilots and a Mechanic report about Part Power Stops (PPS) that had not been removed from both engines on a B757-200 aircraft after a Fuel Flow Governor (FFG) had been replaced. The Part Power Stops prevented full takeoff power; requiring a Rejected Takeoff (RTO).