EMB ERJ 170/175 ER/LR
Confusion; Situational Awareness; Workload
Deviation - Speed All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Became Reoriented
Aircraft; Procedure; Human Factors
Beautiful day; calm winds and unrestricted visibility. I was the pilot flying; and after a short taxi; we were ready for departure from 28R. I was feeling great and I wanted to hand fly. We got cleared for takeoff and got instruction; runway heading. Passing through 1200-1300; Capt. called acceleration alt; and I asked for climb sequence; FLCH and VNAV; but I said no autopilot. At the same time we got a turn to 190; and I started turning before Capt. adjusted the heading bug. At this time I am looking away from my PFD for a couple of seconds and when I look back at it; my FD and Path Vector were not in agreement; so I got confused. The FD was indicating a 30 degree left turn; with a very low nose up attitude; but my Path Vector was showing a shallow left turn with a bigger nose up attitude. So in my confusion; I was trying to bring the FD to the Path Vector; increasing the pitch attitude; instead of putting 'the green thing on the pink thing'. At this point; Capt. start saying 'lower the nose'; and I think I did; but not sufficient enough. As a result; airspeed started decreasing and stick shaker activated. I pushed the nose down; but now the airspeed was increasing and got in to the amber; so I pitched up again; and shaker came back again. At some point Capt. suggested autopilot and after I recovered from the shaker. I asked for autopilot. I let my guard down; I was very relaxed and took flying that day too lightly. It took a split second for me to get disoriented and confused by looking away from the PFD after I started a turn ahead of the FD bug. After the new heading was selected; and I looked back at the PFD; I was behind already. I didn't know which one is me; so even though my instinct was telling me something; looking at the PFD was telling me something else; at least that's what I was thinking. We are so used to see the FD and the Path Vector always on top of each other; that when it happens that they are not; it can be confusing; as in my case. I think that the lack of experience flying this flight instruments display; in my case coming from a different FD display; played a big part in my confusion. The event was a wakeup call for me; and I am lucky I had an experienced Capt. next to me who didn't panic and kept calm instructed me how to recover. I suggest more raw data flying in the simulator and the practice of stall scenarios and recoveries.
EMB-175 First Officer hand flying on departure climb; became confused by the disparity between the Flight Director and the Path Vector on the PFD; lost airspeed; nosed over when the stick shaker activated then pulled up after an overspeed and reactivated the stick shaker. Captain talked the First Officer through the recovery process.