Date: 201403
Local time of day: 1201-1800
Location: DCA.Airport, DC
Flight conditions: VMC
Aircraft: Large Transport; Low Wing; 2 Turbojet Eng
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Initial Approach
Airspace: Class B DCA
ATC / advisory: TRACON PCT
Reporter organization: Air Carrier
Reporter function: Captain; Pilot Not Flying
Reporter qualification: Flight Crew Air Transport Pilot (ATP)
Human factors: Communication Breakdown; Distraction; Situational Awareness; Workload
Anomaly: Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Detector: Person Air Traffic Control; Person Flight Crew
When detected: In-flight
Result: Air Traffic Control Issued Advisory / Alert; Flight Crew Became Reoriented; Flight Crew Returned To Clearance; Flight Crew Took Evasive Action
Contributing factors: Human Factors
Primary problem: Human Factors

Narrative: Aircraft was assigned River Visual to Runway 19; DCA. Plane was initially high for approach; gear lowered and flaps 10 with speedbrakes in effort to be at 10 miles/3;000 FT to begin approach. Relatively new First Officer (FO) was pilot flying; he had difficulty seeing bridge where approach begins while in descent; flew past the river. I told him to turn back to right; and he did; but he also maintained a steep descent; and as he rolled onto the river; we were at 2;000 FT instead of 3;000. I told him to maintain 2;000 until we intercepted the glide path; just as ATC called and mentioned that we were below the recommended altitude; asked if we needed any assistance. I replied that we were following the river; had the airport in sight; and did not. I turned to set my iPad up for taxi; looked back and noticed that FO was continuing to descend. I repeated that he needed to stop descending 'NOW' --and made sure he did. ATC again noted that we were below recommended altitude. I affirmed that we didn't require assistance; had the airport in sight; and were following the river. We intercepted a visual glide path; and landed uneventfully.The FO had not flown this approach before; and I had never flown with him prior to this trip. He has about 300 hours since returning from furlough; I probably should've flown the approach; as I've done it many times; and he could've had a chance to see it before doing it. In briefing; I recommended that he follow a simple '3 to 1' rule to fly the approach; and configure early. He expressed a desire to use VNAV; and I told him that was fine; but that it might not lend itself well to a 'slam dunk' When cleared for the approach; he set MDA; in the midst of the slam dunk. in discussing the approach with him later; it was clear that his ADI guidance had been more confusing than helpful.  I should've made absolutely sure that my FO stopped descending before shifting my attention to the I pad; and Initially I was overly focused on helping him to get on the approach; and should've picked up his descent below recommended altitude sooner. I don't think we violated any FAR's; but do think I could've done a better job in backing him up.




Synopsis: A First Officer just returned from furlough and never having flown the DCA Runway 19 River Visual was nearly a 1;000 FT low to start with and only after the Captain commanded leveling twice did he return to profile.