Commercial Fixed Wing
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Situational Awareness; Human-Machine Interface; Distraction; Troubleshooting
Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Ground Equipment Issue; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Provided Assistance; Flight Crew Overcame Equipment Problem
ATC Equipment / Nav Facility / Buildings; Human Factors
On visual approach to Runway 01L Tower Controller called an 'altitude alert'. We were cleared for the visual to Runway 01L to Tampa. The glideslope to the ILS 01L was NOTAM'd Out of Service.  Tower instructed us to maintain 2;600 feet until north of Macdill AFB. I had briefed that this would cause us to be high and that I would configure the aircraft for landing at 2;600 feet and prior to Macdill.  I had also briefed that we would need a high rate of descent to get us on glide path.  Once north of Macdill; and runway in sight; I disconnected the autopilot; and started to hand fly the visual approach. At approximately 1;000 feet the First Officer stated we were approaching the (visual 3:1) glidepath.  At that time; I had started to reduce the rate of descent.  At about the same time the Tower called an altitude alert for Aircraft X.  I started to pick up the PAPI and saw we were below glidepath.  I continued reducing descent rate to intercept the PAPI glidepath.  Aircraft was on glidepath and stable at 500 feet. Landed normally. [Suggest] Brief the visual in more detail on 3:1 glidepath and required rate of descent to intercept from above.
[Report narrative contained no additional information.]
Flight crew reported being low on final into Tampa while conducting a visual approach and was unaware until the PAPI was in sight.