B737 captain reported getting low on approach to landing.

Attributes
ACN	1567321
Time
Date	201808
Local Time Of Day	1801-2400
Place
Locale Reference	SFO.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 140 Flight Crew Type 838
Events
Anomaly	Inflight Event / Encounter CFTT / CFIT Inflight Event / Encounter Unstabilized Approach

Narrative:

Short final; roughly 1000 - 1100 ft; on VASI; 3 red over white; got altitude alert from tower. Arrested rate of descent landed without incident.

Original NASA ASRS Text

Title: B737 Captain reported getting low on approach to landing.

Narrative: Short final; roughly 1000 - 1100 ft; on VASI; 3 red over white; got altitude alert from tower. Arrested rate of descent landed without incident.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.