Air carrier first officer conducting a visual approach into ont reported receiving a terrain alert.

Attributes
ACN	1551307
Time
Date	201806
Local Time Of Day	1801-2400
Place
Locale Reference	SCT.TRACON
State Reference	CA
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	Large Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	Visual Approach
Flight Plan	IFR
Person 1
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 140 Flight Crew Total 12360 Flight Crew Type 10969
Events
Anomaly	Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT

Narrative:

I was descending into the airport via an RNAV STAR. The field was in sight and we were cleared for the visual approach. As briefed; we proceeded direct to the final approach fix and set 2;900 feet. Pilot flying hand flew and began an easy descent with terrain in sight. We unexpectedly received a GPWS 'terrain terrain pull up pull up.' the pilot flying added power and adjusted descent rate. The lowest radar altimeter altitude seen was 1;300 feet. As pilot monitoring I was never concerned with the flight path or descent until the warning and felt the pilot flying correctly handled the situation. We never received any egpws warning.

Original NASA ASRS Text

Title: Air carrier First Officer conducting a Visual Approach into ONT reported receiving a Terrain Alert.

Narrative: I was descending into the airport via an RNAV STAR. The field was in sight and we were cleared for the Visual Approach. As briefed; we proceeded direct to the Final Approach fix and set 2;900 feet. Pilot Flying hand flew and began an easy descent with terrain in sight. We unexpectedly received a GPWS 'TERRAIN TERRAIN PULL UP PULL UP.' The Pilot Flying added power and adjusted descent rate. The lowest RADAR ALTIMETER altitude seen was 1;300 feet. As Pilot Monitoring I was never concerned with the flight path or descent until the warning and felt the Pilot Flying correctly handled the situation. We never received any EGPWS warning.

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.