Large Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 176; Flight Crew Total 11001; Flight Crew Type 3429
Inflight Event / Encounter CFTT / CFIT
Flight Crew FLC complied w / Automation / Advisory; Flight Crew Returned To Clearance
Procedure
While Flying the PSP RNAV Visual Runway 31L Approach at 7000 MSL over the fix SBONO we initiated our descent; while following VNAV guidance; to the next altitude of 6000 MSL for the point WEMIR. Approximately 6600 MSL the EGPWS annunciated 'PULL UP; TOO LOW TERRAIN.' Being in Day VMC with terrain visible; we immediately followed flight manual guidance; stopping the descent until warning ceased and terrain clearance was assured.  ATC was not informed as the cause was possibly attributed to a high terrain closure rate. We continued the approach to an uneventful landing. After landing we talked to the outbound Captain who related he had the same incident the previous night. In review; this approach should be reviewed for proper altitude/TERPS specifications.
During the RNAV Visual Runway 31L Approach to PSP; crew experienced an EGPWS 'too low terrain pull-up' warning and followed flight manual procedures for day/VMC EGPWS warning. Once the EGPWS warning ceased; crew continued approach to a normal landing. Crew recommends that the altitudes on this approach procedure be reviewed.