Commercial Fixed Wing
Flight Crew Last 90 Days 113
Situational Awareness
Inflight Event / Encounter CFTT / CFIT
Flight Crew Executed Go Around / Missed Approach; Flight Crew FLC complied w / Automation / Advisory
Aircraft; Human Factors
While executing the VOR RWY 18 Approach into CRP; we received a Caution Obstacle GPWS warning prior to reaching the charted step down fix. A missed approach was performed and we were vectored for an ILS to RWY 36 resulting in an uneventful landing. Prior to receiving the Caution the crew had crosschecked the inbound VOR course using the FMC/LNAV system and determined that we were well established on course. The descent rate at the time of the 'Caution' was approximately 300 fpm.
An Air Carrier Captain reported receiving GPWS obstacle warning on VOR Runway 18 approach to CRP.