While flying the RNAV GPS 18 approach to F70 a medium sized turbo jet crew reported an egpws 'terrai...

Attributes
ACN	1265496
Time
Date	201505
Local Time Of Day	0601-1200
Place
Locale Reference	F70.Airport
State Reference	CA
Environment
Flight Conditions	Marginal
Light	Dawn
Aircraft 1
Make Model Name	Light Transport Low Wing 2 Turbojet Eng
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Person 2
Function	Captain Pilot Not Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Inflight Event / Encounter CFTT / CFIT Inflight Event / Encounter Weather / Turbulence

Narrative:

Weather was 1;000 feet ovc. So we shot the RNAV runway 18 approach. We crossed the FAF at 3;500 feet MSL and initiated descent to MDA; at approximately 1;000 feet AGL we received a 'terrain- pull up' GPWS warning. We initiated terrain avoidance procedure but as we were about to change configuration. We broke out to VMC conditions and continued the landing with terrain insight.in retrospect; french valley is surrounded by high terrain and ATC does not have radar below 3;000 feet MSL. You are it. We did not go below MDA and vertical guidance was not available until we became visual.. Without the GPWS you would have little warning that terrain was near. GPWS should be mandatory for this approach..

Original NASA ASRS Text

Title: While flying the RNAV GPS 18 Approach to F70 a medium sized turbo jet crew reported an EGPWS 'TERRAIN; PULL-UP' on profile at about 2;400 feet; past DISEY; with an 800 feet overcast. Terrain reference was obtained as the terrain avoidance maneuver was initiated so the flight continued to land.

Narrative: Weather was 1;000 feet OVC. So we shot the RNAV Runway 18 approach. We crossed the FAF at 3;500 feet MSL and initiated descent to MDA; at approximately 1;000 feet AGL we received a 'terrain- pull up' GPWS warning. We initiated terrain avoidance procedure but as we were about to change configuration. We broke out to VMC conditions and continued the landing with terrain insight.In retrospect; French Valley is surrounded by high terrain and ATC does not have radar below 3;000 feet MSL. You are it. We did not go below MDA and vertical guidance was not available until we became visual.. Without the GPWS you would have little warning that terrain was near. GPWS should be mandatory for this approach..

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.

While flying the RNAV GPS 18 approach to F70 a medium sized turbo jet crew reported an egpws 'terrain; pull-up' on profile at about 2;400 feet; past disey; with an 800 feet overcast. Terrain reference was obtained as the terrain avoidance maneuver was initiated so the flight continued to land.