The flight crew lands with RVV one fourth mi for their runway 30 and prevailing visibility one half ...

Attributes
ACN	325320
Time
Date	199601
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bfl
State Reference	CA
Altitude	msl bound lower : 2500 msl bound upper : 2500
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : bfl tower : mem
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 120 flight time total : 3800
ASRS Report	325320
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was the first officer and PF on approach into bakersfield, ca. We were on vectors for the ILS DME runway 30R bfl. Current sequence reports stated WX was ceiling 100 ft overcast visibility 1/2 mi. We received our final vector to join the localizer outside the final approach fix. Additionally, the controller stated RVV for runway '30R' was 1/4 mi. I stated to the captain that I felt we could not accept the approach clearance based on this 'RVV report' and still being outside the FAF. To be totally honest however, I was not sure about this because I have never received an RVV report (it was always RVR). I knew RVR is controling over prevailing visibility but I was unsure if RVV was controling. The captain stated he was confident we could accept this approach based on 1/2 mi prevailing visibility and that the RVV was not controling. At this point I agreed with the captain and we took the approach. At the completion of my shift I referred to the airman's information manual to find that RVV is indeed controling over prevailing visibility and that we should have not accepted the approach clearance. Although I regularly review the 'aim,' apparently I do not review it regularly enough!

Original NASA ASRS Text

Title: THE FLC LANDS WITH RVV ONE FOURTH MI FOR THEIR RWY 30 AND PREVAILING VISIBILITY ONE HALF MI. THE MINIMUMS ARE ONE HALF MI AND THE CREW LANDED ON THE BASIS OF THE PREVAILING VISIBILITY.

Narrative: I WAS THE FO AND PF ON APCH INTO BAKERSFIELD, CA. WE WERE ON VECTORS FOR THE ILS DME RWY 30R BFL. CURRENT SEQUENCE RPTS STATED WX WAS CEILING 100 FT OVCST VISIBILITY 1/2 MI. WE RECEIVED OUR FINAL VECTOR TO JOIN THE LOC OUTSIDE THE FINAL APCH FIX. ADDITIONALLY, THE CTLR STATED RVV FOR RWY '30R' WAS 1/4 MI. I STATED TO THE CAPT THAT I FELT WE COULD NOT ACCEPT THE APCH CLRNC BASED ON THIS 'RVV RPT' AND STILL BEING OUTSIDE THE FAF. TO BE TOTALLY HONEST HOWEVER, I WAS NOT SURE ABOUT THIS BECAUSE I HAVE NEVER RECEIVED AN RVV RPT (IT WAS ALWAYS RVR). I KNEW RVR IS CTLING OVER PREVAILING VISIBILITY BUT I WAS UNSURE IF RVV WAS CTLING. THE CAPT STATED HE WAS CONFIDENT WE COULD ACCEPT THIS APCH BASED ON 1/2 MI PREVAILING VISIBILITY AND THAT THE RVV WAS NOT CTLING. AT THIS POINT I AGREED WITH THE CAPT AND WE TOOK THE APCH. AT THE COMPLETION OF MY SHIFT I REFERRED TO THE AIRMAN'S INFO MANUAL TO FIND THAT RVV IS INDEED CTLING OVER PREVAILING VISIBILITY AND THAT WE SHOULD HAVE NOT ACCEPTED THE APCH CLRNC. ALTHOUGH I REGULARLY REVIEW THE 'AIM,' APPARENTLY I DO NOT REVIEW IT REGULARLY ENOUGH!

Data retrieved from NASA's ASRS site as of July 2007 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.

The flight crew lands with RVV one fourth mi for their runway 30 and prevailing visibility one half mi. The minimums are one half mi and the crew landed on the basis of the prevailing visibility.