Narrative:

We were cleared for the localizer runway 11 approach into sbp from mqo VOR. We proceeded outbound from the VOR on V27 to 'frams'. At 'frams' we followed the published procedure by turning right to a 048 degree heading to intercept the localizer outside of crepe. The wind blew us left off course, so we were correcting back to intercept the localizer. 'Crepe' was set up in the #2 navigation (mqo-307 degree radial). Before we were established on the localizer, we crossed the mqo-307 degree radial. We then believed we were inside 'crepe,' however we did not yet descend from 4000 ft to 2300 ft because we were not yet established. We did, however, tune the #2 navigation to the mqo-355 degree radial for 'dobra.' we did this because we believed we were inside 'crepe.' when we were established on the localizer, we then descended to 2300 ft (I believe we were inside 'crepe' since we had already crossed the mqo 307 degree radial). At 2300 ft, ZLA advised us that we should be at 4000 ft. We retuned crepe and we immediately crossed the mqo 307 degree radial for a second time. We then got the airport in sight and landed safely in sbp. ZLA gave us a friendly 'good night.' we later discovered what had happened. There is only a 17 degree angle between the localizer runway 11 final approach course into sbp, and the mqo 307 degree radial. When we were blown left of course from 'frams' to 'crepe,' we were also blown across the mqo 307 degree radial. We thought we were inside 'crepe,' so we tuned in the next fix. From now on, I will use the prb 196 degree radial to identify 'crepe,' never again the mqo 307 degree radial. This is an extremely busy approach, and in this kind of WX, there are too many distrs. I feel the mqo 307 degree radial should no longer be used to identify 'crepe.'

Google
 

Original NASA ASRS Text

Title: TRACK DEV. ALTDEV.

Narrative: WE WERE CLRED FOR THE LOC RWY 11 APCH INTO SBP FROM MQO VOR. WE PROCEEDED OUTBOUND FROM THE VOR ON V27 TO 'FRAMS'. AT 'FRAMS' WE FOLLOWED THE PUBLISHED PROC BY TURNING R TO A 048 DEG HDG TO INTERCEPT THE LOC OUTSIDE OF CREPE. THE WIND BLEW US L OFF COURSE, SO WE WERE CORRECTING BACK TO INTERCEPT THE LOC. 'CREPE' WAS SET UP IN THE #2 NAV (MQO-307 DEG RADIAL). BEFORE WE WERE ESTABLISHED ON THE LOC, WE CROSSED THE MQO-307 DEG RADIAL. WE THEN BELIEVED WE WERE INSIDE 'CREPE,' HOWEVER WE DID NOT YET DSND FROM 4000 FT TO 2300 FT BECAUSE WE WERE NOT YET ESTABLISHED. WE DID, HOWEVER, TUNE THE #2 NAV TO THE MQO-355 DEG RADIAL FOR 'DOBRA.' WE DID THIS BECAUSE WE BELIEVED WE WERE INSIDE 'CREPE.' WHEN WE WERE ESTABLISHED ON THE LOC, WE THEN DSNDED TO 2300 FT (I BELIEVE WE WERE INSIDE 'CREPE' SINCE WE HAD ALREADY CROSSED THE MQO 307 DEG RADIAL). AT 2300 FT, ZLA ADVISED US THAT WE SHOULD BE AT 4000 FT. WE RETUNED CREPE AND WE IMMEDIATELY CROSSED THE MQO 307 DEG RADIAL FOR A SECOND TIME. WE THEN GOT THE ARPT IN SIGHT AND LANDED SAFELY IN SBP. ZLA GAVE US A FRIENDLY 'GOOD NIGHT.' WE LATER DISCOVERED WHAT HAD HAPPENED. THERE IS ONLY A 17 DEG ANGLE BTWN THE LOC RWY 11 FINAL APCH COURSE INTO SBP, AND THE MQO 307 DEG RADIAL. WHEN WE WERE BLOWN L OF COURSE FROM 'FRAMS' TO 'CREPE,' WE WERE ALSO BLOWN ACROSS THE MQO 307 DEG RADIAL. WE THOUGHT WE WERE INSIDE 'CREPE,' SO WE TUNED IN THE NEXT FIX. FROM NOW ON, I WILL USE THE PRB 196 DEG RADIAL TO IDENT 'CREPE,' NEVER AGAIN THE MQO 307 DEG RADIAL. THIS IS AN EXTREMELY BUSY APCH, AND IN THIS KIND OF WX, THERE ARE TOO MANY DISTRS. I FEEL THE MQO 307 DEG RADIAL SHOULD NO LONGER BE USED TO IDENT 'CREPE.'

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.