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Mistuned VOR receiver while transiting lax class B results in confusion and multiple ATC assists for C182 pilot.
| Attributes | |
| ACN | 694273 |
| Time | |
| Date | 200604 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : lax.vortac |
| State Reference | CA |
| Altitude | msl single value : 5500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon tower : dpa.tower |
| Operator | general aviation : personal |
| Make Model Name | Skylane 182/RG Turbo Skylane/RG |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | None |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : private |
| Experience | flight time last 90 days : 25 flight time total : 304 flight time type : 200 |
| ASRS Report | 694273 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Events | |
| Anomaly | aircraft equipment problem : critical airspace violation : entry altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : published procedure other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance controller : issued advisory controller : provided flight assist |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | ATC Human Performance Airport Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I was en route from prb to crq at 9500 ft. At approximately 20 NM northwest of lax; approach asked how I would like to transition lax bravo. I requested 'the shoreline route.' approach asked if I knew the altitude for the shoreline. I answered that I thought they were going to assign me an altitude (as stated on the tac inset). ATC informed the altitude for the shoreline route is 5500 ft and if I wanted to maintain 9500 ft I should choose a different class B transition. Not having studied the other transitions I chose to stay with the shoreline route and descend; and was cleared through lax bravo at 5500 ft via the shoreline route. I made a rapid descent to 5500 ft. I attempted to intercept the lax 323 degree radial as I was descending. I mistakenly had vny 113.1 tuned in instead of lax 113.6. I was unable to intercept the radial due to my error and was radar vectored to the radial. I was still unable to reintercept the radial due to having the incorrect frequency tuned in; and was radar vectored again. During this time I had also inadvertently descended to 5100 ft; which I corrected; after being prompted. At this time the controller asked 'if I was familiar' with the shoreline route. I answered no; interping 'familiar' meaning had I used the shoreline before. I had studied the chart but it was my first time flying the 'shoreline.' he informed me that I had accepted a clearance and if I wasn't familiar; then I should not have accepted the clearance. At this point I was exiting the lax bravo and I realized my radios had the wrong frequency. The controller had been very patient throughout.
Original NASA ASRS Text
Title: MISTUNED VOR RECEIVER WHILE TRANSITING LAX CLASS B RESULTS IN CONFUSION AND MULTIPLE ATC ASSISTS FOR C182 PLT.
Narrative: I WAS ENRTE FROM PRB TO CRQ AT 9500 FT. AT APPROX 20 NM NW OF LAX; APCH ASKED HOW I WOULD LIKE TO TRANSITION LAX BRAVO. I REQUESTED 'THE SHORELINE RTE.' APCH ASKED IF I KNEW THE ALT FOR THE SHORELINE. I ANSWERED THAT I THOUGHT THEY WERE GOING TO ASSIGN ME AN ALT (AS STATED ON THE TAC INSET). ATC INFORMED THE ALT FOR THE SHORELINE RTE IS 5500 FT AND IF I WANTED TO MAINTAIN 9500 FT I SHOULD CHOOSE A DIFFERENT CLASS B TRANSITION. NOT HAVING STUDIED THE OTHER TRANSITIONS I CHOSE TO STAY WITH THE SHORELINE RTE AND DSND; AND WAS CLRED THROUGH LAX BRAVO AT 5500 FT VIA THE SHORELINE RTE. I MADE A RAPID DSCNT TO 5500 FT. I ATTEMPTED TO INTERCEPT THE LAX 323 DEG RADIAL AS I WAS DSNDING. I MISTAKENLY HAD VNY 113.1 TUNED IN INSTEAD OF LAX 113.6. I WAS UNABLE TO INTERCEPT THE RADIAL DUE TO MY ERROR AND WAS RADAR VECTORED TO THE RADIAL. I WAS STILL UNABLE TO REINTERCEPT THE RADIAL DUE TO HAVING THE INCORRECT FREQ TUNED IN; AND WAS RADAR VECTORED AGAIN. DURING THIS TIME I HAD ALSO INADVERTENTLY DSNDED TO 5100 FT; WHICH I CORRECTED; AFTER BEING PROMPTED. AT THIS TIME THE CTLR ASKED 'IF I WAS FAMILIAR' WITH THE SHORELINE RTE. I ANSWERED NO; INTERPING 'FAMILIAR' MEANING HAD I USED THE SHORELINE BEFORE. I HAD STUDIED THE CHART BUT IT WAS MY FIRST TIME FLYING THE 'SHORELINE.' HE INFORMED ME THAT I HAD ACCEPTED A CLRNC AND IF I WASN'T FAMILIAR; THEN I SHOULD NOT HAVE ACCEPTED THE CLRNC. AT THIS POINT I WAS EXITING THE LAX BRAVO AND I REALIZED MY RADIOS HAD THE WRONG FREQ. THE CTLR HAD BEEN VERY PATIENT THROUGHOUT.
Data retrieved from NASA's ASRS site as of January 2009 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.