|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||airport : smx|
|Altitude||msl bound lower : 1680|
msl bound upper : 4600
|Controlling Facilities||tracon : vbg|
tower : smx
|Operator||general aviation : corporate|
|Make Model Name||Small Transport, Low Wing, 2 Recip Eng|
|Flight Phase||descent : approach|
|Route In Use||arrival other|
|Function||flight crew : single pilot|
|Qualification||pilot : commercial|
pilot : instrument
|Experience||flight time last 90 days : 30|
flight time total : 720
|Affiliation||government : faa|
|Function||controller : approach|
|Qualification||controller : radar|
|Anomaly||non adherence : published procedure|
other anomaly other
other spatial deviation
|Independent Detector||other flight crewa|
|Resolutory Action||flight crew : became reoriented|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
Departed gvo on 317 degree right to intercept backcourse localizer approach to smx. Was completely set up for approach, everything was tuned and identify etc. Noticed that I was having to fly east to intercept when it should have been west. Rechked frequency, noticed that #1 navigation display was wrong numeral, fumbled around for a flashlight to shine on photo cell and confirmed that it was in fact tuned to localizer. At this point I didn't realize that I had tuned #1 navigation (HSI) to backcourse so I told the tower that I was disoriented and where I was. I then looked down and could see the airport so I cancelled IFR and landed VFR. I think that a more complete review of each approach plate at destination airport before flight would help to keep this from recurring. Perhaps highlighting front course when flying with HSI. The added distraction of having the wrong numerical display appear with the correct audio identify was confusing at a crucial time.
Original NASA ASRS Text
Title: SMT PLT BECOMES DISORIENTATED ON BACKCOURSE APCH.
Narrative: DEPARTED GVO ON 317 DEG R TO INTERCEPT BACKCOURSE LOC APCH TO SMX. WAS COMPLETELY SET UP FOR APCH, EVERYTHING WAS TUNED AND IDENT ETC. NOTICED THAT I WAS HAVING TO FLY E TO INTERCEPT WHEN IT SHOULD HAVE BEEN W. RECHKED FREQ, NOTICED THAT #1 NAV DISPLAY WAS WRONG NUMERAL, FUMBLED AROUND FOR A FLASHLIGHT TO SHINE ON PHOTO CELL AND CONFIRMED THAT IT WAS IN FACT TUNED TO LOC. AT THIS POINT I DIDN'T REALIZE THAT I HAD TUNED #1 NAV (HSI) TO BACKCOURSE SO I TOLD THE TWR THAT I WAS DISORIENTED AND WHERE I WAS. I THEN LOOKED DOWN AND COULD SEE THE ARPT SO I CANCELLED IFR AND LANDED VFR. I THINK THAT A MORE COMPLETE REVIEW OF EACH APCH PLATE AT DEST ARPT BEFORE FLT WOULD HELP TO KEEP THIS FROM RECURRING. PERHAPS HIGHLIGHTING FRONT COURSE WHEN FLYING WITH HSI. THE ADDED DISTR OF HAVING THE WRONG NUMERICAL DISPLAY APPEAR WITH THE CORRECT AUDIO IDENT WAS CONFUSING AT A CRUCIAL TIME.
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.