 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
C182RG experiences track deviation when front course ILS is attempted with the autoplt sensing switch in the back course mode.
| Attributes | |
| ACN | 696659 |
| Time | |
| Date | 200605 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sts.airport |
| State Reference | CA |
| Altitude | msl bound lower : 1800 msl bound upper : 1900 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa.artcc |
| Operator | general aviation : personal |
| Make Model Name | Skylane 182/RG Turbo Skylane/RG |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | ils localizer only : 32 other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : multi engine pilot : instrument pilot : cfi |
| Experience | flight time last 90 days : 30 flight time total : 5000 flight time type : 1000 |
| ASRS Report | 696659 |
| Person 2 | |
| Affiliation | other |
| Function | observation : passenger |
| Events | |
| Anomaly | aircraft equipment problem : critical non adherence : published procedure non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued advisory |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Passenger Human Performance Aircraft |
| Primary Problem | Passenger Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After receiving clearance for the sts runway 32 ILS; I switched the garmin 530 GPS navigator from GPS to localizer mode and got a reverse sensing on the HSI. Center advised we were west of course and not correcting. At that point I should have been at 1900 ft. At 1800 ft I saw the problem and canceled IFR in VFR conditions. The problem lies in the autoplt reverse sensing switch being activated accidentally by my right seat passenger; giving a false localizer sensing. Part of my pre-landing checklist in this aircraft will now include 'autoplt reverse sensing -- off.'
Original NASA ASRS Text
Title: C182RG EXPERIENCES TRACK DEV WHEN FRONT COURSE ILS IS ATTEMPTED WITH THE AUTOPLT SENSING SWITCH IN THE BACK COURSE MODE.
Narrative: AFTER RECEIVING CLRNC FOR THE STS RWY 32 ILS; I SWITCHED THE GARMIN 530 GPS NAVIGATOR FROM GPS TO LOC MODE AND GOT A REVERSE SENSING ON THE HSI. CTR ADVISED WE WERE W OF COURSE AND NOT CORRECTING. AT THAT POINT I SHOULD HAVE BEEN AT 1900 FT. AT 1800 FT I SAW THE PROB AND CANCELED IFR IN VFR CONDITIONS. THE PROB LIES IN THE AUTOPLT REVERSE SENSING SWITCH BEING ACTIVATED ACCIDENTALLY BY MY R SEAT PAX; GIVING A FALSE LOC SENSING. PART OF MY PRE-LNDG CHKLIST IN THIS ACFT WILL NOW INCLUDE 'AUTOPLT REVERSE SENSING -- OFF.'
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.