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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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An air carrier MD80 flight crew track the wrong navigation radio aid and got off course. An alert controller brought this to their attention.
| Attributes | |
| ACN | 377750 |
| Time | |
| Date | 199708 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : lax |
| State Reference | CA |
| Altitude | msl bound lower : 14000 msl bound upper : 14000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : lax |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 377750 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| ASRS Report | 377749 |
| Events | |
| Anomaly | non adherence : far non adherence : clearance non adherence : published procedure other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Inbound to lax prior to civet we were tracking the lax VOR radial. At civet we failed to switch to the ILS course and looking at the profile it's not clear whether to track the localizer or VOR. If you read the arrival section it does specify the localizer course at civet. Supplemental information from acn 377749: at civet we failed to switch to lax localizer. While intercepting the localizer socal approach told us we were north of course. We calculated we were approximately 1 mi north of course at the time. Socal stated there was no problem on a subsequent phone call. The arrival note on the civet arrival page specifies the localizer. The difference between the two can have you tracking north of the localizer course. When all else fails read the instructions.
Original NASA ASRS Text
Title: AN ACR MD80 FLC TRACK THE WRONG NAV RADIO AID AND GOT OFF COURSE. AN ALERT CTLR BROUGHT THIS TO THEIR ATTN.
Narrative: INBOUND TO LAX PRIOR TO CIVET WE WERE TRACKING THE LAX VOR RADIAL. AT CIVET WE FAILED TO SWITCH TO THE ILS COURSE AND LOOKING AT THE PROFILE IT'S NOT CLR WHETHER TO TRACK THE LOC OR VOR. IF YOU READ THE ARR SECTION IT DOES SPECIFY THE LOC COURSE AT CIVET. SUPPLEMENTAL INFO FROM ACN 377749: AT CIVET WE FAILED TO SWITCH TO LAX LOC. WHILE INTERCEPTING THE LOC SOCAL APCH TOLD US WE WERE N OF COURSE. WE CALCULATED WE WERE APPROX 1 MI N OF COURSE AT THE TIME. SOCAL STATED THERE WAS NO PROB ON A SUBSEQUENT PHONE CALL. THE ARR NOTE ON THE CIVET ARR PAGE SPECIFIES THE LOC. THE DIFFERENCE BTWN THE TWO CAN HAVE YOU TRACKING N OF THE LOC COURSE. WHEN ALL ELSE FAILS READ THE INSTRUCTIONS.
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.