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A light twin pilot makes a couple of navigation errors on her cross country trip that revealed some areas of needed improvement in the knowledge of the autoplt near abe, PA.
| Attributes | |
| ACN | 514688 |
| Time | |
| Date | 200106 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : abe.tracon |
| State Reference | PA |
| Altitude | msl single value : 8000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : abe.tracon |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 2 Eng, Retractable Gear |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other other vortac |
| Flight Phase | cruise : level ground : parked |
| Route In Use | enroute airway : v149.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 5.1 flight time total : 462 flight time type : 5.1 |
| ASRS Report | 514688 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance controller : issued advisory |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
I had a clearance to fjc V149 lhy, missed the turn to lhy when the controller informed me I was 5 mi west of fjc and cleared me direct lhy. 2 days later my clearance was ggt V153 lhy, missed the turn to lhy when the controller informed me I had passed ggt, gave me a vector to join V153. Both instances were incorrect use of the autoplt. The first time, I had the autoplt set to heading, reached the waypoint and was waiting for the autoplt to turn us, but I had not turned the heading bug, thinking the autoplt would follow the GPS. The controller redirected me. I realized my error once I was on the ground and was reviewing what happened. I should have had the autoplt on omni. On the return trip, I set the autoplt to omni, but basically had the same error. Again, the controller redirected me. Once on the ground, again reviewing what happened, I realized I had not flipped the autoplt switch that enables it to be connected to either the VOR's or GPS -- it was in the 'off' position. The following leg was made using the autoplt without any navigation errors. Main problem -- relying on autoplt and not following the other equipment (VOR's) for situational awareness and incomplete understanding of the autoplt system. Correcting it: practice and understand system before using on another IFR trip maintain situational awareness at all times.
Original NASA ASRS Text
Title: A LIGHT TWIN PLT MAKES A COUPLE OF NAV ERRORS ON HER XCOUNTRY TRIP THAT REVEALED SOME AREAS OF NEEDED IMPROVEMENT IN THE KNOWLEDGE OF THE AUTOPLT NEAR ABE, PA.
Narrative: I HAD A CLRNC TO FJC V149 LHY, MISSED THE TURN TO LHY WHEN THE CTLR INFORMED ME I WAS 5 MI W OF FJC AND CLRED ME DIRECT LHY. 2 DAYS LATER MY CLRNC WAS GGT V153 LHY, MISSED THE TURN TO LHY WHEN THE CTLR INFORMED ME I HAD PASSED GGT, GAVE ME A VECTOR TO JOIN V153. BOTH INSTANCES WERE INCORRECT USE OF THE AUTOPLT. THE FIRST TIME, I HAD THE AUTOPLT SET TO HEADING, REACHED THE WAYPOINT AND WAS WAITING FOR THE AUTOPLT TO TURN US, BUT I HAD NOT TURNED THE HEADING BUG, THINKING THE AUTOPLT WOULD FOLLOW THE GPS. THE CTLR REDIRECTED ME. I REALIZED MY ERROR ONCE I WAS ON THE GND AND WAS REVIEWING WHAT HAPPENED. I SHOULD HAVE HAD THE AUTOPLT ON OMNI. ON THE RETURN TRIP, I SET THE AUTOPLT TO OMNI, BUT BASICALLY HAD THE SAME ERROR. AGAIN, THE CTLR REDIRECTED ME. ONCE ON THE GND, AGAIN REVIEWING WHAT HAPPENED, I REALIZED I HAD NOT FLIPPED THE AUTOPLT SWITCH THAT ENABLES IT TO BE CONNECTED TO EITHER THE VOR'S OR GPS -- IT WAS IN THE 'OFF' POS. THE FOLLOWING LEG WAS MADE USING THE AUTOPLT WITHOUT ANY NAV ERRORS. MAIN PROB -- RELYING ON AUTOPLT AND NOT FOLLOWING THE OTHER EQUIP (VOR'S) FOR SITUATIONAL AWARENESS AND INCOMPLETE UNDERSTANDING OF THE AUTOPLT SYS. CORRECTING IT: PRACTICE AND UNDERSTAND SYS BEFORE USING ON ANOTHER IFR TRIP MAINTAIN SITUATIONAL AWARENESS AT ALL TIMES.
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.