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Medium large transport experiences difficulty tracking AR14 southbound between diw NDB and metta intersection.
| Attributes | |
| ACN | 128983 |
| Time | |
| Date | 198911 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : diw |
| State Reference | NC |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport |
| Navigation In Use | other ndb |
| Flight Phase | cruise other |
| Route In Use | enroute airway : ar14 enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 40 flight time total : 20000 |
| ASRS Report | 128983 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : became reoriented flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Navigational Facility |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| Navigational Aid | Unspecified |
Narrative:
Unintentional navigation error (estimated 10-15 NM while navigating ar-14 from diw NDB to metta intersection). NDB bearings 'wandering' +/- 20 degree from 208 degree bearing. When chs VOR/DME avail for xchk approaching metta error noticed and corrected. After returning to track ar-1 ATC said 'have you back on centerline, change to frequency...'. That was first and only comment from ATC.
Original NASA ASRS Text
Title: MLG EXPERIENCES DIFFICULTY TRACKING AR14 SOUTHBOUND BETWEEN DIW NDB AND METTA INTERSECTION.
Narrative: UNINTENTIONAL NAV ERROR (ESTIMATED 10-15 NM WHILE NAVIGATING AR-14 FROM DIW NDB TO METTA INTXN). NDB BEARINGS 'WANDERING' +/- 20 DEG FROM 208 DEG BEARING. WHEN CHS VOR/DME AVAIL FOR XCHK APCHING METTA ERROR NOTICED AND CORRECTED. AFTER RETURNING TO TRACK AR-1 ATC SAID 'HAVE YOU BACK ON CENTERLINE, CHANGE TO FREQ...'. THAT WAS FIRST AND ONLY COMMENT FROM ATC.
Data retrieved from NASA's ASRS site as of August 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.