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A B747 had been deviating for WX and was cleared direct ign VOR for arrival to jfk. After VOR frequency selected, instrument indicated good signal for VOR and DME with no flags. Turn was initiated direct to RDMI indication when ATC advised to correct heading 130 degrees to left. Captain noted overlap from 2 vors 300 mi apart.
| Attributes | |
| ACN | 413620 |
| Time | |
| Date | 199809 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : ign |
| State Reference | NY |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 14000 flight time type : 6000 |
| ASRS Report | 413620 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | non adherence : clearance other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : became reoriented other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Navigational Facility |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After deviating for WX, ATC cleared us direct kingston (on the arrival to jfk). Tuned in 117.6, got strong signal (ie, no flags) and good DME. Started a turn to 240 degrees (direct or RMI). ATC advised heading should be 110 degrees. (There is an overlap between 2 vors about 300 ft apart.) (kingston VOR was not entered in INS as it was off flight plan.)
Original NASA ASRS Text
Title: A B747 HAD BEEN DEVIATING FOR WX AND WAS CLRED DIRECT IGN VOR FOR ARR TO JFK. AFTER VOR FREQ SELECTED, INST INDICATED GOOD SIGNAL FOR VOR AND DME WITH NO FLAGS. TURN WAS INITIATED DIRECT TO RDMI INDICATION WHEN ATC ADVISED TO CORRECT HDG 130 DEGS TO L. CAPT NOTED OVERLAP FROM 2 VORS 300 MI APART.
Narrative: AFTER DEVIATING FOR WX, ATC CLRED US DIRECT KINGSTON (ON THE ARR TO JFK). TUNED IN 117.6, GOT STRONG SIGNAL (IE, NO FLAGS) AND GOOD DME. STARTED A TURN TO 240 DEGS (DIRECT OR RMI). ATC ADVISED HDG SHOULD BE 110 DEGS. (THERE IS AN OVERLAP BTWN 2 VORS ABOUT 300 FT APART.) (KINGSTON VOR WAS NOT ENTERED IN INS AS IT WAS OFF FLT PLAN.)
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.