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Medium large transport air carrier PIC experienced difficulties receiving and tracking the mol VORTAC 065 degree radial off dca climbing to FL210. Unable to receive J42 or J48 until within 35 mi of mol.
| Attributes | |
| ACN | 83676 |
| Time | |
| Date | 198803 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : mol |
| State Reference | VA |
| Altitude | msl bound lower : 21000 msl bound upper : 21000 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | other vortac other vortac |
| Flight Phase | climbout : initial climbout : intermediate altitude cruise other |
| Route In Use | departure other enroute : direct enroute airway : zdc |
| 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 : 8400 |
| ASRS Report | 83676 |
| Person 2 | |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Navigational Facility |
| Air Traffic Incident | other |
| Situations | |
| Navigational Aid | Unspecified |
Narrative:
On departure from dca, ATC cleared flight to intercept mol (montebello) 065 degree right direct. We were unable to track 065 degree right from the east due to interference from ipt (williamsport) on same frequency. ATC reports they are aware of situation. Navigation on J48 and J42 east of mol is impossible until within 35 NM of VOR.
Original NASA ASRS Text
Title: MLG ACR PIC EXPERIENCED DIFFICULTIES RECEIVING AND TRACKING THE MOL VORTAC 065 DEGREE RADIAL OFF DCA CLIMBING TO FL210. UNABLE TO RECEIVE J42 OR J48 UNTIL WITHIN 35 MI OF MOL.
Narrative: ON DEP FROM DCA, ATC CLRED FLT TO INTERCEPT MOL (MONTEBELLO) 065 DEG R DIRECT. WE WERE UNABLE TO TRACK 065 DEG R FROM THE EAST DUE TO INTERFERENCE FROM IPT (WILLIAMSPORT) ON SAME FREQ. ATC RPTS THEY ARE AWARE OF SITUATION. NAV ON J48 AND J42 EAST OF MOL IS IMPOSSIBLE UNTIL WITHIN 35 NM OF VOR.
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.