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An LJ55 flight crew departing from dca experienced a short period of lost communication after setting in the wrong frequency for departure control.
| Attributes | |
| ACN | 433946 |
| Time | |
| Date | 199904 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : dca.vor |
| State Reference | VA |
| Altitude | msl single value : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dca.tracon tower : dca.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Learjet 55 |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : initial |
| Route In Use | departure : noise abatement |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain instruction : instructor oversight : pic |
| Qualification | pilot : multi engine pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 150 flight time total : 12000 flight time type : 5300 |
| ASRS Report | 433946 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : first officer instruction : trainee |
| Qualification | pilot : instrument pilot : commercial pilot : multi engine |
| Events | |
| Anomaly | non adherence : published procedure non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : became reoriented |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Copilot copied departure frequency 126.65 when issued clearance by dca. Our en route course was to be eastbound, so the 2 listed departure frequencys of 125.65 and 126.55 appeared similar enough that the incorrect frequency went unnoticed. This resulted in a period of lost communication after takeoff while we got things straightened out. These 2 frequencys are too similar to be assigned to such a similar routing.
Original NASA ASRS Text
Title: AN LJ55 FLC DEPARTING FROM DCA EXPERIENCED A SHORT PERIOD OF LOST COM AFTER SETTING IN THE WRONG FREQ FOR DEP CTL.
Narrative: COPLT COPIED DEP FREQ 126.65 WHEN ISSUED CLRNC BY DCA. OUR ENRTE COURSE WAS TO BE EBOUND, SO THE 2 LISTED DEP FREQS OF 125.65 AND 126.55 APPEARED SIMILAR ENOUGH THAT THE INCORRECT FREQ WENT UNNOTICED. THIS RESULTED IN A PERIOD OF LOST COM AFTER TKOF WHILE WE GOT THINGS STRAIGHTENED OUT. THESE 2 FREQS ARE TOO SIMILAR TO BE ASSIGNED TO SUCH A SIMILAR ROUTING.
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.