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Air carrier B737 flight crew acknowledged for frequency change, but keyed up incorrect frequency and missed timely altitude descent.
| Attributes | |
| ACN | 409370 |
| Time | |
| Date | 199807 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : mip |
| State Reference | PA |
| Altitude | msl bound lower : 18000 msl bound upper : 18000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny tower : stl |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 130 flight time total : 7730 flight time type : 1150 |
| ASRS Report | 409370 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
(Communication problem when changing frequency.) the new frequency was read back, but it was not corrected and ended up to be the wrong one. This resulted in missing a descent and we came out of the sequence. If the wrong frequency was caught on the readback, this would not have happened.
Original NASA ASRS Text
Title: ACR B737 FLC ACKNOWLEDGED FOR FREQ CHANGE, BUT KEYED UP INCORRECT FREQ AND MISSED TIMELY ALT DSCNT.
Narrative: (COM PROB WHEN CHANGING FREQ.) THE NEW FREQ WAS READ BACK, BUT IT WAS NOT CORRECTED AND ENDED UP TO BE THE WRONG ONE. THIS RESULTED IN MISSING A DSCNT AND WE CAME OUT OF THE SEQUENCE. IF THE WRONG FREQ WAS CAUGHT ON THE READBACK, THIS WOULD NOT HAVE HAPPENED.
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.