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While still on approach to the runway, the flight crew inadvertently switched frequencys from local control to ground control. Local was unable to communicate with them when they landed. Ground told them to contact local since they were still within local control's area of responsibility. No other problems encountered.
| Attributes | |
| ACN | 420860 |
| Time | |
| Date | 199811 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : sfo airport : sfo |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-83 |
| Navigation In Use | Other |
| Flight Phase | landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 150 flight time total : 10000 flight time type : 5000 |
| ASRS Report | 420860 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
I was flying the ILS runway 19L at night, low level windshear reported, light rain. On short final, after receiving landing clearance, the first officer somehow changed the communication radio frequency selector from tower to ground. After landing, we were holding short of runway 19R when ground control told us to contact tower. I was surprised we weren't still with tower. Anyway, sfo tower made it clear they were unhappy with our untimely frequency change, which I completely understand. Fortunately, there were no conflicts or problems created. The first officer and I had a talk on priorities during an approach, especially a challenging one, and the need to be more thoughtful of switch moving. This first officer was relatively new to the aircraft and the airline. Lesson learned.
Original NASA ASRS Text
Title: WHILE STILL ON APCH TO THE RWY, THE FLC INADVERTENTLY SWITCHED FREQS FROM LCL CTL TO GND CTL. LCL WAS UNABLE TO COMMUNICATE WITH THEM WHEN THEY LANDED. GND TOLD THEM TO CONTACT LCL SINCE THEY WERE STILL WITHIN LCL CTL'S AREA OF RESPONSIBILITY. NO OTHER PROBS ENCOUNTERED.
Narrative: I WAS FLYING THE ILS RWY 19L AT NIGHT, LOW LEVEL WINDSHEAR RPTED, LIGHT RAIN. ON SHORT FINAL, AFTER RECEIVING LNDG CLRNC, THE FO SOMEHOW CHANGED THE COM RADIO FREQ SELECTOR FROM TWR TO GND. AFTER LNDG, WE WERE HOLDING SHORT OF RWY 19R WHEN GND CTL TOLD US TO CONTACT TWR. I WAS SURPRISED WE WEREN'T STILL WITH TWR. ANYWAY, SFO TWR MADE IT CLR THEY WERE UNHAPPY WITH OUR UNTIMELY FREQ CHANGE, WHICH I COMPLETELY UNDERSTAND. FORTUNATELY, THERE WERE NO CONFLICTS OR PROBS CREATED. THE FO AND I HAD A TALK ON PRIORITIES DURING AN APCH, ESPECIALLY A CHALLENGING ONE, AND THE NEED TO BE MORE THOUGHTFUL OF SWITCH MOVING. THIS FO WAS RELATIVELY NEW TO THE ACFT AND THE AIRLINE. LESSON LEARNED.
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.