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Ground frequency intended to be preloaded for future use is entered in active radio resulting in landing at sfo without tower communication and possibly without landing clearance.
| Attributes | |
| ACN | 527960 |
| Time | |
| Date | 200110 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sfo.airport |
| State Reference | CA |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Flight Phase | landing : roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 150 flight time total : 8000 flight time type : 2300 |
| ASRS Report | 527960 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : far non adherence : published procedure |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On approach to runway 28R in sfo we checked in with tower and were given landing clearance. I was the flying pilot. Somewhere during the approach the captain accidentally inserted the ground frequency over the active tower frequency. After landing we held short of runway 28L and I started to realize I was hearing ground control on the radio. I switched to tower and checked in and he asked if we had received a landing clearance and I replied truthfully that I thought we had. We were told to cross runway 28L and contact ground. I think the lesson learned here is that during approach it is not a good idea to preset ground control frequency because of the high workload.
Original NASA ASRS Text
Title: GND FREQUENCY INTENDED TO BE PRELOADED FOR FUTURE USE IS ENTERED IN ACTIVE RADIO RESULTING IN LNDG AT SFO WITHOUT TWR COM AND POSSIBLY WITHOUT LNDG CLRNC.
Narrative: ON APCH TO RWY 28R IN SFO WE CHKED IN WITH TWR AND WERE GIVEN LNDG CLRNC. I WAS THE FLYING PLT. SOMEWHERE DURING THE APCH THE CAPT ACCIDENTALLY INSERTED THE GND FREQUENCY OVER THE ACTIVE TWR FREQUENCY. AFTER LNDG WE HELD SHORT OF RWY 28L AND I STARTED TO REALIZE I WAS HEARING GND CTL ON THE RADIO. I SWITCHED TO TWR AND CHKED IN AND HE ASKED IF WE HAD RECEIVED A LNDG CLRNC AND I REPLIED TRUTHFULLY THAT I THOUGHT WE HAD. WE WERE TOLD TO CROSS RWY 28L AND CONTACT GND. I THINK THE LESSON LEARNED HERE IS THAT DURING APCH IT IS NOT A GOOD IDEA TO PRESET GND CTL FREQUENCY BECAUSE OF THE HIGH WORKLOAD.
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.