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A B757 flight crew continued to taxi without a clearance after they were unable to contact ground control on the assigned frequency. Allegedly, the B757's movement without a clearance caused another aircraft to brake hard. After the crew arrived at the ramp, they were told to contact the ATCT ground controller on another frequency who questioned their taxiing without a clearance.
| Attributes | |
| ACN | 329729 |
| Time | |
| Date | 199603 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : mia |
| State Reference | FL |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mia |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Brasilia EMB-120 All Series |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 329729 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| ASRS Report | 329730 |
| Events | |
| Anomaly | conflict : ground less severe non adherence : clearance non adherence : far |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After clearing runway 12 at mia, we were instructed to contact ground control on 121.8, which we tried to do unsuccessfully. Since we cleared at taxiway V and were entering the ramp at 7, and since ramp had already cleared us into the ramp, we switched to ramp frequency and entered the ramp rather than block any possible traffic behind us. At the time there was no traffic on either the inner or the outer taxiway and there was traffic clearing at taxiway V behind us. Upon entering the ramp, ramp said to contact ground on 127.5. We did, and they gave us a lecture on taxiing the 50 yards or so, without clearance from them. Supplemental information from acn 329730: I twice attempted contact with miami ground on 121.8 with no success. The frequency was congested. After waiting for traffic to clear the alley we were cleared by ramp control to taxi to the gate and were told that ground control on 127.5 wanted a call. I contacted ground control and was informed that we had been blocking traffic and required a clearance to taxi on the airport. Apparently we were assigned the wrong ground control frequency from miami tower. This was not apparent as we cleared runway 12 since 121.8 was congested and we received no reply. Supplemental information from acn 329721: aircraft #1 taxied to the ramp without clearance. Aircraft #2 had to hit brakes hard to stop.
Original NASA ASRS Text
Title: A B757 FLC CONTINUED TO TAXI WITHOUT A CLRNC AFTER THEY WERE UNABLE TO CONTACT GND CTL ON THE ASSIGNED FREQ. ALLEGEDLY, THE B757'S MOVEMENT WITHOUT A CLRNC CAUSED ANOTHER ACFT TO BRAKE HARD. AFTER THE CREW ARRIVED AT THE RAMP, THEY WERE TOLD TO CONTACT THE ATCT GND CTLR ON ANOTHER FREQ WHO QUESTIONED THEIR TAXIING WITHOUT A CLRNC.
Narrative: AFTER CLRING RWY 12 AT MIA, WE WERE INSTRUCTED TO CONTACT GND CTL ON 121.8, WHICH WE TRIED TO DO UNSUCCESSFULLY. SINCE WE CLRED AT TXWY V AND WERE ENTERING THE RAMP AT 7, AND SINCE RAMP HAD ALREADY CLRED US INTO THE RAMP, WE SWITCHED TO RAMP FREQ AND ENTERED THE RAMP RATHER THAN BLOCK ANY POSSIBLE TFC BEHIND US. AT THE TIME THERE WAS NO TFC ON EITHER THE INNER OR THE OUTER TXWY AND THERE WAS TFC CLRING AT TXWY V BEHIND US. UPON ENTERING THE RAMP, RAMP SAID TO CONTACT GND ON 127.5. WE DID, AND THEY GAVE US A LECTURE ON TAXIING THE 50 YARDS OR SO, WITHOUT CLRNC FROM THEM. SUPPLEMENTAL INFO FROM ACN 329730: I TWICE ATTEMPTED CONTACT WITH MIAMI GND ON 121.8 WITH NO SUCCESS. THE FREQ WAS CONGESTED. AFTER WAITING FOR TFC TO CLR THE ALLEY WE WERE CLRED BY RAMP CTL TO TAXI TO THE GATE AND WERE TOLD THAT GND CTL ON 127.5 WANTED A CALL. I CONTACTED GND CTL AND WAS INFORMED THAT WE HAD BEEN BLOCKING TFC AND REQUIRED A CLRNC TO TAXI ON THE ARPT. APPARENTLY WE WERE ASSIGNED THE WRONG GND CTL FREQ FROM MIAMI TWR. THIS WAS NOT APPARENT AS WE CLRED RWY 12 SINCE 121.8 WAS CONGESTED AND WE RECEIVED NO REPLY. SUPPLEMENTAL INFO FROM ACN 329721: ACFT #1 TAXIED TO THE RAMP WITHOUT CLRNC. ACFT #2 HAD TO HIT BRAKES HARD TO STOP.
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.