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Flight crew of widebody transport aircraft taxiing misinterps ramp clearance and ground clearance and taxies without clearance.
| Attributes | |
| ACN | 417970 |
| Time | |
| Date | 199810 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : lax airport : lax |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| 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 |
| Experience | flight time last 90 days : 230 flight time type : 3400 |
| ASRS Report | 417970 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | non adherence : far other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Long duty day. Had deadheaded to mco from lax to fly right back after landing. We were held between the runways. After a period of time, got clearance to cross runway and contact ground. Ground asked which gate we had, and we responded with the gate number. At that time, there were 2 aircraft in our alley. Ground asked if our ramp control wanted for us to wait for both aircraft to exit or after the first one. The first officer contacted our ramp control, who indicated that the second aircraft would hold for us. Thinking that we had clearance to the gate, I proceeded in. We were unable to contact ground because of congestion on the frequency. That's when ground asked 'why' we were taxiing. In fact, we never got a 'hold position' or 'hold at intersection' from ground. My better knowledge should have told me to hold position until we got clearance from ground. The big thing was that there is another taxiway that we had to cross that taxiing aircraft use and were using. Ground control should have given a 'hold position.'
Original NASA ASRS Text
Title: FLC OF WDB ACFT TAXIING MISINTERPS RAMP CLRNC AND GND CLRNC AND TAXIES WITHOUT CLRNC.
Narrative: LONG DUTY DAY. HAD DEADHEADED TO MCO FROM LAX TO FLY RIGHT BACK AFTER LNDG. WE WERE HELD BTWN THE RWYS. AFTER A PERIOD OF TIME, GOT CLRNC TO CROSS RWY AND CONTACT GND. GND ASKED WHICH GATE WE HAD, AND WE RESPONDED WITH THE GATE NUMBER. AT THAT TIME, THERE WERE 2 ACFT IN OUR ALLEY. GND ASKED IF OUR RAMP CTL WANTED FOR US TO WAIT FOR BOTH ACFT TO EXIT OR AFTER THE FIRST ONE. THE FO CONTACTED OUR RAMP CTL, WHO INDICATED THAT THE SECOND ACFT WOULD HOLD FOR US. THINKING THAT WE HAD CLRNC TO THE GATE, I PROCEEDED IN. WE WERE UNABLE TO CONTACT GND BECAUSE OF CONGESTION ON THE FREQ. THAT'S WHEN GND ASKED 'WHY' WE WERE TAXIING. IN FACT, WE NEVER GOT A 'HOLD POS' OR 'HOLD AT INTXN' FROM GND. MY BETTER KNOWLEDGE SHOULD HAVE TOLD ME TO HOLD POS UNTIL WE GOT CLRNC FROM GND. THE BIG THING WAS THAT THERE IS ANOTHER TXWY THAT WE HAD TO CROSS THAT TAXIING ACFT USE AND WERE USING. GND CTL SHOULD HAVE GIVEN A 'HOLD POS.'
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.