 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An air carrier B737 flight crew copied a clearance meant for another air carrier. The last 3 numbers in both call signs were the same.
| Attributes | |
| ACN | 386650 |
| Time | |
| Date | 199711 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : fll |
| State Reference | FL |
| Altitude | msl bound lower : 20000 msl bound upper : 21500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 240 flight time total : 6500 flight time type : 800 |
| ASRS Report | 386650 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 6500 flight time type : 3000 |
| ASRS Report | 386649 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : far other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
Operating as an air carrier flight xyz and en route to fll on the fortl 3 STAR, we acknowledged a clearance to cross kubic intersection at 8000 ft. We initiated a descent at that time. Shortly thereafter, ZMA asked us to say altitude. We did -- it was FL215 and descending. Center responded 'negative, descend to FL200.' we complied with instructions. Possible confusion with another air carrier with xyz in call sign who was ahead and en route to fll as well. No conflict or other problems arose. We were unsure who made the mistake -- us or controller.
Original NASA ASRS Text
Title: AN ACR B737 FLC COPIED A CLRNC MEANT FOR ANOTHER ACR. THE LAST 3 NUMBERS IN BOTH CALL SIGNS WERE THE SAME.
Narrative: OPERATING AS AN ACR FLT XYZ AND ENRTE TO FLL ON THE FORTL 3 STAR, WE ACKNOWLEDGED A CLRNC TO CROSS KUBIC INTXN AT 8000 FT. WE INITIATED A DSCNT AT THAT TIME. SHORTLY THEREAFTER, ZMA ASKED US TO SAY ALT. WE DID -- IT WAS FL215 AND DSNDING. CTR RESPONDED 'NEGATIVE, DSND TO FL200.' WE COMPLIED WITH INSTRUCTIONS. POSSIBLE CONFUSION WITH ANOTHER ACR WITH XYZ IN CALL SIGN WHO WAS AHEAD AND ENRTE TO FLL AS WELL. NO CONFLICT OR OTHER PROBS AROSE. WE WERE UNSURE WHO MADE THE MISTAKE -- US OR CTLR.
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.