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First officer of air carrier large transport says that captain's failure to monitor the correct radio led the first officer to believe that the captain had heard an ATC descent and crossing restriction clearance. In fact, the captain had not heard the clearance, and thought only that he was to descend without restriction.
| Attributes | |
| ACN | 137254 |
| Time | |
| Date | 199002 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pie |
| State Reference | FL |
| Altitude | msl bound lower : 13000 msl bound upper : 16000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma tower : mkc |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : commercial pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 180 flight time total : 10000 flight time type : 1300 |
| ASRS Report | 137254 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : undershoot non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On our return flight to tampa, we were given a crossing restriction of 40 west of pie at 13000'. The captain was using the #2 radio (communication) for comm, I was using the #1 radio (communication) - the standard procedure. The #2 radio was turned to the ATIS frequency, not realizing that the captain was using it for communication. Upon seeing me reset the altitude alerter to 13000', he asked me if they wanted us down now. I told him 'yes'. I felt that he was on #2 radio when he questioned me about the altitude, but I didn't realize that he had missed the entire communication, he only questioned about if they wanted us down now. I realized the miss communication when we crossed 40 DME at 16-15000'. If the captain hadn't been jumping from #1 radio to #2 and back and forth. I don't think this would have happened.
Original NASA ASRS Text
Title: FO OF ACR LGT SAYS THAT CAPT'S FAILURE TO MONITOR THE CORRECT RADIO LED THE FO TO BELIEVE THAT THE CAPT HAD HEARD AN ATC DESCENT AND CROSSING RESTRICTION CLRNC. IN FACT, THE CAPT HAD NOT HEARD THE CLRNC, AND THOUGHT ONLY THAT HE WAS TO DESCEND WITHOUT RESTRICTION.
Narrative: ON OUR RETURN FLT TO TAMPA, WE WERE GIVEN A XING RESTRICTION OF 40 W OF PIE AT 13000'. THE CAPT WAS USING THE #2 RADIO (COM) FOR COMM, I WAS USING THE #1 RADIO (COM) - THE STANDARD PROC. THE #2 RADIO WAS TURNED TO THE ATIS FREQ, NOT REALIZING THAT THE CAPT WAS USING IT FOR COM. UPON SEEING ME RESET THE ALT ALERTER TO 13000', HE ASKED ME IF THEY WANTED US DOWN NOW. I TOLD HIM 'YES'. I FELT THAT HE WAS ON #2 RADIO WHEN HE QUESTIONED ME ABOUT THE ALT, BUT I DIDN'T REALIZE THAT HE HAD MISSED THE ENTIRE COM, HE ONLY QUESTIONED ABOUT IF THEY WANTED US DOWN NOW. I REALIZED THE MISS COM WHEN WE CROSSED 40 DME AT 16-15000'. IF THE CAPT HADN'T BEEN JUMPING FROM #1 RADIO TO #2 AND BACK AND FORTH. I DON'T THINK THIS WOULD HAVE HAPPENED.
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.