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A low time in model medium large transport captain switched off ATC radio, inadvertently, while initiating a call to his company.
| Attributes | |
| ACN | 220146 |
| Time | |
| Date | 199209 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : bgm |
| State Reference | NY |
| Altitude | msl bound lower : 20000 msl bound upper : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny tracon : n90 |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 225 flight time total : 7000 flight time type : 1000 |
| ASRS Report | 220146 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 55 flight time total : 20000 flight time type : 95 |
| ASRS Report | 220149 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : clearance other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : became reoriented other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
I was flying aircraft and climbing to FL200, captain switched to company radio to call back to ewr company to give departure times. During this switching, we believe the ATC radio was switched back to departure control. When captain returned to ATC radio, he called them to ask for a higher altitude, as I had leveled at FL200. We then were informed we were on departure frequency so we switched back to ZNY. They said they had been trying to call us and we were cleared to FL390. The radios on this aircraft are very easy to mess up and change the frequency of radio #1 (ATC) when you meant to change them on radio #2 (company). The captain is new on this aircraft and that sometimes adds to it until you learn to be very careful with the radios on this aircraft. Supplemental information from acn 220149: cause is my unfamiliarity with these radio dials, switches -- which are very complicated. It's an oft-told joke that the radio is the most complicated unit on the medium large transport. We weren't off the frequency more than 4 mins.
Original NASA ASRS Text
Title: A LOW TIME IN MODEL MLG CAPT SWITCHED OFF ATC RADIO, INADVERTENTLY, WHILE INITIATING A CALL TO HIS COMPANY.
Narrative: I WAS FLYING ACFT AND CLBING TO FL200, CAPT SWITCHED TO COMPANY RADIO TO CALL BACK TO EWR COMPANY TO GIVE DEP TIMES. DURING THIS SWITCHING, WE BELIEVE THE ATC RADIO WAS SWITCHED BACK TO DEP CTL. WHEN CAPT RETURNED TO ATC RADIO, HE CALLED THEM TO ASK FOR A HIGHER ALT, AS I HAD LEVELED AT FL200. WE THEN WERE INFORMED WE WERE ON DEP FREQ SO WE SWITCHED BACK TO ZNY. THEY SAID THEY HAD BEEN TRYING TO CALL US AND WE WERE CLRED TO FL390. THE RADIOS ON THIS ACFT ARE VERY EASY TO MESS UP AND CHANGE THE FREQ OF RADIO #1 (ATC) WHEN YOU MEANT TO CHANGE THEM ON RADIO #2 (COMPANY). THE CAPT IS NEW ON THIS ACFT AND THAT SOMETIMES ADDS TO IT UNTIL YOU LEARN TO BE VERY CAREFUL WITH THE RADIOS ON THIS ACFT. SUPPLEMENTAL INFO FROM ACN 220149: CAUSE IS MY UNFAMILIARITY WITH THESE RADIO DIALS, SWITCHES -- WHICH ARE VERY COMPLICATED. IT'S AN OFT-TOLD JOKE THAT THE RADIO IS THE MOST COMPLICATED UNIT ON THE MLG. WE WEREN'T OFF THE FREQ MORE THAN 4 MINS.
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.