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Air carrier flight crew loses communication with center. Found stuck microphone to be problem after trying several calls on two different radios. Microphone became unstuck resuming communication with center.
| Attributes | |
| ACN | 125699 |
| Time | |
| Date | 198910 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : gdm airport : bos |
| State Reference | MA |
| Altitude | msl bound lower : 19000 msl bound upper : 19000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zbw tower : mia |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other cruise other descent other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 10000 flight time type : 5000 |
| ASRS Report | 125699 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
At 12 DME east of gdm at FL190 we were assigned a left turn to a heading of 320 degree. After not hearing any radio xmissions for a couple of mins, we tried to call the controller we had been in contact with (frequency 123.75). When unable to reach him, we went back to previous frequency 135.32. When unable to reach him we attempted to call our company on the other radio. At that time ATC was able to contact us on 135.32 and informed us that we had had a stuck microphone. ATC said they heard us calling them on both 123.75 and 135.32 but we could not receive them.
Original NASA ASRS Text
Title: ACR FLT CREW LOSES COM WITH CENTER. FOUND STUCK MICROPHONE TO BE PROBLEM AFTER TRYING SEVERAL CALLS ON TWO DIFFERENT RADIOS. MICROPHONE BECAME UNSTUCK RESUMING COM WITH CENTER.
Narrative: AT 12 DME E OF GDM AT FL190 WE WERE ASSIGNED A LEFT TURN TO A HDG OF 320 DEG. AFTER NOT HEARING ANY RADIO XMISSIONS FOR A COUPLE OF MINS, WE TRIED TO CALL THE CTLR WE HAD BEEN IN CONTACT WITH (FREQ 123.75). WHEN UNABLE TO REACH HIM, WE WENT BACK TO PREVIOUS FREQ 135.32. WHEN UNABLE TO REACH HIM WE ATTEMPTED TO CALL OUR COMPANY ON THE OTHER RADIO. AT THAT TIME ATC WAS ABLE TO CONTACT US ON 135.32 AND INFORMED US THAT WE HAD HAD A STUCK MICROPHONE. ATC SAID THEY HEARD US CALLING THEM ON BOTH 123.75 AND 135.32 BUT WE COULD NOT RECEIVE THEM.
Data retrieved from NASA's ASRS site as of August 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.