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B737 first officer experiences a stuck mic that goes undetected for a period of time. A new frequency is obtained from dispatch and radio contact is successfully established.
| Attributes | |
| ACN | 978695 |
| Time | |
| Date | 201111 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZDC.ARTCC |
| State Reference | VA |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Microphone |
| Person 1 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 234 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Approximately 50 miles southwest of orf at FL390; I noticed it had been silent for a while. After checking the radios and trying to bring up ATC with no luck; we sent an ACARS message to dispatch to see if they could find what frequency we needed to be on. We finally got in contact with the controlling agency; who informed us we had a stuck microphone. After some minor troubleshooting; we still could not figure exactly how that happened. [I suggest we] install a transmit light on the radios.
Original NASA ASRS Text
Title: B737 First Officer experiences a stuck Mic that goes undetected for a period of time. A new frequency is obtained from Dispatch and radio contact is successfully established.
Narrative: Approximately 50 miles southwest of ORF at FL390; I noticed it had been silent for a while. After checking the radios and trying to bring up ATC with no luck; we sent an ACARS message to Dispatch to see if they could find what frequency we needed to be on. We finally got in contact with the controlling agency; who informed us we had a stuck MIC. After some minor troubleshooting; we still could not figure exactly how that happened. [I suggest we] install a transmit light on the radios.
Data retrieved from NASA's ASRS site as of April 2012 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.