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A B737-300's VHF radio systems were unable to transmit or recieve after takeoff. The crew squawked 7600 and returned to land NORDO.
| Attributes | |
| ACN | 845770 |
| Time | |
| Date | 200907 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Route In Use | SID RNAV x |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | VHF |
| Person 1 | |
| Function | First Officer |
| Experience | Flight Crew Last 90 Days 198 Flight Crew Type 700 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe |
Narrative:
Departing we never got a handoff to departure control so we asked for a switch with no response. We then switched frequencies to departure control again with no voice communication. After trying all radios (1 and 2 including standby boxes) we then squawked 7600. We flew the RNAV departure route including altitude restrictions up to when we decided to remain VFR and return. After using the FMC to relay thru company; we regained partial use of the #2 radio and was cleared to land. We ran the numbers and we were underweight for the landing. After landing; we were cleared to cross the active runway and lost radio communication again. We saw the light signals from the tower giving us the ok to continue to the ramp/gate where maintenence was waiting. Even though we could not hear ATC; they may have heard us. I think we should have made more calls 'in the blind' relaying our intentions.
Original NASA ASRS Text
Title: A B737-300's VHF radio systems were unable to transmit or recieve after takeoff. The crew squawked 7600 and returned to land NORDO.
Narrative: Departing we never got a handoff to Departure Control so we asked for a switch with no response. We then switched frequencies to Departure Control again with no voice communication. After trying all radios (1 and 2 including standby boxes) we then squawked 7600. We flew the RNAV departure route including altitude restrictions up to when we decided to remain VFR and return. After using the FMC to relay thru Company; we regained partial use of the #2 radio and was cleared to land. We ran the numbers and we were underweight for the landing. After landing; we were cleared to cross the active runway and lost radio communication again. We saw the light signals from the Tower giving us the OK to continue to the ramp/gate where maintenence was waiting. Even though we could not hear ATC; they may have heard us. I think we should have made more calls 'in the blind' relaying our intentions.
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.