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An air carrier B757 flight crew lost the radios on final approach and went around. Later they were able to receive only and made a successful approach and landing while squawking 7600.
| Attributes | |
| ACN | 367891 |
| Time | |
| Date | 199705 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : yyz |
| State Reference | ON |
| Altitude | agl bound lower : 1500 agl bound upper : 1500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : yyz tower : clt |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach landing : go around landing other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 200 flight time total : 19000 flight time type : 2800 |
| ASRS Report | 367891 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 368077 |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
On approximately 4 mi final to runway 24L we experienced radio failure. We could not transmit or receive on either VHF radio. Indications were that we had a stuck microphone. Landing clearance had not been received prior to radio failure, so we executed a go around and troubleshot the radios for approximately 20 mins while remaining in VMC north of the airport. We squawked 7600 (lost communication), returned to the field and landed on runway 24L. Although we could not transmit, we heard tower give us landing clearance while on visual final.
Original NASA ASRS Text
Title: AN ACR B757 FLC LOST THE RADIOS ON FINAL APCH AND WENT AROUND. LATER THEY WERE ABLE TO RECEIVE ONLY AND MADE A SUCCESSFUL APCH AND LNDG WHILE SQUAWKING 7600.
Narrative: ON APPROX 4 MI FINAL TO RWY 24L WE EXPERIENCED RADIO FAILURE. WE COULD NOT XMIT OR RECEIVE ON EITHER VHF RADIO. INDICATIONS WERE THAT WE HAD A STUCK MIKE. LNDG CLRNC HAD NOT BEEN RECEIVED PRIOR TO RADIO FAILURE, SO WE EXECUTED A GAR AND TROUBLESHOT THE RADIOS FOR APPROX 20 MINS WHILE REMAINING IN VMC N OF THE ARPT. WE SQUAWKED 7600 (LOST COM), RETURNED TO THE FIELD AND LANDED ON RWY 24L. ALTHOUGH WE COULD NOT XMIT, WE HEARD TWR GIVE US LNDG CLRNC WHILE ON VISUAL FINAL.
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.