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Air carrier medium large transport had an intermittent radio failure after taxiing into position at bos.
| Attributes | |
| ACN | 162950 |
| Time | |
| Date | 199011 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : bos |
| State Reference | MA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : takeoff ground : holding ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 138 flight time total : 15396 flight time type : 3695 |
| ASRS Report | 162950 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 135 flight time total : 9200 flight time type : 875 |
| ASRS Report | 162951 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | aircraft : equipment problem dissipated flight crew : overcame equipment problem |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
We were cleared into position and hold for takeoff. We acknowledged the clearance and taxied into the takeoff position. After holding in the takeoff position for approximately 1 min we noticed that we were hearing no further communications from the tower. We were observing lndgs on the other active runway. We attempted to contact the tower but received no answer. We then switched to the #2 head on the same radio and heard the tower attempting to contact us to give us takeoff clearance. We acknowledged and the tower said they had attempted to contact us several ties. We informed the tower that we had apparently experienced a failure of the #1 head of our #1 radio and that we were now reading them 5 X 5. We received takeoff clearance and departed. We later attempted to duplicate the radio failure but were unable to do so. It appears that the radio experienced a transient failure that was cleared by recycling the frequency selector knobs.
Original NASA ASRS Text
Title: ACR MLG HAD AN INTERMITTENT RADIO FAILURE AFTER TAXIING INTO POSITION AT BOS.
Narrative: WE WERE CLRED INTO POS AND HOLD FOR TKOF. WE ACKNOWLEDGED THE CLRNC AND TAXIED INTO THE TKOF POS. AFTER HOLDING IN THE TKOF POS FOR APPROX 1 MIN WE NOTICED THAT WE WERE HEARING NO FURTHER COMS FROM THE TWR. WE WERE OBSERVING LNDGS ON THE OTHER ACTIVE RWY. WE ATTEMPTED TO CONTACT THE TWR BUT RECEIVED NO ANSWER. WE THEN SWITCHED TO THE #2 HEAD ON THE SAME RADIO AND HEARD THE TWR ATTEMPTING TO CONTACT US TO GIVE US TKOF CLRNC. WE ACKNOWLEDGED AND THE TWR SAID THEY HAD ATTEMPTED TO CONTACT US SEVERAL TIES. WE INFORMED THE TWR THAT WE HAD APPARENTLY EXPERIENCED A FAILURE OF THE #1 HEAD OF OUR #1 RADIO AND THAT WE WERE NOW READING THEM 5 X 5. WE RECEIVED TKOF CLRNC AND DEPARTED. WE LATER ATTEMPTED TO DUPLICATE THE RADIO FAILURE BUT WERE UNABLE TO DO SO. IT APPEARS THAT THE RADIO EXPERIENCED A TRANSIENT FAILURE THAT WAS CLRED BY RECYCLING THE FREQ SELECTOR KNOBS.
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.