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On climb flight crew communication system reception contaminated with static, feed through, and backgnd noise.
| Attributes | |
| ACN | 306835 |
| Time | |
| Date | 199506 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : syr airport : bgm |
| State Reference | NY |
| Altitude | msl bound lower : 8000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : syr tracon : elm |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 180 flight time total : 7500 flight time type : 200 |
| ASRS Report | 306815 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
We were on departure climb out on flight X from syr to bwi. When we incurred numerous communication radios a nomalies and subsequent failures. Our initial climb was to 4000 ft MSL with a switch to syr departure control. The first officer and PF, reporter in this case, was getting heavy ATIS bleed over and marker beacon bleed over on all radios with mixer switches on or off. The problem was called out to us by syr departure as symptomatic of a stuck microphone switch on our part. The communications eventually deteriorated to the point that cockpit crew communications became near impossible. We established communications with elm approach and requested a divert to bgm airport -- our nearest suitable at the time. An uneventful approach and landing ensued.
Original NASA ASRS Text
Title: ON CLB FLC COM SYS RECEPTION CONTAMINATED WITH STATIC, FEED THROUGH, AND BACKGND NOISE.
Narrative: WE WERE ON DEP CLBOUT ON FLT X FROM SYR TO BWI. WHEN WE INCURRED NUMEROUS COM RADIOS A NOMALIES AND SUBSEQUENT FAILURES. OUR INITIAL CLB WAS TO 4000 FT MSL WITH A SWITCH TO SYR DEP CTL. THE FO AND PF, RPTR IN THIS CASE, WAS GETTING HVY ATIS BLEED OVER AND MARKER BEACON BLEED OVER ON ALL RADIOS WITH MIXER SWITCHES ON OR OFF. THE PROB WAS CALLED OUT TO US BY SYR DEP AS SYMPTOMATIC OF A STUCK MIKE SWITCH ON OUR PART. THE COMS EVENTUALLY DETERIORATED TO THE POINT THAT COCKPIT CREW COMS BECAME NEAR IMPOSSIBLE. WE ESTABLISHED COMS WITH ELM APCH AND REQUESTED A DIVERT TO BGM ARPT -- OUR NEAREST SUITABLE AT THE TIME. AN UNEVENTFUL APCH AND LNDG ENSUED.
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.