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Lost communication procedure followed by the crew of an MD80 when they are unable to contact departure controller out of phl.
| Attributes | |
| ACN | 638542 |
| Time | |
| Date | 200411 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : mxe.vor |
| State Reference | PA |
| Altitude | msl bound lower : 2000 msl bound upper : 23000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc artcc : zme.artcc tracon : phl.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : initial climbout : intermediate altitude cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 638542 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other controllera other flight crewa other flight crewb |
| Resolutory Action | aircraft : equipment problem dissipated flight crew : returned to original clearance other |
| Consequence | other |
| Supplementary | |
| Problem Areas | ATC Facility Aircraft |
| Primary Problem | Aircraft |
Narrative:
Dual radio failure in-flight. Leaving gate at phl, all communications normal -- ramp, ground tower. After takeoff, handed off to departure control. We were informed that our xmissions were followed by 30 seconds of static. We switched to the #2 radio and was told that it was also with static. I was making the communications and I tried using different mikes with no improvement. Eventually we could no longer hear washington departure and leveled off at the last assigned altitude of FL230. We continued flight using lost communication procedures. We used the ACARS to inform dispatch and they gave us progressive ATC frequencys to monitor and requested FL310 from ATC for us. As we progressed and after about 1.5 hours, we were able to hear the ATC instructions and responded with identify on the transponder. We later tried to transmit and ATC told us that they were reading us 'loud and clear.' remainder of the flight was completed without further problems.
Original NASA ASRS Text
Title: LOST COM PROC FOLLOWED BY THE CREW OF AN MD80 WHEN THEY ARE UNABLE TO CONTACT DEP CTLR OUT OF PHL.
Narrative: DUAL RADIO FAILURE INFLT. LEAVING GATE AT PHL, ALL COMS NORMAL -- RAMP, GND TWR. AFTER TKOF, HANDED OFF TO DEP CTL. WE WERE INFORMED THAT OUR XMISSIONS WERE FOLLOWED BY 30 SECONDS OF STATIC. WE SWITCHED TO THE #2 RADIO AND WAS TOLD THAT IT WAS ALSO WITH STATIC. I WAS MAKING THE COMS AND I TRIED USING DIFFERENT MIKES WITH NO IMPROVEMENT. EVENTUALLY WE COULD NO LONGER HEAR WASHINGTON DEP AND LEVELED OFF AT THE LAST ASSIGNED ALT OF FL230. WE CONTINUED FLT USING LOST COM PROCS. WE USED THE ACARS TO INFORM DISPATCH AND THEY GAVE US PROGRESSIVE ATC FREQS TO MONITOR AND REQUESTED FL310 FROM ATC FOR US. AS WE PROGRESSED AND AFTER ABOUT 1.5 HRS, WE WERE ABLE TO HEAR THE ATC INSTRUCTIONS AND RESPONDED WITH IDENT ON THE XPONDER. WE LATER TRIED TO XMIT AND ATC TOLD US THAT THEY WERE READING US 'LOUD AND CLR.' REMAINDER OF THE FLT WAS COMPLETED WITHOUT FURTHER PROBS.
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.