 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Tower controller registers complaint about the communication problem with the B737-700 which sometimes causes the xmissions from the flight crew to not be heard in the tower when the aircraft taxies into position for takeoff.
| Attributes | |
| ACN | 472400 |
| Time | |
| Date | 200005 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : mci.airport |
| State Reference | MO |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-700 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller radar : 6 |
| ASRS Report | 472400 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : air / ground x-mitter other controllera |
| Resolutory Action | none taken : unable none taken : anomaly accepted |
| Consequence | faa : investigated other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
On numerous occasions, the B737-700 series aircraft loses communications when taxiing into position and hold on runway 19R. We have talked with the company that uses -700 series at mci and have found out that when they are on communication #1 we lose communication. We switched to standby transmitters and we can then talk to them. The relationship of the antennae on the -700 series and the main transmitter is what the problem is. This has been going on since air carrier started flying the -700 series about 5 months ago.
Original NASA ASRS Text
Title: TWR CTLR REGISTERS COMPLAINT ABOUT THE COM PROB WITH THE B737-700 WHICH SOMETIMES CAUSES THE XMISSIONS FROM THE FLC TO NOT BE HEARD IN THE TWR WHEN THE ACFT TAXIES INTO POS FOR TKOF.
Narrative: ON NUMEROUS OCCASIONS, THE B737-700 SERIES ACFT LOSES COMS WHEN TAXIING INTO POS AND HOLD ON RWY 19R. WE HAVE TALKED WITH THE COMPANY THAT USES -700 SERIES AT MCI AND HAVE FOUND OUT THAT WHEN THEY ARE ON COM #1 WE LOSE COM. WE SWITCHED TO STANDBY XMITTERS AND WE CAN THEN TALK TO THEM. THE RELATIONSHIP OF THE ANTENNAE ON THE -700 SERIES AND THE MAIN XMITTER IS WHAT THE PROB IS. THIS HAS BEEN GOING ON SINCE ACR STARTED FLYING THE -700 SERIES ABOUT 5 MONTHS AGO.
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.