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An MD80 flight crew creates a go around for aircraft Y when they were unable to interpretation the tower controller's clearance due to a radio communication problem while holding in position at pdx, or.
| Attributes | |
| ACN | 513159 |
| Time | |
| Date | 200106 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pdx.airport |
| State Reference | OR |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : pdx.tower tracon : o90.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 | ground : position and hold |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : pdx.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Flight Phase | landing : go around |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 160 flight time total : 6500 flight time type : 3300 |
| ASRS Report | 513159 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : less severe conflict : ground less severe incursion : runway non adherence : clearance non adherence : required legal separation |
| Independent Detector | other controllera other flight crewa other flight crewb |
| Resolutory Action | aircraft : equipment problem dissipated controller : issued new clearance flight crew : executed go around other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft Airport ATC Facility |
| Primary Problem | ATC Facility |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Told to take the runway (into position and hold) and after we were on the runway we could not hear tower talk to us. We could hear other aircraft talking to tower but tower sounded broken and unintelligible to us. We saw on the runway asking tower to say again a number of times but could not hear their entire response. We did not hear if we were cleared for takeoff. A plane on final had to go around. We dialed up ground frequency and were directed to taxi down the runway and exit. We tested our radios and after we got off the runway were then able to hear tower fine. We were able to then take the runway and take off without incident. We have no idea why we could not hear tower clearly.
Original NASA ASRS Text
Title: AN MD80 FLC CREATES A GAR FOR ACFT Y WHEN THEY WERE UNABLE TO INTERP THE TWR CTLR'S CLRNC DUE TO A RADIO COM PROB WHILE HOLDING IN POS AT PDX, OR.
Narrative: TOLD TO TAKE THE RWY (INTO POS AND HOLD) AND AFTER WE WERE ON THE RWY WE COULD NOT HEAR TWR TALK TO US. WE COULD HEAR OTHER ACFT TALKING TO TWR BUT TWR SOUNDED BROKEN AND UNINTELLIGIBLE TO US. WE SAW ON THE RWY ASKING TWR TO SAY AGAIN A NUMBER OF TIMES BUT COULD NOT HEAR THEIR ENTIRE RESPONSE. WE DID NOT HEAR IF WE WERE CLRED FOR TKOF. A PLANE ON FINAL HAD TO GO AROUND. WE DIALED UP GND FREQ AND WERE DIRECTED TO TAXI DOWN THE RWY AND EXIT. WE TESTED OUR RADIOS AND AFTER WE GOT OFF THE RWY WERE THEN ABLE TO HEAR TWR FINE. WE WERE ABLE TO THEN TAKE THE RWY AND TAKE OFF WITHOUT INCIDENT. WE HAVE NO IDEA WHY WE COULD NOT HEAR TWR CLRLY.
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.