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Using the wrong pre departure clearance and its associated transponder assignment caused confusion after takeoff.
| Attributes | |
| ACN | 510420 |
| Time | |
| Date | 200105 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : iah.vortac |
| State Reference | TX |
| Altitude | msl single value : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 6207 flight time type : 700 |
| ASRS Report | 510420 |
| Events | |
| Anomaly | non adherence : clearance non adherence : company policies |
| Resolutory Action | other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Company Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
I brought pre departure clearance for flight X to aircraft and entered proper route in FMS. A gate agent had brought a pre departure clearance for flight Y and the first officer entered that squawk code into transponder. I did not verify the squawk code as I didn't know the gate agent had brought another pre departure clearance (wrong one). We were cleared for takeoff with our correct flight number, but when tower started calling flight Y for frequency change, we didn't answer. After several calls, I knew he was looking for us. After short investigation, I realized we had 2 pre departure clearance's on board. I explained briefly to approach control what had happened. We then changed our transponder to correct code and completed flight uneventfully.
Original NASA ASRS Text
Title: USING THE WRONG PDC AND ITS ASSOCIATED XPONDER ASSIGNMENT CAUSED CONFUSION AFTER TKOF.
Narrative: I BROUGHT PDC FOR FLT X TO ACFT AND ENTERED PROPER RTE IN FMS. A GATE AGENT HAD BROUGHT A PDC FOR FLT Y AND THE FO ENTERED THAT SQUAWK CODE INTO XPONDER. I DID NOT VERIFY THE SQUAWK CODE AS I DIDN'T KNOW THE GATE AGENT HAD BROUGHT ANOTHER PDC (WRONG ONE). WE WERE CLRED FOR TKOF WITH OUR CORRECT FLT NUMBER, BUT WHEN TWR STARTED CALLING FLT Y FOR FREQ CHANGE, WE DIDN'T ANSWER. AFTER SEVERAL CALLS, I KNEW HE WAS LOOKING FOR US. AFTER SHORT INVESTIGATION, I REALIZED WE HAD 2 PDC'S ON BOARD. I EXPLAINED BRIEFLY TO APCH CTL WHAT HAD HAPPENED. WE THEN CHANGED OUR XPONDER TO CORRECT CODE AND COMPLETED FLT UNEVENTFULLY.
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.