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SK76 air carrier flight crew inadvertently put in the wrong transponder code during a DVFR flight plan resulting in a military fighter intercept for positive identification. Crew were notified of the wrong code via their company dispatcher.
| Attributes | |
| ACN | 525963 |
| Time | |
| Date | 200109 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 6500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air taxi |
| Make Model Name | S-76/S-76 Mark II |
| Operating Under FAR Part | Part 135 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Hornet (F-18) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 120 flight time total : 12700 flight time type : 3800 |
| ASRS Report | 525963 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 245 flight time total : 11715 flight time type : 22 |
| ASRS Report | 525894 |
| Events | |
| Anomaly | non adherence : clearance non adherence other |
| Independent Detector | other other : 5 |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | faa : investigated Other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Departed XXX for YYY on flight DVFR squawk code abcd stopped for fuel at YYY for fuel. On departure YYY went up company code (abcd). Did not notice that I put in abce instead of abcd. About 90 mi from ZZZ heard blanket call on company radio to check codes. Noticed the mistake and put in abcd. Few minutes later company called and asked my location. Said they had someone on line saying I was squawking wrong code. Asked her to ask if I put in code abcd for my original DVFR if it would be ok. They said yes. About 5 mins later two F18's pulled up beside me. Tried 121.5 no response. Called ZZZ gave my location and situation. ZZZ radio tried to reach them on 121.5, no response. Told ZZZ to call company dispatch. About 10 mins later they departed.
Original NASA ASRS Text
Title: SK76 ACR FLC INADVERTENTLY PUT IN THE WRONG TRANSPONDER CODE DURING A DVFR FLT PLAN RESULTING IN A MIL FIGHTER INTERCEPT FOR POSITIVE IDENTIFICATION. CREW WERE NOTIFIED OF THE WRONG CODE VIA THEIR COMPANY DISPATCHER.
Narrative: DEPARTED XXX FOR YYY ON FLT DVFR SQUAWK CODE ABCD STOPPED FOR FUEL AT YYY FOR FUEL. ON DEP YYY WENT UP COMPANY CODE (ABCD). DID NOT NOTICE THAT I PUT IN ABCE INSTEAD OF ABCD. ABOUT 90 MI FROM ZZZ HEARD BLANKET CALL ON COMPANY RADIO TO CHK CODES. NOTICED THE MISTAKE AND PUT IN ABCD. FEW MINUTES LATER COMPANY CALLED AND ASKED MY LOCATION. SAID THEY HAD SOMEONE ON LINE SAYING I WAS SQUAWKING WRONG CODE. ASKED HER TO ASK IF I PUT IN CODE ABCD FOR MY ORIGINAL DVFR IF IT WOULD BE OK. THEY SAID YES. ABOUT 5 MINS LATER TWO F18'S PULLED UP BESIDE ME. TRIED 121.5 NO RESPONSE. CALLED ZZZ GAVE MY LOCATION AND SIT. ZZZ RADIO TRIED TO REACH THEM ON 121.5, NO RESPONSE. TOLD ZZZ TO CALL COMPANY DISPATCH. ABOUT 10 MINS LATER THEY DEPARTED.
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.