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Near midair collision between 2 cargo aircraft when ATC assigns the wrong flight an altitude meant for the climbing B727, flight X, 20 mi northwest of lit, ar.
| Attributes | |
| ACN | 545913 |
| Time | |
| Date | 200204 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : lit.airport |
| State Reference | AR |
| Altitude | msl bound lower : 28400 msl bound upper : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zme.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zme.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 170 flight time total : 14000 |
| ASRS Report | 545913 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne critical non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | none taken : insufficient time |
| Consequence | faa : investigated Other |
| Miss Distance | horizontal : 0 vertical : 600 |
| Supplementary | |
| Problem Areas | ATC Human Performance Aircraft Airspace Structure Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
ZME cleared our aircraft to FL310 initially. About 5 mins later, ZME called traffic at FL290. I responded 'climbing to FL310.' I saw the traffic pass overhead. We were already at FL284. We were air carrier X abcd, and air carrier X aecf had received the initial clearance to stop at FL280. I believe there was a mix-up in call signs. Moments after this problem, a different controller came on the frequency. We were blessed to have not had a midair with aircraft Y at FL290.
Original NASA ASRS Text
Title: NMAC BTWN 2 CARGO ACFT WHEN ATC ASSIGNS THE WRONG FLT AN ALT MEANT FOR THE CLBING B727, FLT X, 20 MI NW OF LIT, AR.
Narrative: ZME CLRED OUR ACFT TO FL310 INITIALLY. ABOUT 5 MINS LATER, ZME CALLED TFC AT FL290. I RESPONDED 'CLBING TO FL310.' I SAW THE TFC PASS OVERHEAD. WE WERE ALREADY AT FL284. WE WERE ACR X ABCD, AND ACR X AECF HAD RECEIVED THE INITIAL CLRNC TO STOP AT FL280. I BELIEVE THERE WAS A MIX-UP IN CALL SIGNS. MOMENTS AFTER THIS PROB, A DIFFERENT CTLR CAME ON THE FREQ. WE WERE BLESSED TO HAVE NOT HAD A MIDAIR WITH ACFT Y AT FL290.
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.