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Altitude deviation. Excursion from assigned. Track deviation. Response to wrong call sing. Readback hearback problem.
| Attributes | |
| ACN | 140170 |
| Time | |
| Date | 199003 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 3000 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | descent other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 120 flight time total : 5000 flight time type : 120 |
| ASRS Report | 140160 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 4300 flight time type : 200 |
| ASRS Report | 139978 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance none taken : detected after the fact other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Ambiguous |
| Air Traffic Incident | other |
Narrative:
Shortly after switching frequency to ord approach control at 8000' MSL, the flight acknowledged and complied with a clearance to turn right to 090 degrees and descend to 3000'. The clearance was heard by all 3 crew members and all agree it was issued to air carrier ab. Although still approximately 35 mi from landing, the clearance contained the request to expedite, so it was not immediately questions. Shortly thereafter, the approach controller stated that he believed the clearance was issued to another flight and we received instructions to return to the arrival flow of traffic. I spoke with approach control after landing and was advised that no traffic conflict had resulted and safety parameters were not exceeded. Supplemental information from acn 139978: ord approach replied, 'air carrier xa, say heading.' we replied, '090 degrees, assigned.' he said that clearance was for air carrier sb. I said, 'well, we read it back.' he then gave us a turn to north and a climb to 8000' MSL, and informed us that he'd have to pull the tapes for investigation.
Original NASA ASRS Text
Title: ALT DEVIATION. EXCURSION FROM ASSIGNED. TRACK DEVIATION. RESPONSE TO WRONG CALL SING. READBACK HEARBACK PROBLEM.
Narrative: SHORTLY AFTER SWITCHING FREQ TO ORD APCH CTL AT 8000' MSL, THE FLT ACKNOWLEDGED AND COMPLIED WITH A CLRNC TO TURN RIGHT TO 090 DEGS AND DSND TO 3000'. THE CLRNC WAS HEARD BY ALL 3 CREW MEMBERS AND ALL AGREE IT WAS ISSUED TO ACR AB. ALTHOUGH STILL APPROX 35 MI FROM LNDG, THE CLRNC CONTAINED THE REQUEST TO EXPEDITE, SO IT WAS NOT IMMEDIATELY QUESTIONS. SHORTLY THEREAFTER, THE APCH CTLR STATED THAT HE BELIEVED THE CLRNC WAS ISSUED TO ANOTHER FLT AND WE RECEIVED INSTRUCTIONS TO RETURN TO THE ARR FLOW OF TFC. I SPOKE WITH APCH CTL AFTER LNDG AND WAS ADVISED THAT NO TFC CONFLICT HAD RESULTED AND SAFETY PARAMETERS WERE NOT EXCEEDED. SUPPLEMENTAL INFO FROM ACN 139978: ORD APCH REPLIED, 'ACR XA, SAY HDG.' WE REPLIED, '090 DEGS, ASSIGNED.' HE SAID THAT CLRNC WAS FOR ACR SB. I SAID, 'WELL, WE READ IT BACK.' HE THEN GAVE US A TURN TO N AND A CLB TO 8000' MSL, AND INFORMED US THAT HE'D HAVE TO PULL THE TAPES FOR INVESTIGATION.
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.