|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||atc facility : ord|
|Altitude||msl bound lower : 6000|
msl bound upper : 6000
|Controlling Facilities||tracon : ord|
|Operator||common carrier : air carrier|
|Make Model Name||Any Unknown or Unlisted Aircraft Manufacturer|
|Flight Phase||cruise other|
descent : approach
|Affiliation||government : faa|
|Function||controller : approach|
|Qualification||controller : radar|
|Experience||controller radar : 11|
|Function||flight crew : single pilot|
|Qualification||pilot : private|
|Anomaly||altitude deviation : excursion from assigned altitude|
conflict : airborne less severe
non adherence : clearance
|Independent Detector||aircraft equipment other aircraft equipment : unspecified|
|Resolutory Action||flight crew : returned to intended course or assigned course|
flight crew : took evasive action
|Miss Distance||vertical : 500|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
Air carrier X checked in at 6000 ft. Traffic was observed and issued leaving 5300 ft in a climb opposite direction squawking VFR, at air carrier X's 12 O'clock, 6 mi. I observed the VFR was on a merging heading climbing out of 5500 ft. I issued a turn to air carrier X to miss the VFR target. Air carrier X advised he was receiving a TCASII RA and was responding to it. The closest IFR traffic was at 11000 ft immediately above air carrier X. Air carrier X resumed his original heading and altitude after he went around the traffic. Air carrier X was issued a heading to remain 1 mi clear of the traffic. The climb air carrier X did was unnecessary and excessive.
Original NASA ASRS Text
Title: ACR X TCASII RA WITH VFR ACFT Y CLBING THROUGH OCCUPIED ALT.
Narrative: ACR X CHKED IN AT 6000 FT. TFC WAS OBSERVED AND ISSUED LEAVING 5300 FT IN A CLB OPPOSITE DIRECTION SQUAWKING VFR, AT ACR X'S 12 O'CLOCK, 6 MI. I OBSERVED THE VFR WAS ON A MERGING HDG CLBING OUT OF 5500 FT. I ISSUED A TURN TO ACR X TO MISS THE VFR TARGET. ACR X ADVISED HE WAS RECEIVING A TCASII RA AND WAS RESPONDING TO IT. THE CLOSEST IFR TFC WAS AT 11000 FT IMMEDIATELY ABOVE ACR X. ACR X RESUMED HIS ORIGINAL HDG AND ALT AFTER HE WENT AROUND THE TFC. ACR X WAS ISSUED A HDG TO REMAIN 1 MI CLR OF THE TFC. THE CLB ACR X DID WAS UNNECESSARY AND EXCESSIVE.
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.