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ZID controller experienced loss of separation at FL220 when flight crew confused heading assignment with altitude clearance.
| Attributes | |
| ACN | 604161 |
| Time | |
| Date | 200401 |
| Day | Tue |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | navaid : shb.vor |
| State Reference | IN |
| Altitude | msl single value : 22000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Gates Learjet Corp Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : enroute altitude change |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 33 |
| ASRS Report | 604161 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne critical non adherence : clearance other spatial deviation |
| Independent Detector | atc equipment : conflict alert aircraft equipment : tcas |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Miss Distance | horizontal : 1500 vertical : 0 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Sebound lear level at FL220 given a heading to fly 180 degrees. Took heading as altitude and descended, causing B757 to get RA and descend.
Original NASA ASRS Text
Title: ZID CTLR EXPERIENCED LOSS OF SEPARATION AT FL220 WHEN FLT CREW CONFUSED HDG ASSIGNMENT WITH ALT CLRNC.
Narrative: SEBOUND LEAR LEVEL AT FL220 GIVEN A HDG TO FLY 180 DEGS. TOOK HEADING AS ALT AND DSNDED, CAUSING B757 TO GET RA AND DSND.
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.