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ZAB controller experienced operational error at approximately FL340 when climbing an air carrier through an occupied altitude.
| Attributes | |
| ACN | 712917 |
| Time | |
| Date | 200610 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : abq.airport |
| State Reference | NM |
| Altitude | msl bound lower : 34000 msl bound upper : 35000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zab.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| 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 : 14 |
| ASRS Report | 712917 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance |
| Consequence | faa : investigated |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Issued climb to air carrier X abcc thinking I was issuing the climb to air carrier Y aebc. Air carrier Y aebc had no traffic. Air carrier X abcc was vertically separated from 2 other aircraft at FL340 and FL350 until the climb was begun lateral separation was then lost. Hearing 'air carrier X abcc' and then saying 'air carrier X abcc' while looking at; traffic searching; and amending the data block of air carrier Y aebc. This is a mistake made due to assumptions/subsequent actions that continued with those mistaken assumption/failure to associate spoken and written numbers.
Original NASA ASRS Text
Title: ZAB CTLR EXPERIENCED OPERROR AT APPROX FL340 WHEN CLBING AN ACR THROUGH AN OCCUPIED ALT.
Narrative: ISSUED CLB TO ACR X ABCC THINKING I WAS ISSUING THE CLB TO ACR Y AEBC. ACR Y AEBC HAD NO TFC. ACR X ABCC WAS VERTICALLY SEPARATED FROM 2 OTHER ACFT AT FL340 AND FL350 UNTIL THE CLB WAS BEGUN LATERAL SEPARATION WAS THEN LOST. HEARING 'ACR X ABCC' AND THEN SAYING 'ACR X ABCC' WHILE LOOKING AT; TFC SEARCHING; AND AMENDING THE DATA BLOCK OF ACR Y AEBC. THIS IS A MISTAKE MADE DUE TO ASSUMPTIONS/SUBSEQUENT ACTIONS THAT CONTINUED WITH THOSE MISTAKEN ASSUMPTION/FAILURE TO ASSOCIATE SPOKEN AND WRITTEN NUMBERS.
Data retrieved from NASA's ASRS site as of January 2009 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.