 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Ground controller crossed cpr X in front of air carrier Y takeoff. Less than standard separation. System error.
| Attributes | |
| ACN | 177257 |
| Time | |
| Date | 199105 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : las |
| State Reference | NV |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ont |
| Operator | general aviation : corporate |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | ground : holding ground other : taxi |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : ground |
| Qualification | controller : non radar |
| ASRS Report | 177257 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : ground |
| Qualification | controller : developmental |
| Events | |
| Anomaly | conflict : ground less severe incursion : runway non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Intra Facility Coordination Failure |
Narrative:
I was training a developmental on ground 1 combined with ground 2. Due to major construction at the airport, taxiing procedures change constantly. Today was the second day 2 local positions have been open. It was the first day I had worked ground control with 2 local positions. There were 2 txwys closed and a portion of 1 runway, restricting its use to arriving aircraft only. Cpr X jet exited runway 25R at taxiway M and the developmental told him to hold short of runway 19L on taxiway a. The developmental coordinated with local 2 to cross runway 19L at taxiway C and taxiway a after a departing medium large transport. An arriving aircraft exited runway 19L at taxiway C and requested to taxi to hughes. The developmental confused the arriving aircraft's call sign with that of the cpr X waiting to cross 19L at taxiway a and told the wrong aircraft to taxi to ramp. Cpr Y crossed runway 19L while air carrier Y was departing runway 19L. The local 2 controller discovered the error. No evasive action was required. I believe the situation occurred because it was my first time working with 2 local controllers which possibly made me pay more attention to the developmental's control instructions instead of call signs. My suggestion to prevent a recurrence would be to: 1) split the tower portion from the radar portion which is already being discussed. Controllers could maintain a higher level of proficiency working just one or the other. 2) during this particular phase of construction limit training to either ground 1 or ground 2, not combined positions.
Original NASA ASRS Text
Title: GND CTLR CROSSED CPR X IN FRONT OF ACR Y TKOF. LESS THAN STANDARD SEPARATION. SYSTEM ERROR.
Narrative: I WAS TRNING A DEVELOPMENTAL ON GND 1 COMBINED WITH GND 2. DUE TO MAJOR CONSTRUCTION AT THE ARPT, TAXIING PROCS CHANGE CONSTANTLY. TODAY WAS THE SECOND DAY 2 LCL POSITIONS HAVE BEEN OPEN. IT WAS THE FIRST DAY I HAD WORKED GND CTL WITH 2 LCL POSITIONS. THERE WERE 2 TXWYS CLOSED AND A PORTION OF 1 RWY, RESTRICTING ITS USE TO ARRIVING ACFT ONLY. CPR X JET EXITED RWY 25R AT TXWY M AND THE DEVELOPMENTAL TOLD HIM TO HOLD SHORT OF RWY 19L ON TXWY A. THE DEVELOPMENTAL COORDINATED WITH LCL 2 TO CROSS RWY 19L AT TXWY C AND TXWY A AFTER A DEPARTING MLG. AN ARRIVING ACFT EXITED RWY 19L AT TXWY C AND REQUESTED TO TAXI TO HUGHES. THE DEVELOPMENTAL CONFUSED THE ARRIVING ACFT'S CALL SIGN WITH THAT OF THE CPR X WAITING TO CROSS 19L AT TXWY A AND TOLD THE WRONG ACFT TO TAXI TO RAMP. CPR Y CROSSED RWY 19L WHILE ACR Y WAS DEPARTING RWY 19L. THE LCL 2 CTLR DISCOVERED THE ERROR. NO EVASIVE ACTION WAS REQUIRED. I BELIEVE THE SITUATION OCCURRED BECAUSE IT WAS MY FIRST TIME WORKING WITH 2 LCL CTLRS WHICH POSSIBLY MADE ME PAY MORE ATTN TO THE DEVELOPMENTAL'S CTL INSTRUCTIONS INSTEAD OF CALL SIGNS. MY SUGGESTION TO PREVENT A RECURRENCE WOULD BE TO: 1) SPLIT THE TWR PORTION FROM THE RADAR PORTION WHICH IS ALREADY BEING DISCUSSED. CTLRS COULD MAINTAIN A HIGHER LEVEL OF PROFICIENCY WORKING JUST ONE OR THE OTHER. 2) DURING THIS PARTICULAR PHASE OF CONSTRUCTION LIMIT TRNING TO EITHER GND 1 OR GND 2, NOT COMBINED POSITIONS.
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.