 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
GLF5 crew had less than legal separation in ZOB class a airspace.
| Attributes | |
| ACN | 561954 |
| Time | |
| Date | 200210 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : zob.artcc |
| State Reference | OH |
| Altitude | msl single value : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Gulfstream IV |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Route In Use | enroute : direct enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Make Model Name | Commercial Fixed Wing |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 85 flight time total : 5300 flight time type : 125 |
| ASRS Report | 561954 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 60 flight time total : 8700 |
| ASRS Report | 561953 |
| Events | |
| Anomaly | non adherence : clearance non adherence : published procedure non adherence : required legal separation other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment : tcas other controllera other flight crewa other flight crewb |
| Resolutory Action | controller : issued alert controller : separated traffic controller : issued new clearance flight crew : returned to intended or assigned course other |
| Miss Distance | horizontal : 18000 vertical : 600 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Situation began at FL280 in cruise flight. Communication was with ZOB on 118.62. Aircraft we were flying was a giv. We were on an assigned heading of 280 degrees. Next instruction was 'proceed direct ashen, J60-goshen.' PNF read back 'direct asher, J60-goshen.' asher was loaded into FMS and aircraft subsequently made approximately 45 degree bank to left. Both pilots agreed turn was excessive so a second call to ATC was attempted to verify proper intersection but frequency was completely saturated. Before we could get a call in, ATC advised us of the deviation and instructed an immediate turn back to a 280 degree heading. At the same time, we received an RA, followed quickly by a 'clear of conflict.' one thing that may have helped this situation was if the controller had stated the instruction as 'fly heading 270 degrees, when able direct ashen J60 goshen.' this would have gotten us going in the right direction while we find the intersection on the en route chart and load it in the FMS. Supplemental information from acn 561953: flight crew programmed asher in FMS and found discrepancy in route of flight. ATC was very busy at the time and the flight crew was unable to verify spelling of intersection.
Original NASA ASRS Text
Title: GLF5 CREW HAD LESS THAN LEGAL SEPARATION IN ZOB CLASS A AIRSPACE.
Narrative: SIT BEGAN AT FL280 IN CRUISE FLT. COM WAS WITH ZOB ON 118.62. ACFT WE WERE FLYING WAS A GIV. WE WERE ON AN ASSIGNED HDG OF 280 DEGS. NEXT INSTRUCTION WAS 'PROCEED DIRECT ASHEN, J60-GOSHEN.' PNF READ BACK 'DIRECT ASHER, J60-GOSHEN.' ASHER WAS LOADED INTO FMS AND ACFT SUBSEQUENTLY MADE APPROX 45 DEG BANK TO L. BOTH PLTS AGREED TURN WAS EXCESSIVE SO A SECOND CALL TO ATC WAS ATTEMPTED TO VERIFY PROPER INTXN BUT FREQ WAS COMPLETELY SATURATED. BEFORE WE COULD GET A CALL IN, ATC ADVISED US OF THE DEV AND INSTRUCTED AN IMMEDIATE TURN BACK TO A 280 DEG HDG. AT THE SAME TIME, WE RECEIVED AN RA, FOLLOWED QUICKLY BY A 'CLR OF CONFLICT.' ONE THING THAT MAY HAVE HELPED THIS SIT WAS IF THE CTLR HAD STATED THE INSTRUCTION AS 'FLY HDG 270 DEGS, WHEN ABLE DIRECT ASHEN J60 GOSHEN.' THIS WOULD HAVE GOTTEN US GOING IN THE RIGHT DIRECTION WHILE WE FIND THE INTXN ON THE ENRTE CHART AND LOAD IT IN THE FMS. SUPPLEMENTAL INFO FROM ACN 561953: FLC PROGRAMMED ASHER IN FMS AND FOUND DISCREPANCY IN RTE OF FLT. ATC WAS VERY BUSY AT THE TIME AND THE FLC WAS UNABLE TO VERIFY SPELLING OF INTXN.
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.