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|
Attributes | |
ACN | 82561 |
Time | |
Date | 198802 |
Day | Thu |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | atc facility : elx |
State Reference | MI |
Altitude | msl bound lower : 27000 msl bound upper : 27000 |
Environment | |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : zau |
Operator | common carrier : air carrier |
Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
Navigation In Use | Other |
Flight Phase | climbout : intermediate altitude cruise other |
Route In Use | enroute airway : zau |
Flight Plan | IFR |
Aircraft 2 | |
Operator | common carrier : air carrier |
Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
Flight Phase | climbout : intermediate altitude |
Flight Plan | IFR |
Person 1 | |
Affiliation | government : faa |
Function | controller : radar |
Qualification | controller : radar |
Experience | controller radar : 27 |
ASRS Report | 82561 |
Person 2 | |
Function | controller : radar |
Qualification | controller : developmental |
Events | |
Anomaly | conflict : airborne less severe non adherence : required legal separation |
Independent Detector | atc equipment other atc equipment : unspecified other controllera |
Resolutory Action | controller : issued new clearance none taken : insufficient time other |
Consequence | faa : investigated |
Miss Distance | horizontal : 24000 vertical : 0 |
Supplementary | |
Primary Problem | ATC Human Performance |
Air Traffic Incident | Operational Error |
Narrative:
Medium large transport X ord to roc and large transport Y, ord to alb, climbing east from ord via keeler VOR to salem and carleton VOR. Medium large transport X was climbed to FL270 (requesting FL330). Large transport Y cleared to FL270 prior to medium large transport X being cleared to climb above FL270. Large transport Y being faster caught medium large transport X resulting in 4 mi sep instead of 5 mi or more. Training was in progress on both the radar and the manual positions. Approximately 13-15 aircraft were on the frequency and were involved in 9 separate necessary coordinates. The manual man spotted the overtake as the 5 mi limit was broken just as the C/a system activated. Medium large transport X was issued climb to FL280, expedite, climb and large transport Y was issued a turn 20 degrees to the left. The supervisor had previously asked if we needed a handoff man. At that time we did not need additional help with 4 people at the sector. Subsequent coordination arising resulting in large transport Y being issued FL270 prior to medium large transport X being issued a climb first. 7-8 am is the normal east departure rush period, but 9 simultaneous coordinates is unusual. I believe the training, waiting to see if the trnee has a plan and executes the plan, versus and fpl preplanning far enough ahead not allowing situations to develop and the demands of coordinating with 6 other sectors on 9 crossing aircraft (other than normal east departure rush period aircraft) resulted in large transport Y being cleared up out of sequence with medium large transport X. Once a situation develops it is too late to add more people and I had not anticipated the extra coordination and reroutes that arose. WX and equipment were not factors.
Original NASA ASRS Text
Title: ACR-LGT IS GIVEN PREMATURE CLIMB CLRNC AND OVERTAKES ACR-MLG RESULTING IN LESS THAN STANDARD SEPARATION.
Narrative: MLG X ORD TO ROC AND LGT Y, ORD TO ALB, CLBING E FROM ORD VIA KEELER VOR TO SALEM AND CARLETON VOR. MLG X WAS CLBED TO FL270 (REQUESTING FL330). LGT Y CLRED TO FL270 PRIOR TO MLG X BEING CLRED TO CLB ABOVE FL270. LGT Y BEING FASTER CAUGHT MLG X RESULTING IN 4 MI SEP INSTEAD OF 5 MI OR MORE. TRNING WAS IN PROGRESS ON BOTH THE RADAR AND THE MANUAL POSITIONS. APPROX 13-15 ACFT WERE ON THE FREQ AND WERE INVOLVED IN 9 SEPARATE NECESSARY COORDINATES. THE MANUAL MAN SPOTTED THE OVERTAKE AS THE 5 MI LIMIT WAS BROKEN JUST AS THE C/A SYS ACTIVATED. MLG X WAS ISSUED CLB TO FL280, EXPEDITE, CLB AND LGT Y WAS ISSUED A TURN 20 DEGS TO THE LEFT. THE SUPVR HAD PREVIOUSLY ASKED IF WE NEEDED A HDOF MAN. AT THAT TIME WE DID NOT NEED ADDITIONAL HELP WITH 4 PEOPLE AT THE SECTOR. SUBSEQUENT COORD ARISING RESULTING IN LGT Y BEING ISSUED FL270 PRIOR TO MLG X BEING ISSUED A CLB FIRST. 7-8 AM IS THE NORMAL E DEP RUSH PERIOD, BUT 9 SIMULTANEOUS COORDINATES IS UNUSUAL. I BELIEVE THE TRNING, WAITING TO SEE IF THE TRNEE HAS A PLAN AND EXECUTES THE PLAN, VERSUS AND FPL PREPLANNING FAR ENOUGH AHEAD NOT ALLOWING SITUATIONS TO DEVELOP AND THE DEMANDS OF COORDINATING WITH 6 OTHER SECTORS ON 9 XING ACFT (OTHER THAN NORMAL E DEP RUSH PERIOD ACFT) RESULTED IN LGT Y BEING CLRED UP OUT OF SEQUENCE WITH MLG X. ONCE A SITUATION DEVELOPS IT IS TOO LATE TO ADD MORE PEOPLE AND I HAD NOT ANTICIPATED THE EXTRA COORD AND REROUTES THAT AROSE. WX AND EQUIP WERE NOT FACTORS.
Data retrieved from NASA's ASRS site as of August 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.