37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 356974 |
Time | |
Date | 199612 |
Day | Sun |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : tol |
State Reference | OH |
Altitude | msl bound lower : 7000 msl bound upper : 10000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : zob |
Operator | common carrier : air carrier |
Make Model Name | Commercial Fixed Wing |
Operating Under FAR Part | Part 121 |
Navigation In Use | Other Other |
Flight Phase | climbout : intermediate altitude cruise other |
Route In Use | enroute airway : zob |
Flight Plan | IFR |
Aircraft 2 | |
Make Model Name | Commercial Fixed Wing |
Operating Under FAR Part | other : unknown |
Flight Phase | cruise other cruise other |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : cfi pilot : commercial |
Experience | flight time last 90 days : 200 flight time total : 4200 flight time type : 900 |
ASRS Report | 356974 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Events | |
Anomaly | conflict : nmac non adherence : clearance other anomaly other |
Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
Resolutory Action | flight crew : took evasive action |
Consequence | faa : reviewed incident with flight crew |
Miss Distance | horizontal : 400 vertical : 400 |
Supplementary | |
Primary Problem | Flight Crew Human Performance |
Air Traffic Incident | Pilot Deviation |
Narrative:
While in climb to altitude the controller advised of jet traffic at about 2:30 O'clock position. We confirmed in sight and were issued to maintain visual separation while climbing to altitude of (17000 ft?). It seemed as though the other aircraft made a slight change in course such as to go from slightly converging from the right to a 90 degree intercept of our course. At any rate, it was difficult to judge the closure rate and we were upon the jet quickly. At all times the traffic was in sight. We began a right turn to maintain a greater separation at about the same time the jet decided to do so, and at this same time we were probably 700 ft horizontal and 200 ft above. At the earliest stage, the TCASII TA was disregarded because we knew the traffic was there. I was fixated on the traffic and climbing. In retrospect, I should have leveled off to maintain safe separation. Also, it strikes me that ATC, while he rid himself of the burden, left us on basically a collision course with traffic. A suggested heading for the climb would have also prevented any problem.
Original NASA ASRS Text
Title: A CLBING COMMUTER TURBOPROP ACFT WAS ISSUED A JET AS TFC AND INSTRUCTED TO MAINTAIN VISUAL SEPARATION WITH THE ACFT. THE PLT CONFIRMED HE HAD THE JET ACFT IN SIGHT AND COULD MAINTAIN VISUAL SEPARATION. BOTH ACFT ENDED UP LESS THAN 500 FT APART ATTEMPTING TO MANEUVER AROUND EACH OTHER.
Narrative: WHILE IN CLB TO ALT THE CTLR ADVISED OF JET TFC AT ABOUT 2:30 O'CLOCK POS. WE CONFIRMED IN SIGHT AND WERE ISSUED TO MAINTAIN VISUAL SEPARATION WHILE CLBING TO ALT OF (17000 FT?). IT SEEMED AS THOUGH THE OTHER ACFT MADE A SLIGHT CHANGE IN COURSE SUCH AS TO GO FROM SLIGHTLY CONVERGING FROM THE R TO A 90 DEG INTERCEPT OF OUR COURSE. AT ANY RATE, IT WAS DIFFICULT TO JUDGE THE CLOSURE RATE AND WE WERE UPON THE JET QUICKLY. AT ALL TIMES THE TFC WAS IN SIGHT. WE BEGAN A R TURN TO MAINTAIN A GREATER SEPARATION AT ABOUT THE SAME TIME THE JET DECIDED TO DO SO, AND AT THIS SAME TIME WE WERE PROBABLY 700 FT HORIZ AND 200 FT ABOVE. AT THE EARLIEST STAGE, THE TCASII TA WAS DISREGARDED BECAUSE WE KNEW THE TFC WAS THERE. I WAS FIXATED ON THE TFC AND CLBING. IN RETROSPECT, I SHOULD HAVE LEVELED OFF TO MAINTAIN SAFE SEPARATION. ALSO, IT STRIKES ME THAT ATC, WHILE HE RID HIMSELF OF THE BURDEN, LEFT US ON BASICALLY A COLLISION COURSE WITH TFC. A SUGGESTED HEADING FOR THE CLB WOULD HAVE ALSO PREVENTED ANY PROB.
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.