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Captain of an medium large transport lost 300 ft of altitude while making quick turn to comply with approach controller heading change for traffic separation.
| Attributes | |
| ACN | 515423 |
| Time | |
| Date | 200106 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : cle.airport |
| State Reference | OH |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport, Low Wing, 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 130 flight time total : 10000 flight time type : 3000 |
| ASRS Report | 515423 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 10000 flight time type : 1200 |
| ASRS Report | 515431 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | controller : separated traffic |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Near keatn intersection inbound to cle, ATC was questioning commuter aircraft about their altitude. About that time we got a TCASII alert -- sound of controller voice and immediate heading given to us of 360 degrees from a 310 degree heading caused me to react quickly. I executed a 45 degree bank turn but lost 300 ft while turning. If I were to make a steep bank turn in the future, I will turn off my flight director.
Original NASA ASRS Text
Title: CAPT OF AN MLG LOST 300 FT OF ALT WHILE MAKING QUICK TURN TO COMPLY WITH APCH CTLR HDG CHANGE FOR TFC SEPARATION.
Narrative: NEAR KEATN INTXN INBOUND TO CLE, ATC WAS QUESTIONING COMMUTER ACFT ABOUT THEIR ALT. ABOUT THAT TIME WE GOT A TCASII ALERT -- SOUND OF CTLR VOICE AND IMMEDIATE HDG GIVEN TO US OF 360 DEGS FROM A 310 DEG HDG CAUSED ME TO REACT QUICKLY. I EXECUTED A 45 DEG BANK TURN BUT LOST 300 FT WHILE TURNING. IF I WERE TO MAKE A STEEP BANK TURN IN THE FUTURE, I WILL TURN OFF MY FLT DIRECTOR.
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.