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Flight crew of air carrier medium large transport aircraft diverted to a higher altitude than assigned in response to a TCASII RA.
| Attributes | |
| ACN | 221678 |
| Time | |
| Date | 199209 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : crl |
| State Reference | MI |
| Altitude | msl bound lower : 23000 msl bound upper : 23800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob tower : sba |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport |
| Flight Phase | cruise other |
| Route In Use | enroute airway : zob |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 80 flight time total : 14800 flight time type : 17 |
| ASRS Report | 221678 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : atp |
| Experience | flight time last 90 days : 190 flight time total : 10000 flight time type : 700 |
| ASRS Report | 221493 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Cruising at FL230 received a low volume TCASII TA immediate RA calling for climb. Climbed to 23800 ft at which time RA terminated (noted TCASII traffic 900 ft below). Descended to FL230 and notified ATC. Traffic was not seen by crew. No conflicting other traffic as a result of TCASII maneuver. Supplemental information from acn 221493: at FL230 inbound to carlton, we got a TA from opposite direction at FL220 and 5 mi. At 2 1/2 mi he went to 900 ft below our altitude. At that point we got a 'climb now.' we had to go to 23800 ft before it let us stop.
Original NASA ASRS Text
Title: FLC OF ACR MLG ACFT DIVERTED TO A HIGHER ALT THAN ASSIGNED IN RESPONSE TO A TCASII RA.
Narrative: CRUISING AT FL230 RECEIVED A LOW VOLUME TCASII TA IMMEDIATE RA CALLING FOR CLB. CLBED TO 23800 FT AT WHICH TIME RA TERMINATED (NOTED TCASII TFC 900 FT BELOW). DSNDED TO FL230 AND NOTIFIED ATC. TFC WAS NOT SEEN BY CREW. NO CONFLICTING OTHER TFC AS A RESULT OF TCASII MANEUVER. SUPPLEMENTAL INFO FROM ACN 221493: AT FL230 INBOUND TO CARLTON, WE GOT A TA FROM OPPOSITE DIRECTION AT FL220 AND 5 MI. AT 2 1/2 MI HE WENT TO 900 FT BELOW OUR ALT. AT THAT POINT WE GOT A 'CLB NOW.' WE HAD TO GO TO 23800 FT BEFORE IT LET US STOP.
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.