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Flight crew of an large transport air carrier aircraft climbed above assigned cruise altitude in response to a TCASII RA.
| Attributes | |
| ACN | 248233 |
| Time | |
| Date | 199308 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : rka |
| State Reference | NY |
| Altitude | msl bound lower : 24000 msl bound upper : 24700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zbw |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : corporate |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 215 flight time total : 10000 |
| ASRS Report | 248233 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : instrument |
| 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 |
| Miss Distance | vertical : 1700 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
En route from toronto to new york, lga. During cruise flight at FL240 our TCASII system detected a target at 12 O'clock and closing rapidly and climbing to FL230. ATC had not issued a TA. As the intruder closed on us, our TCASII system commanded a climb and the crew responded with an immediate climb to FL247, then acquired the traffic visually. Returned to FL240 and notified ATC of the deviation from assigned altitude.
Original NASA ASRS Text
Title: FLC OF AN LGT ACR ACFT CLBED ABOVE ASSIGNED CRUISE ALT IN RESPONSE TO A TCASII RA.
Narrative: ENRTE FROM TORONTO TO NEW YORK, LGA. DURING CRUISE FLT AT FL240 OUR TCASII SYS DETECTED A TARGET AT 12 O'CLOCK AND CLOSING RAPIDLY AND CLBING TO FL230. ATC HAD NOT ISSUED A TA. AS THE INTRUDER CLOSED ON US, OUR TCASII SYS COMMANDED A CLB AND THE CREW RESPONDED WITH AN IMMEDIATE CLB TO FL247, THEN ACQUIRED THE TFC VISUALLY. RETURNED TO FL240 AND NOTIFIED ATC OF THE DEV FROM ASSIGNED ALT.
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.