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MD80 makes TCASII evasive maneuver due to a descending air carrier in conflict as the MD80 transitions from ZOB to ZNY.
| Attributes | |
| ACN | 519839 |
| Time | |
| Date | 200108 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : slt.vortac |
| State Reference | PA |
| Altitude | msl single value : 24000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 6500 flight time type : 600 |
| ASRS Report | 519839 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | flight crew : overrode automation flight crew : took evasive action flight crew : took precautionary avoidance action |
| Miss Distance | horizontal : 3000 vertical : 700 |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure Operational Error |
Narrative:
In cruise flight at FL240, TCASII gave a TA of traffic at 11 O'clock and 5 mi descending. Then an RA to descend. I was the PF, so I disconnected the autoplt and followed the guidance to descend at approximately 700 FPM to FL232. The captain advised ATC of our deviation as I started the descent. Once clear of traffic and after being cleared by ZNY on frequency 132.17 we climbed to FL240. Nothing further.
Original NASA ASRS Text
Title: MD80 MAKES TCASII EVASIVE MANEUVER DUE TO A DSNDING ACR IN CONFLICT AS THE MD80 TRANSITIONS FROM ZOB TO ZNY.
Narrative: IN CRUISE FLT AT FL240, TCASII GAVE A TA OF TFC AT 11 O'CLOCK AND 5 MI DSNDING. THEN AN RA TO DSND. I WAS THE PF, SO I DISCONNECTED THE AUTOPLT AND FOLLOWED THE GUIDANCE TO DSND AT APPROX 700 FPM TO FL232. THE CAPT ADVISED ATC OF OUR DEV AS I STARTED THE DSCNT. ONCE CLR OF TFC AND AFTER BEING CLRED BY ZNY ON FREQ 132.17 WE CLBED TO FL240. NOTHING FURTHER.
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.