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Altitude deviation altitude excursion during flight crew response to TCASII RA in a potential conflict less than standard separation with crossing descending unknown VFR traffic.
| Attributes | |
| ACN | 216796 |
| Time | |
| Date | 199207 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bdr |
| State Reference | NY |
| Altitude | msl bound lower : 8500 msl bound upper : 9000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport, High Wing, 2 Turboprop Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | enroute : direct |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 265 flight time total : 5300 |
| ASRS Report | 216796 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : required legal separation non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 4500 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Approximately 2 NM northeast of bdr VOR, at 9000 ft, received a TCASII RA to descend 1500 FPM. The conflict was resolved -- 8500 ft MSL at which time flight climbed to 9000 ft. ATC was notified both before and after the RA and informed of the crew's intentions. Contributing factors: non participating VFR commuter, part 135, descending across an airway at a cardinal altitude.
Original NASA ASRS Text
Title: ALTDEV ALT EXCURSION DURING FLC RESPONSE TO TCASII RA IN A POTENTIAL CONFLICT LTSS WITH XING DSNDING UNKNOWN VFR TFC.
Narrative: APPROX 2 NM NE OF BDR VOR, AT 9000 FT, RECEIVED A TCASII RA TO DSND 1500 FPM. THE CONFLICT WAS RESOLVED -- 8500 FT MSL AT WHICH TIME FLT CLBED TO 9000 FT. ATC WAS NOTIFIED BOTH BEFORE AND AFTER THE RA AND INFORMED OF THE CREW'S INTENTIONS. CONTRIBUTING FACTORS: NON PARTICIPATING VFR COMMUTER, PART 135, DSNDING ACROSS AN AIRWAY AT A CARDINAL 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.