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Air carrier X TCASII RA climb had less than standard separation from air carrier Y TCASII RA climb. Evasive action taken. Near midair collision.
| Attributes | |
| ACN | 301745 |
| Time | |
| Date | 199504 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : aco |
| State Reference | OH |
| Altitude | msl bound lower : 28000 msl bound upper : 30000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 8000 flight time type : 5000 |
| ASRS Report | 301745 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : nmac non adherence : clearance non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 500 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Air carrier X climbing to FL270 caused a TCASII RA on air carrier X. X climbed from FL280 causing us air carrier Y to get a TCASII RA. Climbed greater than 2000 FPM -- we climbed to FL300 until clear of contact, returned to FL290. ZOB frequency 119.87.
Original NASA ASRS Text
Title: ACR X TCASII RA CLB HAD LTSS FROM ACR Y TCASII RA CLB. EVASIVE ACTION TAKEN. NMAC.
Narrative: ACR X CLBING TO FL270 CAUSED A TCASII RA ON ACR X. X CLBED FROM FL280 CAUSING US ACR Y TO GET A TCASII RA. CLBED GREATER THAN 2000 FPM -- WE CLBED TO FL300 UNTIL CLR OF CONTACT, RETURNED TO FL290. ZOB FREQ 119.87.
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.