 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
There was an apparent operational error when an air carrier medium large transport responded to a TCASII alert. It had to climb to avoid an unknown intruder at the same altitude.
| Attributes | |
| ACN | 340377 |
| Time | |
| Date | 199606 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : sdf |
| State Reference | KY |
| Altitude | msl bound lower : 10000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 210 flight time total : 8000 flight time type : 600 |
| ASRS Report | 340377 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | unspecified : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Cleared to climb to 10000 ft and to intercept V53 on a heading of 360 degrees. Just prior to leveloff, traffic noted on TCASII at 10000 ft. Captain asked for traffic and it was called at 1 O'clock. Saw traffic. Pulled to climb over converging traffic as ATC cleared us to climb to 11000 ft and then to 17000 ft. Miss distance less than 1000 ft. Had we not climbed, it would have been close.
Original NASA ASRS Text
Title: THERE WAS AN APPARENT OPERROR WHEN AN ACR MLG RESPONDED TO A TCASII ALERT. IT HAD TO CLB TO AVOID AN UNKNOWN INTRUDER AT THE SAME ALT.
Narrative: CLRED TO CLB TO 10000 FT AND TO INTERCEPT V53 ON A HDG OF 360 DEGS. JUST PRIOR TO LEVELOFF, TFC NOTED ON TCASII AT 10000 FT. CAPT ASKED FOR TFC AND IT WAS CALLED AT 1 O'CLOCK. SAW TFC. PULLED TO CLB OVER CONVERGING TFC AS ATC CLRED US TO CLB TO 11000 FT AND THEN TO 17000 FT. MISS DISTANCE LESS THAN 1000 FT. HAD WE NOT CLBED, IT WOULD HAVE BEEN CLOSE.
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.