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Pilot of a beech king air BE90 climbed off assigned altitude to avoid another aircraft 1 mi away of which approach controller had previously issued a TA.
| Attributes | |
| ACN | 429234 |
| Time | |
| Date | 199902 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : ewc.vortac |
| State Reference | PA |
| Altitude | msl bound lower : 3700 msl bound upper : 4500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pit.tracon |
| Operator | common carrier : air taxi |
| Make Model Name | King Air C90 E90 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : pit.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : intermediate altitude |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 90 flight time total : 3100 flight time type : 100 |
| ASRS Report | 429234 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : took evasive action |
| Miss Distance | horizontal : 800 vertical : 300 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
We were on an IFR flight plan level at 4000 ft MSL. It was a clear day, visibility unlimited. ATC started to transmit and was stepped on. It sounded like he said traffic alert, so I said something to my copilot to find that airplane. We saw the aircraft the same time ATC gave us a traffic alert of an aircraft less than 1 mi, climbing into our flight path. When I saw the other plane, I started an immediate climb and turn to avoid the other aircraft. I broke altitude by 500 ft and then descended 300 ft below assigned altitude because I was still watching the other aircraft. We were close to our destination and canceled at that time. The other aircraft was climbing and very difficult to see even though the WX was good.
Original NASA ASRS Text
Title: PLT OF A BEECH KING AIR BE90 CLBED OFF ASSIGNED ALT TO AVOID ANOTHER ACFT 1 MI AWAY OF WHICH APCH CTLR HAD PREVIOUSLY ISSUED A TA.
Narrative: WE WERE ON AN IFR FLT PLAN LEVEL AT 4000 FT MSL. IT WAS A CLR DAY, VISIBILITY UNLIMITED. ATC STARTED TO XMIT AND WAS STEPPED ON. IT SOUNDED LIKE HE SAID TFC ALERT, SO I SAID SOMETHING TO MY COPLT TO FIND THAT AIRPLANE. WE SAW THE ACFT THE SAME TIME ATC GAVE US A TFC ALERT OF AN ACFT LESS THAN 1 MI, CLBING INTO OUR FLT PATH. WHEN I SAW THE OTHER PLANE, I STARTED AN IMMEDIATE CLB AND TURN TO AVOID THE OTHER ACFT. I BROKE ALT BY 500 FT AND THEN DSNDED 300 FT BELOW ASSIGNED ALT BECAUSE I WAS STILL WATCHING THE OTHER ACFT. WE WERE CLOSE TO OUR DEST AND CANCELED AT THAT TIME. THE OTHER ACFT WAS CLBING AND VERY DIFFICULT TO SEE EVEN THOUGH THE WX WAS GOOD.
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.