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Flight crew of a B737-200 climbed in response to departure controller request, a TCASII RA and traffic sighting an MU2 300 ft below during climb out. Thunderstorms in the area were causing ATC to vector traffic to avoid WX creating a separation problem.
| Attributes | |
| ACN | 472530 |
| Time | |
| Date | 200005 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : lga.airport |
| State Reference | NY |
| Altitude | msl single value : 9000 |
| Environment | |
| Flight Conditions | Marginal |
| Weather Elements | Thunderstorm |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90.tracon tracon : lfpg.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : vacating altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : n90.tracon |
| Operator | general aviation : corporate |
| Make Model Name | MU-2 |
| Flight Phase | climbout : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 265 flight time total : 16000 flight time type : 1100 |
| ASRS Report | 472530 |
| Person 2 | |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : multi engine pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe inflight encounter : weather |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | controller : issued advisory controller : issued new clearance controller : separated traffic other |
| Miss Distance | horizontal : 9000 vertical : 300 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Weather ATC Human Performance |
| Primary Problem | Weather |
Narrative:
After departure from lga, we were on a heading of 340 degrees. After passing 6000 ft, we were given a heading of 270 degrees while we were still climbing to 9000 ft. (At the time of our heading change, there was a small cell at 12 O'clock position, 10 mi.) as we were approaching 9000 ft we were given a TA by ATC (I think VFR traffic). At about the same time, we were getting a TCASII RA. I looked to my left and picked up the traffic visually, an MU2 about 300-400 ft below us and 1-2 mi away. The controller told us to climb, but didn't clear us to a new altitude. He was very busy with many aircraft deviating around the thunderstorm.
Original NASA ASRS Text
Title: FLC OF A B737-200 CLBED IN RESPONSE TO DEP CTLR REQUEST, A TCASII RA AND TFC SIGHTING AN MU2 300 FT BELOW DURING CLBOUT. TSTMS IN THE AREA WERE CAUSING ATC TO VECTOR TFC TO AVOID WX CREATING A SEPARATION PROB.
Narrative: AFTER DEP FROM LGA, WE WERE ON A HDG OF 340 DEGS. AFTER PASSING 6000 FT, WE WERE GIVEN A HDG OF 270 DEGS WHILE WE WERE STILL CLBING TO 9000 FT. (AT THE TIME OF OUR HDG CHANGE, THERE WAS A SMALL CELL AT 12 O'CLOCK POS, 10 MI.) AS WE WERE APCHING 9000 FT WE WERE GIVEN A TA BY ATC (I THINK VFR TFC). AT ABOUT THE SAME TIME, WE WERE GETTING A TCASII RA. I LOOKED TO MY L AND PICKED UP THE TFC VISUALLY, AN MU2 ABOUT 300-400 FT BELOW US AND 1-2 MI AWAY. THE CTLR TOLD US TO CLB, BUT DIDN'T CLR US TO A NEW ALT. HE WAS VERY BUSY WITH MANY ACFT DEVIATING AROUND THE TSTM.
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.