Flight crew of an mdt overshot climb altitude due to WX encounter and responding to a TCASII RA.

Attributes
ACN	306450
Time
Date	199506
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : ewr airport : jfk
State Reference	NJ
Altitude	msl bound lower : 14000 msl bound upper : 14200
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	departure other enroute airway : n90
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 95 flight time total : 21300
ASRS Report	306450
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	altitude deviation : overshoot conflict : airborne less severe inflight encounter : weather non adherence : clearance other anomaly other
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Miss Distance	horizontal : 9000 vertical : 800
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Due to thunderstorms and traffic, center would not accept our handoff from the TRACON. We were directed to make a 140 degree right turn to a 360 degree heading. This pointed us at a cell which drew our attention to the radar. The aircraft was light and our rate of climb was high at about 3500 FPM. Our assigned altitude was 14000 ft about 1500 ft below our assigned altitude, I started to level off and at the same time we entered turbulence with mostly updrafts. In very fast succession, our TCASII announced 'traffic' and an RA of 'monitor vertical speed.' with the combination of monitoring radar, turbulence and making an assessment of the TCASII RA, we exceeded our assigned altitude by 200 ft for about 5 seconds. At this time an airline flight indicated he had a TCASII RA and was responding. Contributing also was the need to disconnect the autoplt in the turbulence and a missed altitude callout from the copilot. Always expect the unexpected and when conditions are changing rapidly reduce high airspeed and rate or climb so the situation can be managed comfortably.

Original NASA ASRS Text

Title: FLC OF AN MDT OVERSHOT CLB ALT DUE TO WX ENCOUNTER AND RESPONDING TO A TCASII RA.

Narrative: DUE TO TSTMS AND TFC, CTR WOULD NOT ACCEPT OUR HDOF FROM THE TRACON. WE WERE DIRECTED TO MAKE A 140 DEG R TURN TO A 360 DEG HDG. THIS POINTED US AT A CELL WHICH DREW OUR ATTENTION TO THE RADAR. THE ACFT WAS LIGHT AND OUR RATE OF CLB WAS HIGH AT ABOUT 3500 FPM. OUR ASSIGNED ALT WAS 14000 FT ABOUT 1500 FT BELOW OUR ASSIGNED ALT, I STARTED TO LEVEL OFF AND AT THE SAME TIME WE ENTERED TURB WITH MOSTLY UPDRAFTS. IN VERY FAST SUCCESSION, OUR TCASII ANNOUNCED 'TFC' AND AN RA OF 'MONITOR VERT SPD.' WITH THE COMBINATION OF MONITORING RADAR, TURB AND MAKING AN ASSESSMENT OF THE TCASII RA, WE EXCEEDED OUR ASSIGNED ALT BY 200 FT FOR ABOUT 5 SECONDS. AT THIS TIME AN AIRLINE FLT INDICATED HE HAD A TCASII RA AND WAS RESPONDING. CONTRIBUTING ALSO WAS THE NEED TO DISCONNECT THE AUTOPLT IN THE TURB AND A MISSED ALT CALLOUT FROM THE COPLT. ALWAYS EXPECT THE UNEXPECTED AND WHEN CONDITIONS ARE CHANGING RAPIDLY REDUCE HIGH AIRSPD AND RATE OR CLB SO THE SIT CAN BE MANAGED COMFORTABLY.

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.