Flight crew of an medium large transport air carrier aircraft took evasive action and climbed above assigned altitude in response to a TCASII RA which was caused by a fast climbing cpr jet below their altitude.

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Attributes
ACN	245086
Time
Date	199306
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : djb
State Reference	OH
Altitude	msl bound lower : 29000 msl bound upper : 29500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : cfi pilot : atp pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 600 flight time total : 6000 flight time type : 3000
ASRS Report	245086
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 118 flight time total : 11337 flight time type : 7453
ASRS Report	245219
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 12000 vertical : 1000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

In cruise flight at FL290, 50 NM nnw of djb VOR, the TCASII issued a TA for an intruder at 10 O'clock and 8 NM, 1600 ft below our altitude and climbing. The TA became an RA and a climb was directed by TCASII and accomplished by the captain. Reaching approximately FL295 a 'monitor vertical speed' command was received indicating level off, followed within seconds by a 'clear of conflict' call. ZOB was notified, as we descended back to FL290. ZOB then informed us that an light transport jet had leveled at FL280 below us. I believe the TA/RA was caused by the light transport jet high rate of climb below us as well as reduced separation (1000 ft) below FL290. The deviation may also have been avoided if ZOB had called out the traffic and we could have acquired the traffic visually, possibly averting the need to climb out of our assigned altitude.

Original NASA ASRS Text

Title: FLC OF AN MLG ACR ACFT TOOK EVASIVE ACTION AND CLBED ABOVE ASSIGNED ALT IN RESPONSE TO A TCASII RA WHICH WAS CAUSED BY A FAST CLBING CPR JET BELOW THEIR ALT.

Narrative: IN CRUISE FLT AT FL290, 50 NM NNW OF DJB VOR, THE TCASII ISSUED A TA FOR AN INTRUDER AT 10 O'CLOCK AND 8 NM, 1600 FT BELOW OUR ALT AND CLBING. THE TA BECAME AN RA AND A CLB WAS DIRECTED BY TCASII AND ACCOMPLISHED BY THE CAPT. REACHING APPROX FL295 A 'MONITOR VERT SPD' COMMAND WAS RECEIVED INDICATING LEVEL OFF, FOLLOWED WITHIN SECONDS BY A 'CLR OF CONFLICT' CALL. ZOB WAS NOTIFIED, AS WE DSNDED BACK TO FL290. ZOB THEN INFORMED US THAT AN LTT JET HAD LEVELED AT FL280 BELOW US. I BELIEVE THE TA/RA WAS CAUSED BY THE LTT JET HIGH RATE OF CLB BELOW US AS WELL AS REDUCED SEPARATION (1000 FT) BELOW FL290. THE DEV MAY ALSO HAVE BEEN AVOIDED IF ZOB HAD CALLED OUT THE TFC AND WE COULD HAVE ACQUIRED THE TFC VISUALLY, POSSIBLY AVERTING THE NEED TO CLB OUT OF OUR ASSIGNED ALT.

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.