Flight crew of widebody transport at FL310 received TCASII RA. Aircraft wax climbed to FL322 before RA was cleared. No traffic visually idented.

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Attributes
ACN	195099
Time
Date	199111
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : mod
State Reference	CA
Altitude	msl bound lower : 31000 msl bound upper : 32200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa artcc : zhn
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : commercial pilot : cfi pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 0 flight time total : 1500 flight time type : 150
ASRS Report	195099
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : atp pilot : instrument
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 : took evasive action
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

At 31000 ft 90 mi east of modesto, received 'traffic' warning from TCASII, followed by climb command. Climbed to 32200 ft before warning ceased, and informed ATC immediately. No traffic was visually observed, TCASII showed 2 targets (red) in our present position at 31000 ft.

Original NASA ASRS Text

Title: FLC OF WDB AT FL310 RECEIVED TCASII RA. ACFT WAX CLBED TO FL322 BEFORE RA WAS CLRED. NO TFC VISUALLY IDENTED.

Narrative: AT 31000 FT 90 MI E OF MODESTO, RECEIVED 'TFC' WARNING FROM TCASII, FOLLOWED BY CLB COMMAND. CLBED TO 32200 FT BEFORE WARNING CEASED, AND INFORMED ATC IMMEDIATELY. NO TFC WAS VISUALLY OBSERVED, TCASII SHOWED 2 TARGETS (RED) IN OUR PRESENT POS AT 31000 FT.

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.