Altitude deviation altitude excursion during flight crew response to TCASII RA.

Attributes
ACN	218674
Time
Date	199208
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : jhw
State Reference	NY
Altitude	msl bound lower : 29000 msl bound upper : 29900
Environment
Flight Conditions	IMC
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	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 14000 flight time type : 150
ASRS Report	218674
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : required legal separation non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 700
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While at cruise flight FL290, TCASII RA to climb. TCASII altitude separation shown at 800 ft. Commenced climb to FL29.9. TCASII warnings ceased with no further traffic conflict. Advised ZOB of climb. ARTCC advised that descent back down to FL290 was not necessary since FL330 was requested prior to incident.

Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION DURING FLC RESPONSE TO TCASII RA.

Narrative: WHILE AT CRUISE FLT FL290, TCASII RA TO CLB. TCASII ALT SEPARATION SHOWN AT 800 FT. COMMENCED CLB TO FL29.9. TCASII WARNINGS CEASED WITH NO FURTHER TFC CONFLICT. ADVISED ZOB OF CLB. ARTCC ADVISED THAT DSCNT BACK DOWN TO FL290 WAS NOT NECESSARY SINCE FL330 WAS REQUESTED PRIOR TO INCIDENT.

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.