Altitude deviation altitude excursion after TCASII RA received.

Attributes
ACN	246402
Time
Date	199307
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dtw
State Reference	MI
Altitude	msl bound lower : 11000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dtw
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : flight engineer pilot : commercial pilot : instrument
Experience	flight time last 90 days : 210 flight time total : 6000 flight time type : 4000
ASRS Report	246402
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	vertical : 4600
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Responded to RA on TCASII however seemed to be error of other aircraft's altitude reporting. ATC showed 4600 ft vertical separation. The TCASII was responding to information from other aircraft so it was a valid RA for information.

Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION AFTER TCASII RA RECEIVED.

Narrative: RESPONDED TO RA ON TCASII HOWEVER SEEMED TO BE ERROR OF OTHER ACFT'S ALT RPTING. ATC SHOWED 4600 FT VERT SEPARATION. THE TCASII WAS RESPONDING TO INFO FROM OTHER ACFT SO IT WAS A VALID RA FOR INFO.

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.