Air carrier X TCASII RA from air carrier Y on approach. Standard separation existed. Pilot deviation...

Attributes
ACN	246998
Time
Date	199302
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ord
State Reference	IL
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other descent : approach
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other descent : approach
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	other personnel other
Qualification	controller : radar
ASRS Report	246998
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 6
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : ground less severe non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 18000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Air carrier X 3 mi in front of air carrier Y, both doing 210 KTS. Air carrier X announces he has already performed the RA and was starting back down. Communication was well after maneuver. Comment made by the controller: 'I already had desired spacing. If X airlines wants more room on final, behind them, this is nothing further holding and delays will not cure.'

Original NASA ASRS Text

Title: ACR X TCASII RA FROM ACR Y ON APCH. STANDARD SEPARATION EXISTED. PLTDEV.

Narrative: ACR X 3 MI IN FRONT OF ACR Y, BOTH DOING 210 KTS. ACR X ANNOUNCES HE HAS ALREADY PERFORMED THE RA AND WAS STARTING BACK DOWN. COM WAS WELL AFTER MANEUVER. COMMENT MADE BY THE CTLR: 'I ALREADY HAD DESIRED SPACING. IF X AIRLINES WANTS MORE ROOM ON FINAL, BEHIND THEM, THIS IS NOTHING FURTHER HOLDING AND DELAYS WILL NOT CURE.'

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.