An FK10 PIC report on an alleged approach controller attitude and ATC procedure in issuance of a des...

Attributes
ACN	425850
Time
Date	199901
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ict
State Reference	KS
Altitude	msl bound lower : 10000 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mia
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Navigation In Use	Other
Flight Phase	cruise other descent other
Flight Plan	IFR
Aircraft 2
Make Model Name	Bonanza 35
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	425850
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
Events
Anomaly	conflict : airborne less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	vertical : 400
Supplementary
Air Traffic Incident	Operational Deviation other

Narrative:

Ict approach control. Location: approximately 25 mi sse ict. I was PNF. We were descending to 10000 ft and a small aircraft was called as traffic at our 10 O'clock position at 9500 ft eastbound. We were leveling at 10000 ft. The TCASII commanded 'climb, climb,' followed by reduced vertical speed, then clear of conflict. The first officer, PF, followed the commands smoothly and as we leveled at 10000 ft exactly, on autoplt, the altitude on the bonanza showed -400 ft. That aircraft was in sight the entire time of the event, and just prior to the RA also. During this event (that I advised the controller about immediately) he gave us further clearance during the event that was blocked by the TCASII RA commands. Everything was fine other than the advisory itself, but it seemed that it was too sensitive as we were descending very slowly -- only 100-200 FPM for the last 200-300 ft or so. No real conflict developed as the bonanza was in sight the entire time. But what is disturbing is that the controller appeared not to understand that we were responding accordingly and nonchalantly giving us further descent clearance.

Original NASA ASRS Text

Title: AN FK10 PIC RPT ON AN ALLEGED APCH CTLR ATTITUDE AND ATC PROC IN ISSUANCE OF A DSCNT CLRNC THROUGH AN OCCUPIED ALT OF A XING BONANZA.

Narrative: ICT APCH CTL. LOCATION: APPROX 25 MI SSE ICT. I WAS PNF. WE WERE DSNDING TO 10000 FT AND A SMALL ACFT WAS CALLED AS TFC AT OUR 10 O'CLOCK POS AT 9500 FT EBOUND. WE WERE LEVELING AT 10000 FT. THE TCASII COMMANDED 'CLB, CLB,' FOLLOWED BY REDUCED VERT SPD, THEN CLR OF CONFLICT. THE FO, PF, FOLLOWED THE COMMANDS SMOOTHLY AND AS WE LEVELED AT 10000 FT EXACTLY, ON AUTOPLT, THE ALT ON THE BONANZA SHOWED -400 FT. THAT ACFT WAS IN SIGHT THE ENTIRE TIME OF THE EVENT, AND JUST PRIOR TO THE RA ALSO. DURING THIS EVENT (THAT I ADVISED THE CTLR ABOUT IMMEDIATELY) HE GAVE US FURTHER CLRNC DURING THE EVENT THAT WAS BLOCKED BY THE TCASII RA COMMANDS. EVERYTHING WAS FINE OTHER THAN THE ADVISORY ITSELF, BUT IT SEEMED THAT IT WAS TOO SENSITIVE AS WE WERE DSNDING VERY SLOWLY -- ONLY 100-200 FPM FOR THE LAST 200-300 FT OR SO. NO REAL CONFLICT DEVELOPED AS THE BONANZA WAS IN SIGHT THE ENTIRE TIME. BUT WHAT IS DISTURBING IS THAT THE CTLR APPEARED NOT TO UNDERSTAND THAT WE WERE RESPONDING ACCORDINGLY AND NONCHALANTLY GIVING US FURTHER DSCNT CLRNC.

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.

An FK10 PIC report on an alleged approach controller attitude and ATC procedure in issuance of a descent clearance through an occupied altitude of a crossing bonanza.