Near midair collision.

Attributes
ACN	279606
Time
Date	199407
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : vhp airport : ind
State Reference	IN
Altitude	msl bound lower : 10000 msl bound upper : 10800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute : on vectors enroute airway : ind
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	descent other
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 210 flight time total : 9000 flight time type : 5500
ASRS Report	279606
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : nmac non adherence : far non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 500 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were inbound to vhp on initial approach, north of delee intersection at 10000 ft talking to ind approach control. At approximately 30 NM south of vhp we were cleared to 7000 ft and simultaneously given a traffic call at our 12 O'clock 2 1/2 NM. TCASII announced the traffic and depicted him descending toward or altitude still at our 12 to 1230 O'clock. Shortly thereafter, TCASII gave an RA with a command to climb. We complied with TCASII and climbed to 10800 ft and picked up the traffic visually (a cessna 172) at our 12:30 to 1 O'clock position low, about 500 ft to 700 ft. Approach control issued the initial traffic call but did not say that the traffic was descending. Nor did he keep us advised of the traffic. He seemed unaware of the impending conflict and if it was not for TCASII, the possibility of a collision would have been very close. TCASII worked as advertised and took up the slack of a weak approach controller.

Original NASA ASRS Text

Title: NMAC.

Narrative: WE WERE INBOUND TO VHP ON INITIAL APCH, N OF DELEE INTXN AT 10000 FT TALKING TO IND APCH CTL. AT APPROX 30 NM S OF VHP WE WERE CLRED TO 7000 FT AND SIMULTANEOUSLY GIVEN A TFC CALL AT OUR 12 O'CLOCK 2 1/2 NM. TCASII ANNOUNCED THE TFC AND DEPICTED HIM DSNDING TOWARD OR ALT STILL AT OUR 12 TO 1230 O'CLOCK. SHORTLY THEREAFTER, TCASII GAVE AN RA WITH A COMMAND TO CLB. WE COMPLIED WITH TCASII AND CLBED TO 10800 FT AND PICKED UP THE TFC VISUALLY (A CESSNA 172) AT OUR 12:30 TO 1 O'CLOCK POS LOW, ABOUT 500 FT TO 700 FT. APCH CTL ISSUED THE INITIAL TFC CALL BUT DID NOT SAY THAT THE TFC WAS DSNDING. NOR DID HE KEEP US ADVISED OF THE TFC. HE SEEMED UNAWARE OF THE IMPENDING CONFLICT AND IF IT WAS NOT FOR TCASII, THE POSSIBILITY OF A COLLISION WOULD HAVE BEEN VERY CLOSE. TCASII WORKED AS ADVERTISED AND TOOK UP THE SLACK OF A WEAK APCH CTLR.

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.