Small transport flight crew not operating at proper altitude for direction of flight. Should have been at 14500'. He was at 14200'. Medium large transport flight crew took evasive action.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	142252
Time
Date	199004
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : cvg
State Reference	OH
Altitude	msl bound lower : 14000 msl bound upper : 14200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport
Flight Phase	cruise other
Route In Use	enroute airway : zid
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : non radar
Qualification	controller : radar
Experience	controller non radar : 5 controller radar : 3
ASRS Report	142252
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	conflict : nmac
Independent Detector	other controllera
Resolutory Action	flight crew : took evasive action other
Consequence	faa : investigated
Miss Distance	horizontal : 4500 vertical : 50
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While working the manual control position at cvg radar sector, the radar controller was busy with a multiple radar vector situation southwest of cmh. I noticed mode C intruder activate. I brought this to the attention of the radar person who immediately started calling traffic to the medium large transport en route sdf at 14000'. The flight crew started looking and kept questioning the relative position. The other aircraft type unknown operating in VFR conditions was at altitude 14200', west heading. When targets merged the pilot acknowledged he saw the aircraft at the last possible second and estimated passage at 50'. He said the aircraft was of an small transport series, blue and white, 'meandering around.' we asked the pilot if he wanted to file a near miss and he did. We gave them the center quality assurance phone #. After this I, the manual controller, watched the aircraft descend and operate in the vicinity of hook field, oh. I informed both cvg approach and day approach. Day approach south radar tracked the aircraft to a private airport in southern oh.

Original NASA ASRS Text

Title: SMT FLT CREW NOT OPERATING AT PROPER ALT FOR DIRECTION OF FLT. SHOULD HAVE BEEN AT 14500'. HE WAS AT 14200'. MLG FLT CREW TOOK EVASIVE ACTION.

Narrative: WHILE WORKING THE MANUAL CTL POS AT CVG RADAR SECTOR, THE RADAR CTLR WAS BUSY WITH A MULTIPLE RADAR VECTOR SITUATION SW OF CMH. I NOTICED MODE C INTRUDER ACTIVATE. I BROUGHT THIS TO THE ATTN OF THE RADAR PERSON WHO IMMEDIATELY STARTED CALLING TFC TO THE MLG ENRTE SDF AT 14000'. THE FLT CREW STARTED LOOKING AND KEPT QUESTIONING THE RELATIVE POS. THE OTHER ACFT TYPE UNKNOWN OPERATING IN VFR CONDITIONS WAS AT ALT 14200', W HDG. WHEN TARGETS MERGED THE PLT ACKNOWLEDGED HE SAW THE ACFT AT THE LAST POSSIBLE SECOND AND ESTIMATED PASSAGE AT 50'. HE SAID THE ACFT WAS OF AN SMT SERIES, BLUE AND WHITE, 'MEANDERING AROUND.' WE ASKED THE PLT IF HE WANTED TO FILE A NEAR MISS AND HE DID. WE GAVE THEM THE CENTER QUALITY ASSURANCE PHONE #. AFTER THIS I, THE MANUAL CTLR, WATCHED THE ACFT DSND AND OPERATE IN THE VICINITY OF HOOK FIELD, OH. I INFORMED BOTH CVG APCH AND DAY APCH. DAY APCH S RADAR TRACKED THE ACFT TO A PVT ARPT IN SOUTHERN OH.

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.