Near midair collision.

Attributes
ACN	222740
Time
Date	199209
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : csv
State Reference	TN
Altitude	agl bound lower : 1400 agl bound upper : 1400
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tower : csv
Operator	general aviation : personal
Make Model Name	Small Aircraft
Flight Phase	descent : approach
Route In Use	approach : straight in
Flight Plan	IFR
Aircraft 2
Operator	other
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other cruise other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument pilot : cfi
Experience	flight time last 90 days : 100 flight time total : 2200 flight time type : 1400
ASRS Report	222747
Person 2
Affiliation	government : faa
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : nmac non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	Other Other
Miss Distance	horizontal : 300 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was cleared for the ILS at crossville, tn, by ZTL. While inside the locator OM inbound through a 'sucker's' cloud layer a twin small transport Y (an FAA flight check aircraft) passed me. We were both in and out of the clouds. It was at the same altitude and approximately 300 ft to my left. The aircraft had cancelled a block altitude of 4000 to 6000 and stated it would be VFR in the area of crossville. Occurrence described to FSS personal at csv after landing but no written report made.

Original NASA ASRS Text

Title: NMAC.

Narrative: I WAS CLRED FOR THE ILS AT CROSSVILLE, TN, BY ZTL. WHILE INSIDE THE LOCATOR OM INBOUND THROUGH A 'SUCKER'S' CLOUD LAYER A TWIN SMT Y (AN FAA FLT CHK ACFT) PASSED ME. WE WERE BOTH IN AND OUT OF THE CLOUDS. IT WAS AT THE SAME ALT AND APPROX 300 FT TO MY L. THE ACFT HAD CANCELLED A BLOCK ALT OF 4000 TO 6000 AND STATED IT WOULD BE VFR IN THE AREA OF CROSSVILLE. OCCURRENCE DESCRIBED TO FSS PERSONAL AT CSV AFTER LNDG BUT NO WRITTEN RPT MADE.

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.