Less than standard separation commuter light transport and unknown traffic during descent into dfw.

Attributes
ACN	194302
Time
Date	199111
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : scy airport : dfw
State Reference	TX
Altitude	msl bound lower : 6000 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw artcc : hecc
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	cruise other descent other
Route In Use	enroute airway : zfw
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 220 flight time total : 5500
ASRS Report	194302
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	none taken : unable none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Flight heard on radio to descend to 6000 ft from 8000 ft. Replied and did not hear anything else until was told near miss by ATC. ATC also claims to have told us not to descend after our response, we did not hear this. Radio communication breakdown cause: noticed later on another flight that #1 communication radio faded in and out.

Original NASA ASRS Text

Title: LTSS COMMUTER LTT AND UNKNOWN TFC DURING DSCNT INTO DFW.

Narrative: FLT HEARD ON RADIO TO DSND TO 6000 FT FROM 8000 FT. REPLIED AND DID NOT HEAR ANYTHING ELSE UNTIL WAS TOLD NEAR MISS BY ATC. ATC ALSO CLAIMS TO HAVE TOLD US NOT TO DSND AFTER OUR RESPONSE, WE DID NOT HEAR THIS. RADIO COM BREAKDOWN CAUSE: NOTICED LATER ON ANOTHER FLT THAT #1 COM RADIO FADED IN AND OUT.

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.