Dash 8-300 PIC refuses to comply with amended clearance altitude change route heading change.

Attributes
ACN	309920
Time
Date	199507
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : dbl
State Reference	CO
Altitude	msl bound lower : 22000 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv tower : dfw
Operator	common carrier : air carrier
Make Model Name	Dash 8-200
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : on vectors enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 9900 flight time type : 275
ASRS Report	309920
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : undershoot non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllera other flight crewa
Resolutory Action	controller : issued new clearance flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On our trip from denver to grand junction we had a drift down route we were flying. We had to cross the red table VOR 062 degree radial at 16 mi at FL240. Prior to the restr center called and told us to descend to FL220. We told center we were unable because of our drift down restr. He then told us to turn right 90 degrees. We again told center unable because we have to stay within 5 mi of centerline. He then asked if we were declaring an emergency. We said no. He responded by telling us to turn right 90 degrees. We told him again, unable because of drift down. He asked again are you declaring an emergency, we said no. He told us again turn right 90 degrees. At this time we turned right 90 degrees. We were able to stay within our 5 mi of centerline. After traffic passed he cleared us on course. There was no conflict with the other traffic. The traffic was a dc-10 they wanted to top us with. We would like to know why the dc-10 could not turn left so we could stay on our drift down route.

Original NASA ASRS Text

Title: DASH 8-300 PIC REFUSES TO COMPLY WITH AMENDED CLRNC ALT CHANGE RTE HDG CHANGE.

Narrative: ON OUR TRIP FROM DENVER TO GRAND JUNCTION WE HAD A DRIFT DOWN RTE WE WERE FLYING. WE HAD TO CROSS THE RED TABLE VOR 062 DEG RADIAL AT 16 MI AT FL240. PRIOR TO THE RESTR CTR CALLED AND TOLD US TO DSND TO FL220. WE TOLD CTR WE WERE UNABLE BECAUSE OF OUR DRIFT DOWN RESTR. HE THEN TOLD US TO TURN R 90 DEGS. WE AGAIN TOLD CTR UNABLE BECAUSE WE HAVE TO STAY WITHIN 5 MI OF CTRLINE. HE THEN ASKED IF WE WERE DECLARING AN EMER. WE SAID NO. HE RESPONDED BY TELLING US TO TURN R 90 DEGS. WE TOLD HIM AGAIN, UNABLE BECAUSE OF DRIFT DOWN. HE ASKED AGAIN ARE YOU DECLARING AN EMER, WE SAID NO. HE TOLD US AGAIN TURN R 90 DEGS. AT THIS TIME WE TURNED R 90 DEGS. WE WERE ABLE TO STAY WITHIN OUR 5 MI OF CTRLINE. AFTER TFC PASSED HE CLRED US ON COURSE. THERE WAS NO CONFLICT WITH THE OTHER TFC. THE TFC WAS A DC-10 THEY WANTED TO TOP US WITH. WE WOULD LIKE TO KNOW WHY THE DC-10 COULD NOT TURN L SO WE COULD STAY ON OUR DRIFT DOWN RTE.

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.