A B727 flight crew forgets to tell new controller that they are vectoring for WX avoidance.

Attributes
ACN	520330
Time
Date	200108
Day	Mon
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : cys.airport
State Reference	WY
Altitude	msl single value : 29000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 6400 flight time type : 400
ASRS Report	520330
Events
Anomaly	inflight encounter : weather non adherence : clearance other anomaly other other spatial deviation
Resolutory Action	controller : issued advisory controller : issued new clearance flight crew : returned to intended or assigned course
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance Weather ATC Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Deviating for thunderstorms en route from den to msp, den ATC advised our close proximity to another aircraft at our same altitude. ATC advised aircraft was approximately 5 1/2 mi from our position. Deviations we made were cleared to us earlier by another controller. However, a new controller had us and expected us to be on an assigned heading. I was so on flight, no TCASII alerts were received and no deviations were necessary to avoid any conflict. I believe miscoms between controllers and between crew members in our aircraft contributed to this. Unclr instructions were given to us about further clearance to deviate around WX or to maintain an assigned heading.

Original NASA ASRS Text

Title: A B727 FLT CREW FORGETS TO TELL NEW CTLR THAT THEY ARE VECTORING FOR WX AVOIDANCE.

Narrative: DEVIATING FOR TSTMS ENRTE FROM DEN TO MSP, DEN ATC ADVISED OUR CLOSE PROX TO ANOTHER ACFT AT OUR SAME ALT. ATC ADVISED ACFT WAS APPROX 5 1/2 MI FROM OUR POS. DEVS WE MADE WERE CLRED TO US EARLIER BY ANOTHER CTLR. HOWEVER, A NEW CTLR HAD US AND EXPECTED US TO BE ON AN ASSIGNED HDG. I WAS SO ON FLT, NO TCASII ALERTS WERE RECEIVED AND NO DEVS WERE NECESSARY TO AVOID ANY CONFLICT. I BELIEVE MISCOMS BTWN CTLRS AND BTWN CREW MEMBERS IN OUR ACFT CONTRIBUTED TO THIS. UNCLR INSTRUCTIONS WERE GIVEN TO US ABOUT FURTHER CLRNC TO DEVIATE AROUND WX OR TO MAINTAIN AN ASSIGNED HDG.

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.