An air carrier F100 deviated around thunderstorms apparently without clearance. Probable heading track deviation. Non adherence to ARTCC instructions. Emergency action taken apparently without declaring an emergency.

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Attributes
ACN	345870
Time
Date	199608
Day	Tue
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : dfw
State Reference	TX
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zfw
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	departure other enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
ASRS Report	345870
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	inflight encounter : weather non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	Pilot Deviation

Narrative:

Departed dfw south for northeast departure. Just east of dfw, ATC turned us to a 50 degree heading with thunderstorms at 12 and 4 mi. Captain said we need east deviation for WX. I turned to 100 degree heading to clear thunderstorm. After clear of thunderstorm, I returned to heading.

Original NASA ASRS Text

Title: AN ACR F100 DEVIATED AROUND TSTMS APPARENTLY WITHOUT CLRNC. PROBABLE HEADING TRACK DEV. NON ADHERENCE TO ARTCC INSTRUCTIONS. EMER ACTION TAKEN APPARENTLY WITHOUT DECLARING AN EMER.

Narrative: DEPARTED DFW S FOR NE DEP. JUST E OF DFW, ATC TURNED US TO A 50 DEG HDG WITH TSTMS AT 12 AND 4 MI. CAPT SAID WE NEED E DEV FOR WX. I TURNED TO 100 DEG HDG TO CLR TSTM. AFTER CLR OF TSTM, I RETURNED TO 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.