An air carrier flight crew accepts a climb clearance and is later told that it was not for them in proximity of thunderstorm activity 90 mi northwest of fwa, in.

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Attributes
ACN	483082
Time
Date	200008
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : fwa.vortac
State Reference	IN
Altitude	msl bound lower : 23000 msl bound upper : 26000
Environment
Flight Conditions	Mixed
Weather Elements	Thunderstorm Turbulence
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zau.artcc
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	climbout : vacating altitude
Route In Use	departure : on vectors enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : atp
Experience	controller military : 22 controller radar : 23 flight time last 90 days : 220 flight time total : 4800 flight time type : 685
ASRS Report	483082
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 285 flight time total : 20000 flight time type : 16000
ASRS Report	483080
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance controller : issued advisory other
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	ATC Human Performance Environmental Factor Weather Flight Crew Human Performance Airspace Structure
Primary Problem	Environmental Factor
Air Traffic Incident	Pilot Deviation

Narrative:

After passing gipper (gij), cleared direct to fort wayne (fwa), a 150 degree heading, level at FL230 with a line of numerous thunderstorms between aircraft position and fwa. 150 degree heading, requested deviation to 210 degree heading to avoid thunderstorm (WX). Center cleared deviation right off course and cleared climb to FL330 (filed FL370). Captain turned aircraft to 210 degree heading and initiated climb to FL330. In the climb (at FL250) ZAU asked our altitude. I responded passing FL250 for FL330. ZAU said, 'no, you were not cleared to FL330,' and to, 'stop at FL260.' captain leveled aircraft at FL260. Radio communication was extremely busy with numerous aircraft on the same radio frequency. Everyone was avoiding the same thunderstorms. After we were clear of WX center cleared us to descend to FL230. I feel certain we were cleared to deviate and to climb to FL330 to avoid the thunderstorms.

Original NASA ASRS Text

Title: AN ACR FLC ACCEPTS A CLB CLRNC AND IS LATER TOLD THAT IT WAS NOT FOR THEM IN PROX OF TSTM ACTIVITY 90 MI NW OF FWA, IN.

Narrative: AFTER PASSING GIPPER (GIJ), CLRED DIRECT TO FORT WAYNE (FWA), A 150 DEG HDG, LEVEL AT FL230 WITH A LINE OF NUMEROUS TSTMS BTWN ACFT POS AND FWA. 150 DEG HDG, REQUESTED DEV TO 210 DEG HDG TO AVOID TSTM (WX). CTR CLRED DEV R OFF COURSE AND CLRED CLB TO FL330 (FILED FL370). CAPT TURNED ACFT TO 210 DEG HDG AND INITIATED CLB TO FL330. IN THE CLB (AT FL250) ZAU ASKED OUR ALT. I RESPONDED PASSING FL250 FOR FL330. ZAU SAID, 'NO, YOU WERE NOT CLRED TO FL330,' AND TO, 'STOP AT FL260.' CAPT LEVELED ACFT AT FL260. RADIO COM WAS EXTREMELY BUSY WITH NUMEROUS ACFT ON THE SAME RADIO FREQ. EVERYONE WAS AVOIDING THE SAME TSTMS. AFTER WE WERE CLR OF WX CTR CLRED US TO DSND TO FL230. I FEEL CERTAIN WE WERE CLRED TO DEVIATE AND TO CLB TO FL330 TO AVOID THE TSTMS.

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.