Altitude deviation.

Attributes
ACN	145581
Time
Date	199005
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : ord
State Reference	IL
Altitude	msl bound lower : 5000 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ord tower : ord
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : intermediate altitude cruise other 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 : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 8500 flight time type : 150
ASRS Report	145581
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Operational Deviation Pilot Deviation other

Narrative:

Flight was being vectored for departure by ord departure. We leveled at 5000'. Ord departure requested climb from 5000 to 8000'. I read back, 'roger, flight X heavy, departing 5000' for 8000'.' upon level off at 8000', ord requested our altitude. I responded, 'level at 8000'.' ord then stated that we had not been cleared to climb. The captain and F/east both heard the 8000' climb clearance and my readback. The controller then said, 'now climb to 13000' and change to frequency.' that was the end of the incident.

Original NASA ASRS Text

Title: ALT DEVIATION.

Narrative: FLT WAS BEING VECTORED FOR DEP BY ORD DEP. WE LEVELED AT 5000'. ORD DEP REQUESTED CLB FROM 5000 TO 8000'. I READ BACK, 'ROGER, FLT X HVY, DEPARTING 5000' FOR 8000'.' UPON LEVEL OFF AT 8000', ORD REQUESTED OUR ALT. I RESPONDED, 'LEVEL AT 8000'.' ORD THEN STATED THAT WE HAD NOT BEEN CLRED TO CLB. THE CAPT AND F/E BOTH HEARD THE 8000' CLB CLRNC AND MY READBACK. THE CTLR THEN SAID, 'NOW CLB TO 13000' AND CHANGE TO FREQ.' THAT WAS THE END OF THE INCIDENT.

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.