MD82 crew had a clearance readback, hearback issue as they taxied into position and hold at ord.

Attributes
ACN	576600
Time
Date	200303
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	agl single value : 0
Environment
Flight Conditions	Marginal
Weather Elements	Fog
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-82
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4600 flight time type : 1600
ASRS Report	576600
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	incursion : runway non adherence : far non adherence : published procedure
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

We were clear to taxi to runway 22L via right turn on taxiway a, A18, and taxiway D expect runway 22L for takeoff from the gate at the company ramp at ord. Once we were on taxiway D we were instructed to change to tower frequency. Tower control gave us the following instructions 'air carrier X go through the runway 27L pad into position and hold.' instead of following taxiway D all the way to runway 22L, I read back, 'into position and hold runway 22L air carrier X.' he corrected me by saying, 'go through the runway 27L pad.' never said hold short of runway 22L. As we were getting close to into position on runway 22L, tower instructed to 'hold position.' in the next 30 seconds we were clear to take off runway 22L. I read back 'clear for takeoff runway 22L air carrier X, and we have a question if you have the time.' he said, 'go ahead air carrier X.' 'sir we were clear to go into position and hold runway 22L before?' he answered, 'no you were told to hold short of runway 22L.' the only part of the clearance that I missed was to read back 'going through the runway 27L pad, which he corrected me when I read back the taxi instructions. The captain and myself never heard to hold short on runway 22L.

Original NASA ASRS Text

Title: MD82 CREW HAD A CLRNC READBACK, HEARBACK ISSUE AS THEY TAXIED INTO POS AND HOLD AT ORD.

Narrative: WE WERE CLR TO TAXI TO RWY 22L VIA R TURN ON TXWY A, A18, AND TXWY D EXPECT RWY 22L FOR TKOF FROM THE GATE AT THE COMPANY RAMP AT ORD. ONCE WE WERE ON TXWY D WE WERE INSTRUCTED TO CHANGE TO TWR FREQ. TWR CTL GAVE US THE FOLLOWING INSTRUCTIONS 'ACR X GO THROUGH THE RWY 27L PAD INTO POS AND HOLD.' INSTEAD OF FOLLOWING TXWY D ALL THE WAY TO RWY 22L, I READ BACK, 'INTO POS AND HOLD RWY 22L ACR X.' HE CORRECTED ME BY SAYING, 'GO THROUGH THE RWY 27L PAD.' NEVER SAID HOLD SHORT OF RWY 22L. AS WE WERE GETTING CLOSE TO INTO POS ON RWY 22L, TWR INSTRUCTED TO 'HOLD POS.' IN THE NEXT 30 SECONDS WE WERE CLR TO TAKE OFF RWY 22L. I READ BACK 'CLR FOR TKOF RWY 22L ACR X, AND WE HAVE A QUESTION IF YOU HAVE THE TIME.' HE SAID, 'GO AHEAD ACR X.' 'SIR WE WERE CLR TO GO INTO POS AND HOLD RWY 22L BEFORE?' HE ANSWERED, 'NO YOU WERE TOLD TO HOLD SHORT OF RWY 22L.' THE ONLY PART OF THE CLRNC THAT I MISSED WAS TO READ BACK 'GOING THROUGH THE RWY 27L PAD, WHICH HE CORRECTED ME WHEN I READ BACK THE TAXI INSTRUCTIONS. THE CAPT AND MYSELF NEVER HEARD TO HOLD SHORT ON RWY 22L.

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.