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Runway incursion when the flight crew of a B737-300 starts onto runway 31C after the first officer reads back a clearance that he thought he heard for a position and hold at mdw, il.
| Attributes | |
| ACN | 537936 |
| Time | |
| Date | 200202 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : mdw.airport |
| State Reference | IL |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | ground : holding |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : mdw.tower |
| Operator | Other |
| Make Model Name | Gulfstream Jet Undifferentiated or Other Model |
| Navigation In Use | other |
| Flight Phase | ground : takeoff roll ground : taxi |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 150 flight time total : 6800 flight time type : 1850 |
| ASRS Report | 537936 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 217 flight time total : 15000 flight time type : 12750 |
| ASRS Report | 538270 |
| Events | |
| Anomaly | incursion : runway non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to original clearance |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Environmental Factor Airport ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Everything was normal and by the book as we taxied out to runway 31C. All checklists were completed in a normal manner. We held short of runway 31C awaiting takeoff clearance. I heard what I thought was clearance to hold. I read this clearance back. As we started to taxi, we ran the pre-takeoff 'below the line' checklist. We had just crossed over the hold short line when a gulfstream took the runway from taxiway F in front of us. The captain immediately stopped the aircraft and asked the tower if we had been cleared on to hold. They said no, so we did a 180 degrees and returned to the holding area for runway 31L. No other comments were made by the tower. We departed after receiving clearance for a second time. Supplemental information from acn 538270: I noticed a gulfstream jet going into position from across the runway. I stopped the aircraft while my first officer tried to call tower with 3 attempts. Tower also cleared the gulfstream for takeoff before answering us.
Original NASA ASRS Text
Title: RWY INCURSION WHEN THE FLC OF A B737-300 STARTS ONTO RWY 31C AFTER THE FO READS BACK A CLRNC THAT HE THOUGHT HE HEARD FOR A POS AND HOLD AT MDW, IL.
Narrative: EVERYTHING WAS NORMAL AND BY THE BOOK AS WE TAXIED OUT TO RWY 31C. ALL CHKLISTS WERE COMPLETED IN A NORMAL MANNER. WE HELD SHORT OF RWY 31C AWAITING TKOF CLRNC. I HEARD WHAT I THOUGHT WAS CLRNC TO HOLD. I READ THIS CLRNC BACK. AS WE STARTED TO TAXI, WE RAN THE PRE-TKOF 'BELOW THE LINE' CHKLIST. WE HAD JUST CROSSED OVER THE HOLD SHORT LINE WHEN A GULFSTREAM TOOK THE RWY FROM TXWY F IN FRONT OF US. THE CAPT IMMEDIATELY STOPPED THE ACFT AND ASKED THE TWR IF WE HAD BEEN CLRED ON TO HOLD. THEY SAID NO, SO WE DID A 180 DEGS AND RETURNED TO THE HOLDING AREA FOR RWY 31L. NO OTHER COMMENTS WERE MADE BY THE TWR. WE DEPARTED AFTER RECEIVING CLRNC FOR A SECOND TIME. SUPPLEMENTAL INFO FROM ACN 538270: I NOTICED A GULFSTREAM JET GOING INTO POS FROM ACROSS THE RWY. I STOPPED THE ACFT WHILE MY FO TRIED TO CALL TWR WITH 3 ATTEMPTS. TWR ALSO CLRED THE GULFSTREAM FOR TKOF BEFORE ANSWERING US.
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.