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Part 135 MU2B miscalculates turn and hold position and crosses runway, causing another part 135 aircraft to abort takeoff roll.
| Attributes | |
| ACN | 449196 |
| Time | |
| Date | 199909 |
| Day | Wed |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : mdw.airport |
| State Reference | IL |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air taxi |
| Make Model Name | MU-2B 40 Solitaire |
| Operating Under FAR Part | Part 135 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : mdw.tower |
| Operator | common carrier : air taxi |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 135 |
| Flight Phase | ground : takeoff roll |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : single pilot |
| Qualification | pilot : atp pilot : multi engine pilot : cfi |
| Experience | flight time last 90 days : 145 flight time total : 5800 flight time type : 1900 |
| ASRS Report | 449196 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : ground less severe incursion : runway non adherence : published procedure non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action flight crew : rejected takeoff none taken : detected after the fact |
| Miss Distance | horizontal : 2000 vertical : 0 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Airport ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
As I was taxiing to runway 31C at mdw, I missed my turn and inadvertently crossed runway 31L. Another aircraft was in the process of taking off and had to abort his takeoff roll to avoid me. Contributing factors were my fatigue due to the time of day, the darkness, and tight schedule requirements.
Original NASA ASRS Text
Title: PART 135 MU2B MISCALCULATES TURN AND HOLD POS AND CROSSES RWY, CAUSING ANOTHER PART 135 ACFT TO ABORT TKOF ROLL.
Narrative: AS I WAS TAXIING TO RWY 31C AT MDW, I MISSED MY TURN AND INADVERTENTLY CROSSED RWY 31L. ANOTHER ACFT WAS IN THE PROCESS OF TAKING OFF AND HAD TO ABORT HIS TKOF ROLL TO AVOID ME. CONTRIBUTING FACTORS WERE MY FATIGUE DUE TO THE TIME OF DAY, THE DARKNESS, AND TIGHT SCHEDULE REQUIREMENTS.
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.