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An aircraft taxiing to runway 35 took wrong turn and crossed runway 35 hold bar line. Controller stopped the aircraft as another aircraft was departing runway 35.
| Attributes | |
| ACN | 167037 |
| Time | |
| Date | 199012 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : azo |
| State Reference | MI |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | climbout : takeoff climbout : initial |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller military : 4 controller radar : 10 |
| ASRS Report | 167037 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : ground less severe incursion : runway |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 1500 vertical : 100 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I was working local/ground control combined with cabin supervisor duty. Traffic vol was light (5 aircraft). Sunset occurred at XX12. Medium large transport X requested taxi at XX37. I assigned runway 35 west/O restrictions. I then cleared small aircraft Y for takeoff. Also on frequency: medium large transport Z on ILS runway 35 approach inside of OM, small aircraft a off runway 35 SVFR westbound, and small aircraft B landed runway 35 taxiing to itinerant parking. Medium large transport X should have taxied to runway 35 via txwys C, a, b-south, B-1. Instead medium large transport X taxied via taxiway C, a, then turned left on taxiway G (which is unlit). I noticed medium large transport X on taxiway G and told him immediately to 'stop.' medium large transport acknowledged and stopped short of the edge of runway 35. At this point small aircraft Y was rotating passing taxiway B3. I am convinced that medium large transport X west/O interdiction, would have taxied onto runway 35 while small aircraft Y was departing. The length of taxiway G between runway 35 and taxiway a is approximately 250'. Medium large transport X was past the hold line when stopped. I do not believe the small aircraft Y or medium large transport X would have collided. Small aircraft Y was airborne about 2150' from runway 35 threshold. Medium large transport X was 3650' from runway 35 threshold. A potential problem could have been medium large transport Z receiving a flag on the localizer because of medium large transport X obstructing the signal path.
Original NASA ASRS Text
Title: AN ACFT TAXIING TO RWY 35 TOOK WRONG TURN AND CROSSED RWY 35 HOLD BAR LINE. CTLR STOPPED THE ACFT AS ANOTHER ACFT WAS DEPARTING RWY 35.
Narrative: I WAS WORKING LCL/GND CTL COMBINED WITH CABIN SUPVR DUTY. TFC VOL WAS LIGHT (5 ACFT). SUNSET OCCURRED AT XX12. MLG X REQUESTED TAXI AT XX37. I ASSIGNED RWY 35 W/O RESTRICTIONS. I THEN CLRED SMA Y FOR TKOF. ALSO ON FREQ: MLG Z ON ILS RWY 35 APCH INSIDE OF OM, SMA A OFF RWY 35 SVFR WBND, AND SMA B LANDED RWY 35 TAXIING TO ITINERANT PARKING. MLG X SHOULD HAVE TAXIED TO RWY 35 VIA TXWYS C, A, B-SOUTH, B-1. INSTEAD MLG X TAXIED VIA TXWY C, A, THEN TURNED LEFT ON TXWY G (WHICH IS UNLIT). I NOTICED MLG X ON TXWY G AND TOLD HIM IMMEDIATELY TO 'STOP.' MLG ACKNOWLEDGED AND STOPPED SHORT OF THE EDGE OF RWY 35. AT THIS POINT SMA Y WAS ROTATING PASSING TXWY B3. I AM CONVINCED THAT MLG X W/O INTERDICTION, WOULD HAVE TAXIED ONTO RWY 35 WHILE SMA Y WAS DEPARTING. THE LENGTH OF TXWY G BTWN RWY 35 AND TXWY A IS APPROX 250'. MLG X WAS PAST THE HOLD LINE WHEN STOPPED. I DO NOT BELIEVE THE SMA Y OR MLG X WOULD HAVE COLLIDED. SMA Y WAS AIRBORNE ABOUT 2150' FROM RWY 35 THRESHOLD. MLG X WAS 3650' FROM RWY 35 THRESHOLD. A POTENTIAL PROB COULD HAVE BEEN MLG Z RECEIVING A FLAG ON THE LOC BECAUSE OF MLG X OBSTRUCTING THE SIGNAL PATH.
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.