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An air carrier aircraft taxies across runway 18L without clearance. Reporter first officer in another aircraft behind, cites a taxiway sign as being misleading as well as airport construction activity lending to the other flight crew's confusion.
| Attributes | |
| ACN | 425572 |
| Time | |
| Date | 199901 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : tul |
| State Reference | OK |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : pit |
| Operator | common carrier : air carrier |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 120 flight time total : 3000 flight time type : 500 |
| ASRS Report | 425572 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | incursion : runway non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
| Situations | |
| Airport | other physical facility |
Narrative:
Because of construction, parts of taxiway B were closed. Aircraft ahead of us told to 'taxi taxiway H to taxiway B, hold short runway 18L.' we were told to follow that aircraft. Aircraft ahead told to 'turn left on taxiway B, taxi runway 18L.' the intersection is a little confusing because of construction. The aircraft ahead crossed runway 18L (no clearance) and made a left on taxiway east (runway incursion). We made the left at taxiway B and taxied, no incident. Luckily no one was using runway 18L at the time. The aircraft ahead had stopped (short of runway 18L) at intersection hb, facing northeast toward runway 18L, and was told to turn left at taxiway B and taxi runway 18L. From that aircraft's position, looking across the runway, there is a taxiway 'B' sign visible that could have led the crew to believe that 'B' turned left after crossing runway 18L when in fact it is 'east', and 'B' continues straight across. The crew thought they were to cross, then turn left. Solution: 1) better signage in and around that intersection. 2) better ATC communication.
Original NASA ASRS Text
Title: AN ACR ACFT TAXIES ACROSS RWY 18L WITHOUT CLRNC. RPTR FO IN ANOTHER ACFT BEHIND, CITES A TXWY SIGN AS BEING MISLEADING AS WELL AS ARPT CONSTRUCTION ACTIVITY LENDING TO THE OTHER FLC'S CONFUSION.
Narrative: BECAUSE OF CONSTRUCTION, PARTS OF TXWY B WERE CLOSED. ACFT AHEAD OF US TOLD TO 'TAXI TXWY H TO TXWY B, HOLD SHORT RWY 18L.' WE WERE TOLD TO FOLLOW THAT ACFT. ACFT AHEAD TOLD TO 'TURN L ON TXWY B, TAXI RWY 18L.' THE INTXN IS A LITTLE CONFUSING BECAUSE OF CONSTRUCTION. THE ACFT AHEAD CROSSED RWY 18L (NO CLRNC) AND MADE A L ON TXWY E (RWY INCURSION). WE MADE THE L AT TXWY B AND TAXIED, NO INCIDENT. LUCKILY NO ONE WAS USING RWY 18L AT THE TIME. THE ACFT AHEAD HAD STOPPED (SHORT OF RWY 18L) AT INTXN HB, FACING NE TOWARD RWY 18L, AND WAS TOLD TO TURN L AT TXWY B AND TAXI RWY 18L. FROM THAT ACFT'S POS, LOOKING ACROSS THE RWY, THERE IS A TXWY 'B' SIGN VISIBLE THAT COULD HAVE LED THE CREW TO BELIEVE THAT 'B' TURNED L AFTER XING RWY 18L WHEN IN FACT IT IS 'E', AND 'B' CONTINUES STRAIGHT ACROSS. THE CREW THOUGHT THEY WERE TO CROSS, THEN TURN L. SOLUTION: 1) BETTER SIGNAGE IN AND AROUND THAT INTXN. 2) BETTER ATC COM.
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.