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Gls local controller described incident when aircraft entered class D without clearance and conflicted with aircraft cleared for takeoff.
| Attributes | |
| ACN | 714527 |
| Time | |
| Date | 200610 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : gls.airport |
| State Reference | TX |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : personal |
| Make Model Name | Cessna Aircraft Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Flight Plan | None |
| Aircraft 2 | |
| Controlling Facilities | tower : gls.tower |
| Operator | general aviation : personal |
| Make Model Name | M-20 E Super 21 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | ground : takeoff roll |
| Flight Plan | None |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : supervisor controller : flight data controller : ground controller : local |
| Qualification | controller : military |
| Experience | controller military : 4 controller supervisory : 1 controller time certified in position1 : 1 controller time certified in position2 : 1 flight time total : 60 |
| ASRS Report | 714527 |
| Person 2 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Events | |
| Anomaly | conflict : airborne critical non adherence : published procedure non adherence : far |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : took evasive action |
| Miss Distance | vertical : 500 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While I was working local control; ground control; flight data. Aircraft #2 called me ready for takeoff. After scanning the runway and clearing him for takeoff I noticed a cessna (aircraft #1) on short final turn on his landing light. I immediately told aircraft #2 to hold his position; he acknowledged. I then tuned in unicom on our backup radio to attempt contact with the unknown aircraft (aircraft #1). I issued a go around in the blind and told the aircraft to contact me. The (aircraft #1) aircraft successfully contacted me. Aircraft #1 entered class D without 2-WAY communications due to relying on a garmin 1000 that was not up to date. Aircraft #2 was saved due to the specialist detecting and advising the aircraft. The ATC specialist however didn't issue a cancel takeoff clearance instructions to air carrier #2. He held the aircraft in his current position. Then cleared him when conflict was clear.
Original NASA ASRS Text
Title: GLS LCL CTLR DESCRIBED INCIDENT WHEN ACFT ENTERED CLASS D WITHOUT CLRNC AND CONFLICTED WITH ACFT CLRED FOR TKOF.
Narrative: WHILE I WAS WORKING LCL CTL; GND CTL; FLT DATA. ACFT #2 CALLED ME READY FOR TKOF. AFTER SCANNING THE RWY AND CLRING HIM FOR TKOF I NOTICED A CESSNA (ACFT #1) ON SHORT FINAL TURN ON HIS LNDG LIGHT. I IMMEDIATELY TOLD ACFT #2 TO HOLD HIS POS; HE ACKNOWLEDGED. I THEN TUNED IN UNICOM ON OUR BACKUP RADIO TO ATTEMPT CONTACT WITH THE UNKNOWN ACFT (ACFT #1). I ISSUED A GAR IN THE BLIND AND TOLD THE ACFT TO CONTACT ME. THE (ACFT #1) ACFT SUCCESSFULLY CONTACTED ME. ACFT #1 ENTERED CLASS D WITHOUT 2-WAY COMS DUE TO RELYING ON A GARMIN 1000 THAT WAS NOT UP TO DATE. ACFT #2 WAS SAVED DUE TO THE SPECIALIST DETECTING AND ADVISING THE ACFT. THE ATC SPECIALIST HOWEVER DIDN'T ISSUE A CANCEL TKOF CLRNC INSTRUCTIONS TO ACR #2. HE HELD THE ACFT IN HIS CURRENT POS. THEN CLRED HIM WHEN CONFLICT WAS CLR.
Data retrieved from NASA's ASRS site as of January 2009 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.