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There seems to be a lack of clear and concise communication between the tower and the military approach control on traffic information.
| Attributes | |
| ACN | 419920 |
| Time | |
| Date | 199811 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : law |
| State Reference | OK |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | military facility : law tower : law tower : lax |
| Make Model Name | Bonanza 33 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | ground : holding |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Cessna 318 (T-37) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Experience | controller non radar : 22 |
| ASRS Report | 419920 |
| Person 2 | |
| Affiliation | government : military |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure other |
Narrative:
I was working flight data/ground control at law, ok (a VFR tower). Fort sill arac runs the approach control for the area. The arac controller gave several inbounds and overflt traffic calls. His information was confusing so I asked for and received a sequence of all the inbounds and traffic. A bonanza had taxied to runway 17 and was awaiting an IFR departure. All the inbounds and traffic were northbound. The controller at fort sill told us to hold for release on the bonanza. A short time later we were offered a release with visual separation from the arrival on final. That aircraft was already less than 4 mi opposite direction and we did not release the bonanza. After that aircraft passed, fort sill released the bonanza with a wbound heading. Traffic, according to the sequence we had been given, was a T37 passing down our east side on a PAR to fort sill. Just as the local controller was about to issue the takeoff clearance to the bonanza, we received a 4 mi check from a different controller at fort sill. That aircraft, also a T37, was on a surveillance approach to runway 35 at law. We held the bonanza and subsequent departures until we were confident that the sequencing confusion had been corrected. There were supposed to have been 2 other aircraft in front of the T37 on the surveillance approach. If we had departed the bonanza, he would have been opposite direction to a T37 less than 4 mi away and not in communication with law tower.
Original NASA ASRS Text
Title: THERE SEEMS TO BE A LACK OF CLR AND CONCISE COM BTWN THE TWR AND THE MIL APCH CTL ON TFC INFO.
Narrative: I WAS WORKING FLT DATA/GND CTL AT LAW, OK (A VFR TWR). FORT SILL ARAC RUNS THE APCH CTL FOR THE AREA. THE ARAC CTLR GAVE SEVERAL INBOUNDS AND OVERFLT TFC CALLS. HIS INFO WAS CONFUSING SO I ASKED FOR AND RECEIVED A SEQUENCE OF ALL THE INBOUNDS AND TFC. A BONANZA HAD TAXIED TO RWY 17 AND WAS AWAITING AN IFR DEP. ALL THE INBOUNDS AND TFC WERE NBOUND. THE CTLR AT FORT SILL TOLD US TO HOLD FOR RELEASE ON THE BONANZA. A SHORT TIME LATER WE WERE OFFERED A RELEASE WITH VISUAL SEPARATION FROM THE ARR ON FINAL. THAT ACFT WAS ALREADY LESS THAN 4 MI OPPOSITE DIRECTION AND WE DID NOT RELEASE THE BONANZA. AFTER THAT ACFT PASSED, FORT SILL RELEASED THE BONANZA WITH A WBOUND HDG. TFC, ACCORDING TO THE SEQUENCE WE HAD BEEN GIVEN, WAS A T37 PASSING DOWN OUR E SIDE ON A PAR TO FORT SILL. JUST AS THE LCL CTLR WAS ABOUT TO ISSUE THE TKOF CLRNC TO THE BONANZA, WE RECEIVED A 4 MI CHK FROM A DIFFERENT CTLR AT FORT SILL. THAT ACFT, ALSO A T37, WAS ON A SURVEILLANCE APCH TO RWY 35 AT LAW. WE HELD THE BONANZA AND SUBSEQUENT DEPS UNTIL WE WERE CONFIDENT THAT THE SEQUENCING CONFUSION HAD BEEN CORRECTED. THERE WERE SUPPOSED TO HAVE BEEN 2 OTHER ACFT IN FRONT OF THE T37 ON THE SURVEILLANCE APCH. IF WE HAD DEPARTED THE BONANZA, HE WOULD HAVE BEEN OPPOSITE DIRECTION TO A T37 LESS THAN 4 MI AWAY AND NOT IN COM WITH LAW TWR.
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.