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Less than standard separation between small aircraft in holding pattern and departing air carrier medium large transport climbing into holding pattern and same altitude.
| Attributes | |
| ACN | 93806 |
| Time | |
| Date | 198809 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sav |
| State Reference | GA |
| Altitude | msl bound lower : 2000 msl bound upper : 2000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sav tower : sav |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : initial cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft |
| Flight Phase | other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| ASRS Report | 93806 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance none taken : insufficient time |
| Consequence | Other |
| Miss Distance | horizontal : 4500 unspecified : 0 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure Operational Error |
Narrative:
I was working local control at sav tower on sun, sept 1988. I had taken a point out on small aircraft Y, holding at mavis for an NDB runway 9, opposite direction approach. Medium large transport X taxied out for departure runway 27. After observing small aircraft Y turn outbnd in the holding pattern at 2000', I cleared medium large transport X for takeoff. Runway heading, climbing to 2000'. After switching medium large transport X to departure, I observed him continuing straight out instead of getting a turn on course. Departure had been busy reading new WX and had not been able to give medium large transport X a turn. When departure saw the potential conflict, he gave medium large transport X an immediate right turn and that was when medium large transport X reported passing small aircraft Y at about three quarters of a mi. I feel that contributing factors were we work local and ground combined, low traffic activity, low ceiling, I was in the middle of being relieved and I was on position for 2 hours and 20 mins.
Original NASA ASRS Text
Title: LESS THAN STANDARD SEPARATION BETWEEN SMA IN HOLDING PATTERN AND DEPARTING ACR MLG CLIMBING INTO HOLDING PATTERN AND SAME ALT.
Narrative: I WAS WORKING LOCAL CTL AT SAV TWR ON SUN, SEPT 1988. I HAD TAKEN A POINT OUT ON SMA Y, HOLDING AT MAVIS FOR AN NDB RWY 9, OPPOSITE DIRECTION APCH. MLG X TAXIED OUT FOR DEP RWY 27. AFTER OBSERVING SMA Y TURN OUTBND IN THE HOLDING PATTERN AT 2000', I CLRED MLG X FOR TKOF. RWY HDG, CLBING TO 2000'. AFTER SWITCHING MLG X TO DEP, I OBSERVED HIM CONTINUING STRAIGHT OUT INSTEAD OF GETTING A TURN ON COURSE. DEP HAD BEEN BUSY READING NEW WX AND HAD NOT BEEN ABLE TO GIVE MLG X A TURN. WHEN DEP SAW THE POTENTIAL CONFLICT, HE GAVE MLG X AN IMMEDIATE RIGHT TURN AND THAT WAS WHEN MLG X RPTED PASSING SMA Y AT ABOUT THREE QUARTERS OF A MI. I FEEL THAT CONTRIBUTING FACTORS WERE WE WORK LOCAL AND GND COMBINED, LOW TFC ACTIVITY, LOW CEILING, I WAS IN THE MIDDLE OF BEING RELIEVED AND I WAS ON POS FOR 2 HRS AND 20 MINS.
Data retrieved from NASA's ASRS site as of August 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.