 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Developmental controller working local control cleared a B727 for takeoff on runway 5 and then shortly thereafter cleared the C172 for takeoff on runway 36 anticipating that the C172 would beat the B727 to the intersection of the runways. Both aircraft became airborne at midway point of their respective runways, controller gave traffic to both aircraft and the B727 passed below the C172 at the intersection.
| Attributes | |
| ACN | 340350 |
| Time | |
| Date | 199607 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bhm |
| State Reference | AL |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : bhm |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : takeoff |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : developmental |
| ASRS Report | 340350 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac non adherence : published procedure |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | Other |
| Miss Distance | horizontal : 300 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
While working local control position I taxied a C172 into position to hold on runway 36. A B727 called ready to depart on runway 5. I cleared the B727 for takeoff and then cleared the cessna for takeoff, anticipating that the cessna would be through the intersection before the B727. The B727 became airborne midfield as did the cessna. I exchanged traffic between both aircraft and the B727 reported the cessna in sight. The B727 remained low through the intersection to avoid the cessna.
Original NASA ASRS Text
Title: DEVELOPMENTAL CTLR WORKING LCL CTL CLRED A B727 FOR TKOF ON RWY 5 AND THEN SHORTLY THEREAFTER CLRED THE C172 FOR TKOF ON RWY 36 ANTICIPATING THAT THE C172 WOULD BEAT THE B727 TO THE INTXN OF THE RWYS. BOTH ACFT BECAME AIRBORNE AT MIDWAY POINT OF THEIR RESPECTIVE RWYS, CTLR GAVE TFC TO BOTH ACFT AND THE B727 PASSED BELOW THE C172 AT THE INTXN.
Narrative: WHILE WORKING LCL CTL POS I TAXIED A C172 INTO POS TO HOLD ON RWY 36. A B727 CALLED READY TO DEPART ON RWY 5. I CLRED THE B727 FOR TKOF AND THEN CLRED THE CESSNA FOR TKOF, ANTICIPATING THAT THE CESSNA WOULD BE THROUGH THE INTXN BEFORE THE B727. THE B727 BECAME AIRBORNE MIDFIELD AS DID THE CESSNA. I EXCHANGED TFC BTWN BOTH ACFT AND THE B727 RPTED THE CESSNA IN SIGHT. THE B727 REMAINED LOW THROUGH THE INTXN TO AVOID THE CESSNA.
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.