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Mlt helicopter crossed mid-field over the top of a departure air carrier. Near midair collision filed by air carrier.
| Attributes | |
| ACN | 137403 |
| Time | |
| Date | 199002 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : bwi |
| State Reference | MD |
| Altitude | agl bound lower : 200 agl bound upper : 1200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : bwi |
| Operator | other |
| Make Model Name | Helicopter |
| Flight Phase | cruise other |
| Flight Plan | VFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| ASRS Report | 137403 |
| Person 2 | |
| Affiliation | government : military |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : military |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | faa : investigated |
| Miss Distance | vertical : 900 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
Mlt X, a helicopter, called 10 mi south balance at 1300'. I radar idented mlt X and instructed him to remain west of runway 15R for departure traffic, and to report 1 1/2 mi south. Mlt X was told to plan mid-field crossing. Mlt X reported 1/2 mi south, was issued departure traffic, an medium large transport on runway 15R. I thought pilot had traffic, but tapes revealed pilot said, 'looking.' air carrier Y was issued traffic ahead to right helicopter mid-field crossing at 1200' and cleared for takeoff. Air carrier Y acknowledged. Helicopter was still northbound and appeared to be passing behind air carrier Y when he turned eastbound and passed overhead ar Y lifting off. Air carrier Y stated traffic was too close and later filed a near miss.
Original NASA ASRS Text
Title: MLT HELICOPTER CROSSED MID-FIELD OVER THE TOP OF A DEP ACR. NMAC FILED BY ACR.
Narrative: MLT X, A HELI, CALLED 10 MI S BAL AT 1300'. I RADAR IDENTED MLT X AND INSTRUCTED HIM TO REMAIN W OF RWY 15R FOR DEP TFC, AND TO RPT 1 1/2 MI S. MLT X WAS TOLD TO PLAN MID-FIELD XING. MLT X RPTED 1/2 MI S, WAS ISSUED DEP TFC, AN MLG ON RWY 15R. I THOUGHT PLT HAD TFC, BUT TAPES REVEALED PLT SAID, 'LOOKING.' ACR Y WAS ISSUED TFC AHEAD TO RIGHT HELI MID-FIELD XING AT 1200' AND CLRED FOR TKOF. ACR Y ACKNOWLEDGED. HELI WAS STILL NBOUND AND APPEARED TO BE PASSING BEHIND ACR Y WHEN HE TURNED EBND AND PASSED OVERHEAD AR Y LIFTING OFF. ACR Y STATED TFC WAS TOO CLOSE AND LATER FILED A NEAR MISS.
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.