 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B737 crew encounters helicopter and takes evasive action to avoid helicopter passing through approach path at bna.
| Attributes | |
| ACN | 428841 |
| Time | |
| Date | 199902 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bna.airport |
| State Reference | TN |
| Altitude | msl single value : 3200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bna.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : bna.tracon |
| Make Model Name | Helicopter |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Route In Use | enroute : direct |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 150 flight time total : 9000 flight time type : 2700 |
| ASRS Report | 428841 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took precautionary avoidance action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 0 vertical : 500 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Flight was approaching bna from northwest. Flight was cleared for a visual approach runway 2L. Captain was conducting the approach. Turning base from a left downwind position, approach control informed the flight that there was VFR helicopter crossing the approach path at 2500 ft MSL. Copilot responded, 'looking, no contact.' with 45 degrees of turn remaining to line up with runway 2L and at 3200 ft MSL, TCASII RA warning occurred, commanding leveloff. Captain leveled off and stopped his turn, rolling wings level. Helicopter passed directly below the aircraft. Estimated distance less than 500 ft. Flight continued approach to an uneventful landing. Postflt, captain telephoned approach control supervisor. Captain was informed that the helicopter was VFR and acknowledged he had our aircraft in sight.
Original NASA ASRS Text
Title: B737 CREW ENCOUNTERS HELI AND TAKES EVASIVE ACTION TO AVOID HELI PASSING THROUGH APCH PATH AT BNA.
Narrative: FLT WAS APCHING BNA FROM NW. FLT WAS CLRED FOR A VISUAL APCH RWY 2L. CAPT WAS CONDUCTING THE APCH. TURNING BASE FROM A L DOWNWIND POS, APCH CTL INFORMED THE FLT THAT THERE WAS VFR HELI XING THE APCH PATH AT 2500 FT MSL. COPLT RESPONDED, 'LOOKING, NO CONTACT.' WITH 45 DEGS OF TURN REMAINING TO LINE UP WITH RWY 2L AND AT 3200 FT MSL, TCASII RA WARNING OCCURRED, COMMANDING LEVELOFF. CAPT LEVELED OFF AND STOPPED HIS TURN, ROLLING WINGS LEVEL. HELI PASSED DIRECTLY BELOW THE ACFT. ESTIMATED DISTANCE LESS THAN 500 FT. FLT CONTINUED APCH TO AN UNEVENTFUL LNDG. POSTFLT, CAPT TELEPHONED APCH CTL SUPVR. CAPT WAS INFORMED THAT THE HELI WAS VFR AND ACKNOWLEDGED HE HAD OUR ACFT IN SIGHT.
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.