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An medium large transport air carrier had an near midair collision with a sailplane. Evasive action could not be taken as there was no time.
| Attributes | |
| ACN | 212831 |
| Time | |
| Date | 199206 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mht |
| State Reference | NH |
| Altitude | msl bound lower : 4000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mht |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent : approach descent other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Sail Plane |
| Flight Phase | cruise other descent other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 185 flight time total : 8376 flight time type : 717 |
| ASRS Report | 212831 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Miss Distance | horizontal : 150 vertical : 100 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On vectors from mht approach for landing on runway 35 mht. Descending below 5000 to cleared altitude of 4000, 250 KTS, 11 DME west of mht VOR, I got brief glimpse of white sailplane with a t-tail at 11 O'clock and slightly low. Went by before I could react or the captain could see it. Reported near-miss to approach control. Sailplane headed about 180 degrees to our heading. Had TCASII on board. Transponder, with encoder, on sailplane would have prevented this.
Original NASA ASRS Text
Title: AN MLG ACR HAD AN NMAC WITH A SAILPLANE. EVASIVE ACTION COULD NOT BE TAKEN AS THERE WAS NO TIME.
Narrative: ON VECTORS FROM MHT APCH FOR LNDG ON RWY 35 MHT. DSNDING BELOW 5000 TO CLRED ALT OF 4000, 250 KTS, 11 DME W OF MHT VOR, I GOT BRIEF GLIMPSE OF WHITE SAILPLANE WITH A T-TAIL AT 11 O'CLOCK AND SLIGHTLY LOW. WENT BY BEFORE I COULD REACT OR THE CAPT COULD SEE IT. RPTED NEAR-MISS TO APCH CTL. SAILPLANE HEADED ABOUT 180 DEGS TO OUR HDG. HAD TCASII ON BOARD. TRANSPONDER, WITH ENCODER, ON SAILPLANE WOULD HAVE PREVENTED THIS.
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.