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Flight crew of DC8 cargo flight has close proximity to glider as they climb out after takeoff. Deviation is necessary to avoid a conflict.
| Attributes | |
| ACN | 371743 |
| Time | |
| Date | 199706 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : mxq airport : ilg |
| State Reference | OH |
| Altitude | msl bound lower : 4000 msl bound upper : 4200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : day |
| Operator | common carrier : air carrier |
| Make Model Name | DC-8 Undifferentiated or Other Model |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Sail Plane |
| Flight Phase | cruise other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : commercial pilot : cfi pilot : instrument |
| Experience | flight time last 90 days : 150 flight time total : 12000 flight time type : 5000 |
| ASRS Report | 371743 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : cfi pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 100 flight time total : 15000 flight time type : 6000 |
| ASRS Report | 371742 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude inflight encounter : weather |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 2800 vertical : 0 |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
On a scheduled IFR flight iln-fat we were required to deviate from our IFR clearance to avoid a glider. ATC reported an intermittent target at our 12 O'clock position. When we spotted a glider at our 12 O'clock position it was maneuvering on our flight path around 4000-4200 ft MSL. We initiated a descending left turn, approximately 30 degrees left and descended from 4200 ft MSL to approximately 3300 ft MSL until passing traffic. After clear of traffic we reintercepted the mxq 305 degree radial and resumed climb to previously cleared altitude of 10000 ft. We did advise day departure of our intended deviation. Suggest encoding xponders for all glider aircraft.
Original NASA ASRS Text
Title: FLC OF DC8 CARGO FLT HAS CLOSE PROX TO GLIDER AS THEY CLB OUT AFTER TKOF. DEV IS NECESSARY TO AVOID A CONFLICT.
Narrative: ON A SCHEDULED IFR FLT ILN-FAT WE WERE REQUIRED TO DEVIATE FROM OUR IFR CLRNC TO AVOID A GLIDER. ATC RPTED AN INTERMITTENT TARGET AT OUR 12 O'CLOCK POS. WHEN WE SPOTTED A GLIDER AT OUR 12 O'CLOCK POS IT WAS MANEUVERING ON OUR FLT PATH AROUND 4000-4200 FT MSL. WE INITIATED A DSNDING L TURN, APPROX 30 DEGS L AND DSNDED FROM 4200 FT MSL TO APPROX 3300 FT MSL UNTIL PASSING TFC. AFTER CLR OF TFC WE REINTERCEPTED THE MXQ 305 DEG RADIAL AND RESUMED CLB TO PREVIOUSLY CLRED ALT OF 10000 FT. WE DID ADVISE DAY DEP OF OUR INTENDED DEV. SUGGEST ENCODING XPONDERS FOR ALL GLIDER ACFT.
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.