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An L1011 encounters a WX balloon in cruise flight and passes 200 ft directly beneath it on J7, 60 mi northwest of ave, ca.
| Attributes | |
| ACN | 450037 |
| Time | |
| Date | 199909 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : ave.vor |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | other |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | L-1011 Tri-Star All Series |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other other other vortac |
| Flight Phase | cruise : level |
| Route In Use | enroute airway : j7.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 13000 |
| ASRS Report | 450037 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac inflight encounter other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : insufficient time |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 0 vertical : 200 |
| Supplementary | |
| Problem Areas | FAA Environmental Factor |
| Primary Problem | FAA |
Narrative:
Passed directly under WX balloon on J7 sbound. No time to react. Flight anc-lax. No passenger and 10 flight attendants on board. Reported balloon to ZOA.
Original NASA ASRS Text
Title: AN L1011 ENCOUNTERS A WX BALLOON IN CRUISE FLT AND PASSES 200 FT DIRECTLY BENEATH IT ON J7, 60 MI NW OF AVE, CA.
Narrative: PASSED DIRECTLY UNDER WX BALLOON ON J7 SBOUND. NO TIME TO REACT. FLT ANC-LAX. NO PAX AND 10 FLT ATTENDANTS ON BOARD. RPTED BALLOON TO ZOA.
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.