{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-26-028101","form_type":"8-K","ticker":"UP","cik":"0001819516","company_name":"Wheels Up Experience Inc.","filed_at":"2026-04-29T23:59:59+00:00","discovered_at":"2026-05-14T18:02:32.995362+00:00","generated_at":"2026-05-15T02:22:56.280963+00:00","sec_items":["7.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.65,"calibrated_materiality_score":0.65,"confidence":"high","headline":"Wheels Up retires legacy jet fleets 18 months early; now operates only Phenom 300 and Challenger 300","bullets":["Transitioned legacy Citation X and Hawker 400XP jets out of revenue service 18 months ahead of schedule.","Fleet now exclusively Phenom 300 and Challenger 300 series for programmatic membership offerings.","CEO George Mattson cites higher customer satisfaction ratings from the new fleet.","Legacy member commitments will be fulfilled via safety-vetted third-party partner operators.","Ongoing access to charter solutions and strategic partnership with Delta Air Lines."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-26-028101","json":"https://secwatch.observer/filing/0001628280-26-028101.json","markdown":"https://secwatch.observer/filing/0001628280-26-028101.md","text":"https://secwatch.observer/filing/0001628280-26-028101.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1819516/000162828026028101/0001628280-26-028101-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1819516/000162828026028101/up-20260429.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T02:22:56.280963+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}