Permanent record

NTSB preliminary report documented a Marine One and airliner loss of separation after the departure site moved

Event date
Category
Government operations and public safety
Posture:
NTSB preliminary report — investigation ongoing

The preliminary report described radio and coordination failures surrounding an August 4 loss of separation between Marine One and a departing passenger jet after presidential helicopter operations moved to the Ellipse during White House construction. No injuries occurred, and the NTSB cautioned that its preliminary information is subject to change.

Dated sources

  1. — National Transportation Safety Board preliminary report OPS26LA063 (Primary preliminary investigation record)
  2. — Associated Press (News reporting)

Correction status

No substantive correction recorded for this version.

Canonical citation

NTSB preliminary report documented a Marine One and airliner loss of separation after the departure site moved. Donaldtrumpler.com. https://donaldtrumpler.com/records/2026-08-27-marine-one-preliminary-report/

Last verified: