Boeing 777X Brake Tests in Oklahoma Endure Severe Weather During 63‑Day, 117‑Wheel Certification Campaign

Boeing's 777X test team ran a 63-day dry‑runway brake certification campaign in Oklahoma that required 117 wheel/tire changes and encountered severe weather, disrupting brake-performance evaluations and extending ground testing. The trials feed directly into the aircraft's broader certification programme.

Discovered 2025-09-04T09:29:28.472069-07:00 | 2025-09-04T09:29:28.472069-07:00

Briefing

What Hype is tracking

The campaign logged 63 days of dry‑runway brake testing and 117 wheel/tire changes; severe weather interrupted evaluations that are essential to validating braking performance and landing‑run safety.
These ground tests are a component of Boeing's intensified 777X test programme and follow recent FAA progress on certification phases, including the agency's approval of Phase 2D noise testing and a broader push to accelerate the 777X test campaign.
The results tie into ongoing runway‑performance and regulatory steps already seen in recent 777‑9 activity, including the jet's return to Edwards AFB for focused takeoff and runway tests, making these brake trials material to remaining approval milestones.

Reported By

Aviation A2Z Aerospace Testing Intnl Flying Magazine onfirstup.com