31 July 2026: FAA Bombardier Global brake AD

FAA finalises Bombardier Global brake control unit AD, effective 3 September

The FAA has finalised a Bombardier Global brake-control-unit airworthiness directive. The rule was published in the Federal Register on 30 July 2026. It takes effect on 3 September 2026.

The AD covers Bombardier Model BD-700-1A10 and BD-700-1A11 aircraft. Between them, these type certificates carry the Global Express, Global Express XRS, Global 5000, Global 5500, Global 6000 and Global 6500 marketing families. The FAA published the underlying notice of proposed rulemaking on 23 April 2026. The final rule adopts the proposal, having responded to comments received.

An in-service main landing gear tyre burst on landing prompted the rule. Investigators found a lost 5-volt supply in the brake control unit wheel control card. Residual current then built in the brake control valve driver circuit. That in turn drove uncommanded brake pressure at touchdown.

The AD orders an inspection for the affected brake control unit and its replacement where found. It also prohibits installing affected parts on any covered aircraft. The corrective action is drawn from Transport Canada AD CF-2022-53. That AD dates to 8 September 2022. The FAA has now made it binding for United States operators. FAA docket FAA-2026-3864 lists the affected serial numbers and the approved service instructions.

For Global operators, 3 September fixes when the rule binds. From that date, inspection, replacement and the parts-installation prohibition all become mandatory under 14 CFR part 39. Owners with maintenance handled through Bombardier Service Centres should confirm scheduling before the effective date.

Source: FAA AD 2026-15409, Federal Register, 30 July 2026; docket FAA-2026-3864.

Also today

FAA orders Pilatus PC-12/47E enhanced engine start procedure

The FAA has issued a new airworthiness directive on Pilatus PC-12/47E turboprops. Published on 30 July 2026, the rule becomes effective on 3 September 2026. It orders a temporary revision to the pilot's operating handbook, adding an enhanced engine start procedure. The rule follows a report of ground engine start in which the aircraft battery voltage dropped and the avionics shut down. The FAA warned that the condition could mask an interstage turbine temperature exceedance during start. Left undetected, the exceedance could reduce turbine blade structural integrity and result in engine failure and loss of thrust. The AD applies to serial numbers 1720 and 2001 through 2999.

Source: FAA AD 2026-15467, Federal Register, 30 July 2026; docket FAA-2026-0015.

Gulfstream G700 reclaims Los Angeles-Farnborough speed record from Global 8000

Gulfstream has reclaimed the Los Angeles to Farnborough city-pair speed record with the G700. The aircraft covered the 4,740-nautical-mile route in 8 hours 27 minutes at an average of Mach 0.91. That trims 19 minutes from the Bombardier Global 8000 mark. The Global 8000 flew the same route in July at a peak of Mach 0.93, in 8 hours 46 minutes. Gulfstream did not disclose whether the flight has been filed with the National Aeronautic Association. The G700's listed maximum operating speed is Mach 0.935. Its high-speed range is 6,650 nautical miles at Mach 0.90.

Source: AVweb, 30 July 2026; Aerotime.