COMAC pushes the C929 toward a supplier lock-in it cannot easily reverse

COMAC is working through systems selection on the C929, and the choices being made now will define the aircraft for its service life. Avionics, landing gear, environmental control and flight controls all carry the same tension: Western suppliers offer maturity and certification credibility, domestic suppliers offer independence from export controls.

The C919 answered this by taking Western systems throughout, which delivered a flyable aircraft quickly and left the programme exposed to licensing decisions made elsewhere. The CJ-1000A engine is the visible attempt to close that gap, and the C929 is where the same question arrives across every major system at once.

For suppliers in the emerging markets the interesting consequence is second-tier. A programme building domestic capability at this scale generates component demand that has to be met somewhere, and Chinese primes have shown willingness to qualify suppliers in Southeast Asia and the Gulf when the commercial terms work.

Our read: watch which systems go domestic rather than the headline schedule. That is where the programme reveals whether it is an aircraft or an industrial policy.