Service difficulty report · Controller · Boeing 777223

Difficulty date
June 25, 2021
Submitted
July 9, 2021
Operation
Air carrier
Aircraft
N789AN
Make and model
Boeing 777223
Aircraft serial
30252
Aircraft time
79,837 hours, 10,285 cycles
Part
Controller
Part number
339910041
Part serial
3A92822
Condition
Defective
Location
Pneumatic Sys
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AIRCRAFT WAS GROUNDED: AIR INTERRUPTED BACK TO HNL ON ACCOUNT OF ENGINE BLEED STATUS MESSAGE. FLIGHT WAS NOT OVERWEIGHT FOR LANDING AND NO EMERGENCY DECLARED. LEFT ENGINE BLEED OFF, STARTED WITH STATUS MESSAGE LEFT HIGH PRESSURE SHUT OFF VALVE THEN ENGINE INDICATING AND CREW ALERTING SYSTEM LEFT BLEED OFF. REPLACED LEFT HAND HIGH PRESSURE FAN AIR CONTROLLER.