What was found
NR 1 ENGINE N1 SURGING 1-2%, FUEL FLOW FLUCTUATING WITH ASSOCIATED YAW DURING TAKEOFF AND CLIMB. ALL PARAMETERS NORMAL AFTER REACHING FL180. R & R THE NR 1 ENGINE FUEL METERING UNIT IAW AMM 73-21-04,
- Difficulty date
- March 19, 2026
- Submitted
- March 23, 2026
- Operation
- Air carrier
- Aircraft
- N8794Q
- Make and model
- Boeing 7378
- Aircraft serial
- 67784
- Aircraft time
- 10,447 hours, 5,218 cycles
- Engine
- Cfmint LEAP1B28
- System (JASC)
- 7320 · Fuel Controlling System
- Part
- Metering Unit
- Condition
- Faulted
- Location
- Nr 1 Engine
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- R, J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.