What was found
NR 1 ENGINE SLOW TO SPOOL DURING TAKEOFF. WHEN SETTING 40% N1, THE NR 1 ENGINE LAGGED 8-10 SECONDS BEHIND THE NR 2 ENGINE. COMPLIED WITH MT 773-11-00, FUEL PUMP PACKAGE REMOVAL AND INSTALLATION, OPS AND LEAK CHECKED GOOD.
- Difficulty date
- June 24, 2020
- Submitted
- June 30, 2020
- Operation
- Air carrier
- Aircraft
- N931WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 36637
- Aircraft time
- 38,635 hours, 23,402 cycles
- Engine
- Cfmint CFM567B243
- System (JASC)
- 7314 · Engine Fuel Pump
- Part
- Pump
- Part number
- 442653
- Part serial
- BECN1866
- Condition
- Stalled
- Location
- Nr 1 Engine
- Stage of operation
- TO
- How discovered
- O
- Nature of condition
- R, J
- Precautionary procedure
- C
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.