Service difficulty report · Pump · Boeing 7378H4

Difficulty date
June 2, 2022
Submitted
June 6, 2022
Operation
Air carrier
Aircraft
N8303R
Make and model
Boeing 7378H4
Aircraft serial
36681
Aircraft time
33,156 hours, 14,979 cycles
Engine
Cfmint CFM563C1
Part
Pump
Condition
Faulty
Location
#1 Engine
Stage of operation
TO
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING TAKEOFF ROLL; AFTER SELECTING TO/GA; THRUST LEVERS ADVANCED TO 91.8% WHEN 98.7% WAS REQUIRED. NEXT MANUALLY ADVANCED BOTH THRUST LEVERS. #1 ONLY MADE TO 92%. #2 AT 98.7%. #1 THRUST LEVER (CONT) ADVANCED FULL FORWARD. HIGHEST #1 OBSERVED STAYED AT 92%. REJECTED AT 85 KNOTS. / [01] DURING TROUBLESHOOTING FOUND #1 ENGINE FUEL PUMP IMPELLER NOT MOVING;[02] FUEL PUMP PACKAGE REMOVAL AND REPLACEMENT ACCOMPLISHED ON FAULT TTG8Q00CTXDT;[03] FUEL PUMP PACKAGE REMOVAL AND REPLACEMENT ACCOMPLISHED ON FAULT TTG8Q00CTXDT;[04] REPAIRED PER MT 773-11-00-ETOPS<BR>EV# E012392

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