SDR IPXA2019101047761

Service difficulty report · Control System · Boeing 75724APF

Difficulty date: October 10, 2019
Submitted: October 11, 2019
Operation: Air carrier
Aircraft: N445UP
Make and model: Boeing 75724APF
Aircraft serial: 27390
Aircraft time: 25,321 hours, 16,741 cycles
System (JASC): 7600 · Engine Controls
Part: Control System
Condition: Out Of Adjust
Location: Lt Engine
Stage of operation: TX
How discovered: O
Nature of condition: O
Precautionary procedure: O

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

What was found

AFTER STARTING BOTH ENGINES, THE LEFT ENGINE IDLED 10% HIGHER THAN THE RIGHT. LEFT ENG N1 WS 31.7 %. RIGHT N1 WAS 21.7 %, LEFT ENGINE APPEARED TO BE STUCK IN FLIGHT IDLE. ADJUSTED THE LEFT ENGINE CONTROLS IAW AMM 76-11-00-825, AND T/C 5001, STEPS 61-62. OPS CHECKED NORMAL IAW AMM 71-00-00-715.

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