SDR SCNA20260916400

Service difficulty report · Engine · Boeing 7378FH

Difficulty date: August 18, 2026
Submitted: September 16, 2026
Operation: Air carrier
Aircraft: N820SY
Make and model: Boeing 7378FH
Aircraft serial: 39951
Aircraft time: 33,717 hours, 11,050 cycles
Engine: Cfmint CFM567B27E
System (JASC): 7200 · Engine (Turbine/Turboprop)
Part: Engine
Condition: Vibration
Location: Nr 1
Stage of operation: CL
How discovered: O
Nature of condition: E
Precautionary procedure: O

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

What was found

NUMBER 1 ENGINE VIBRATION AT 3.9 IN CLIMB AND 3.3 DURING CRUISE. PERFORMED VIBRATION SURVEY TEST 7 IAW AMM 71-00-00-00-700-814-F00, HIGH VIBRATION OF 3.1, PERFORMED TEST 14B AVM FAN BALANCE TRIM, REPEAT VIBRATION SURVEY TEST 7, HIGH VIBRATION OF .5 AT T/O POWER .3 AT OTHER SETTINGS, OK FOR SERVICE. REF AMM TASK 71-00-00-750-803-F00.

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