SDR ASMF201509004

Service difficulty report · Warning System · Boeing 737800*

Difficulty date: July 25, 2015
Submitted: September 1, 2015
Operation: Air carrier
Aircraft: N950AM
Make and model: Boeing 737800*
Aircraft serial: 35115
Aircraft time: 33,688 hours, 12,948 cycles
Engine: Cfmint CFM567B27B1
System (JASC): 7732 · Engine Vibration Analyzer
Part: Warning System
Condition: False Activation
Location: Cockpit
Part time: 33,956 hours, 13,059 cycles
Stage of operation: CL
How discovered: O
Nature of condition: N
Precautionary procedure: K

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

What was found

CAPTAIN REPORTED THAT DURING CLIMB, THE LT ENG VIBRATION REACHED 4.2 UNITS. PERFORMED FIM 77-31 TASK 801 & FIM 78-01 TASK PROCEDURES, NO DAMAGES WERE FOUND, TESTED CORRECT. AS PRECAUTIONARY ACTION, REPLACED THE VIBRATION MONITOR IAW AMM 77-31-01. TRIM BALANCE WAS PERFORMED IAW AMM 71-00-00, TASK 71-00-00-750-803 804, TESTED CORRECT.

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