SDR R61A2018081080851

Service difficulty report · Connector · Emb ERJ170200LR

Difficulty date: August 8, 2018
Submitted: August 10, 2018
Operation: Air carrier
Aircraft: N208JQ
Make and model: Emb ERJ170200LR
Aircraft serial: 17000257
Aircraft time: 22,401 hours, 15,706 cycles
Engine: Ge CF348E5
Engine time: 26,603 hours, 19,873 cycles
System (JASC): 7732 · Engine Vibration Analyzer
Part: Connector
Condition: Dirty
Location: Nr 2 Accerometer
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: E, A

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

What was found

NR 2 ENGINE LP VIBRATION AT 4.0, DURING CRUISE, BUT ONLY FOR 5 SECONDS. THIS HAPPENED SEVERAL TIMES WHILE AT CRUISE. DURING DESCENT, VIBRATION WENT TO 4 WITH DESCENT POWER. AT 8,000 FEET, NR 2 ENGINE LP VIBRATION WHEN TO 4.1 AND PEAKED AT 4.4 BY THE TIME THE ENGINE WAS SHUTDOWN. DECLARED EMERGENCY, LANDED WITHOUT INCIDENT. INSPECTED THE NR 2 ENGINE, DISCOVERED AFT ACCELEROMETER DIRTY. CLEANED THE CONNECTOR PLUG IAW MM 77-00-00.

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