SDR ARWA20060402

Service difficulty report · Compressor · Doug DC1030F

Difficulty date: April 28, 2006
Submitted: May 9, 2006
Operation: Air carrier
Aircraft: N478CT
Make and model: Doug DC1030F
Aircraft serial: 47819
Aircraft time: 82,842 hours, 18,632 cycles
Engine: Ge CF650C2
Engine time: 72,839 hours, 16,592 cycles
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Compressor
Condition: Dirty
Location: Nr 3 Engine
Stage of operation: DE
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

BETWEEN 50 AND 60 PERCENT N1 NR 3 ENGINE HEAVY VIBRATION. REMOVED, CLEANED, LUBRICATED AND RE-INSTALLED FIRST STAGE FAN ROTOR BLADES IN ACCORDANCE WITH DC-10 A/M/M PAGE 811, M/M 72-21-00; RAN NR 3 ENGINE AT IDLE P/P AND MAX. NO EVIDENCE OF VIBRATION AT ANY SETTING IN ACCORDANCE WITH A/M/M 71-00-00 PAGE 501.

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