SDR EIAA2011039

Service difficulty report · Compressor · Boeing 747212B

Difficulty date: April 25, 2011
Submitted: April 25, 2011
Operation: Air carrier
Aircraft: N486EV
Make and model: Boeing 747212B
Aircraft serial: 20888
Aircraft time: 98,215 hours
Engine: Pwa JT9D7J
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Compressor
Condition: Surges
Location: Nr 1 Engine
Stage of operation: CL
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

DURING CLIMB ENGINE NR 1 HAD ENGINE COMPRESSOR SURGE AT 12,000 19,000 AND AGAIN AT 29,000. OPERATED ENGINE AT IDLE NO FURTHER STALLS, NO EXCEEDENCE OBSERVED. RETURNED TO ANC. REMOVED AND REPLACED NR 1 ENGINE PER EIA W/C F7001, F7202, F7207, F7209 OP'S CHECK GOOD.

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