SDR P5CA0801551

Service difficulty report · Sensor · Boeing 74746NF

Difficulty date: March 21, 2008
Submitted: April 3, 2008
Operation: Air carrier
Aircraft: N451PA
Make and model: Boeing 74746NF
Aircraft serial: 30809
Aircraft time: 31,341 hours, 5,318 cycles
Engine: Ge CF680C2*
System (JASC): 7700 · Engine Indicating System
Part: Sensor
Part number: 15EW2
Part serial: EGNH4197
Condition: Malfunctioned
Location: Nr 2 Engine
Stage of operation: CL
How discovered: O
Nature of condition: R, J
Precautionary procedure: A

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

What was found

AIR TURN BACK DUE TO NR 2 ENGINE SURGING N1, N2, EGT PARAMETERS ON TAKEOFF AND CONTINUED THROUGH CLIMB-OUT AND CRUISE, N1 +/- 5%, N2 +/- 5%, EGT +/- 40. TROUBLESHOT AND FOUND A BAD T2.5 SENSOR. REMOVED AND REPLACED SAME. OPERATIONAL CHECK NORMAL DURING ENGINE RUN.

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