SDR ASAA2013120196586

Service difficulty report · Engine · Boeing 737890

Difficulty date: December 1, 2013
Submitted: December 3, 2013
Operation: Air carrier
Aircraft: N551AS
Make and model: Boeing 737890
Aircraft serial: 34593
Aircraft time: 30,517 hours, 9,594 cycles
Engine: Cfmint CFM567B27
Engine time: 22,191 hours, 8,017 cycles
System (JASC): 7200 · Engine (Turbine/Turboprop)
Part: Engine
Condition: Oscillates
Location: Nr 2
Stage of operation: CL
How discovered: O
Nature of condition: O
Precautionary procedure: A

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

What was found

PASSING THROUGH FL 200, NR 2 ENGINE OSCILLATIONS IN ALL PARAMETERS NOTED. BEFORE THRUST LEVER COULD BE REDUCED, NR 2, N1 EXCEEDED LIMITS. AFTER THRUST LEVER REDUCED ENGINE RETURNED TO NORMAL OPS/RESPONSE. DUE WINDSHEAR MAX POWER T/O VERY LIGHT TOGW(105K), HIGH DECK ANGLE ON CLIMB, NR 2 TANK FWD LOW PR LT ON. ACFT GROUNDED. ACCOMPLISHED OVERSPEED BORESCOPE INSP IAW 71-00-00-800-204-F00 STEP D,1,B. ALL ITEMS COMP. COMPLETED EA 800-73EA-11643. ALL OPS NORMAL, ACFT OK FOR SERVICE.