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SDR ASAA1158856

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Service difficulty report · Engine · Boeing 737890

FAA SDR system

Difficulty date
January 19, 2011
Submitted
January 26, 2011
Operation
Air carrier
Aircraft
N517AS
Make and model
Boeing 737890
Aircraft serial
35197
Aircraft time
7,618 hours, 2,336 cycles
Engine
Cfmint CFM567B273
Engine time
7,618 hours, 2,336 cycles
System (JASC)
7261 · Turbine Engine Oil System
Part
Engine
Condition
Contaminated
Location
Nr 2
Stage of operation
IN
How discovered
V
Nature of condition
C
Precautionary procedure
K

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

What was found

NR 2 ENG AFT SUMP CHIP DETECTOR HAD A LARGE PIECE OF NON MAGNETIC MATERIAL IN THE SCREEN. RECOVERED MATERIAL SENT TO POWERPLANT ENGINEERING FOR ANALYSIS. RAN NR 2 ENG AT 70 PERCENT N1 FOR 10 MIN & RECOMPLIED WITH TASKCARD 78472040 NO ADDITIONAL MATERIALS RECOVERED PLACED NR 2 ENGINE ON DEFERRAL TO BE RE-INSPECTED EVERY 50-75 HRS UNTIL ANALYSIS RESULTS REF CFMI CHIP DETECTOR & AMM 79-00-00. LAB ANALYSIS HAS IDENTIFIIED THE DEBRIS AS NON MAGNETIC SEAL MATERIAL. INSPECTED NR 2 ENG AFT SUMP CHIP DETECTOR REF AMM 79-00-00. NO DEBRIS FOUND. CLEARED PLT DEFERRAL.