Service difficulty report · Chip Detector · Boeing 737890

Difficulty date
March 24, 2011
Submitted
March 29, 2011
Operation
Air carrier
Aircraft
N532AS
Make and model
Boeing 737890
Aircraft serial
36346
Aircraft time
2,739 hours, 893 cycles
Engine
Cfmint CFM567B27
Engine time
2,739 hours, 893 cycles
Part
Chip Detector
Condition
Contaminated
Location
Engine
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

DURING AGB/TGB MAGNETIC CHIP DETECTORS INSP ON NR 2 ENG FOUND FOUR MAGNETIC PARTICLES. TWO PARTICLES LARGER THAN 0.02 INCH IN THE FORWARD SUMP. REF LAB/COR REPORT 11.066 DEBRIS HAS BEEN IDENTIFIED AS 17 4PH STAINLESS STEEL. REF MM SUBTASK 79-00-00-240-001-F00 (7)(N) AND (P) NOT ABLE TO IDENTIFY SOURCE OF 17 4PH IN ABOVE CATEGORIES CONTINUE IN SERVICE WITH 50 75 HOUR REINSPECT. INSPECTED CHIP DETECTORS FOR 30 CONSECUTIVE DAYS. NO DEFECTS FOUND.