Service difficulty report · Chip Detector · Boeing 7379

Difficulty date
May 9, 2022
Submitted
May 9, 2022
Operation
Air carrier
Aircraft
N926AK
Make and model
Boeing 7379
Aircraft serial
43314
Aircraft time
1,185 hours, 338 cycles
Engine
Cfmint LEAP1B28
Part
Chip Detector
Part number
2529M66P04
Part serial
GRT60236
Condition
Out Of Limits
Location
#2 Engine
Part time
1,185 hours, 338 cycles
Stage of operation
NR
How discovered
O
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

CFM IS REPORTING #2 ENGINE ODMS CHIP COUNT INCREASE OVER CONSECUTIVE FLIGHTS. GROUNDED - YES. PERFORMED TSR STEPS 1-6 ON #2 ENGE FOUND NO DEBRIS IN SCAVENGE SCREENS OR THE ODMS. FOUND DEBRIS ON THE STARTER MAGNETIC CHIP DETECTOR OUT OF LIMTS. REPLACED OIL IN STARTER REF B737-9 AMM 80-11-01 AND DRY MOTORED THE ENGINE FOR 2 CYCLES REF AMM 71-00-00. RECHECKED THE STARTER CHIP DETECTOR FOUND MORE DEBRIS STILL OUT OF LIMITS. REMOVED AND REPLACED #2 ENGINE STARTER REF AMM 80-11-01. OPS CHECK AND LEAK CHECKS GOOD.

More about the Boeing 737-9