Service difficulty report · Metering Unit · Airbus A321271N

Difficulty date
August 13, 2018
Submitted
August 14, 2018
Operation
Air carrier
Aircraft
N214HA
Make and model
Airbus A321271N
Aircraft serial
07959
Aircraft time
134 hours, 27 cycles
Engine
PW1133G
Part
Metering Unit
Part number
5315146
Part serial
LSGCAS8372
Condition
Malfunctioned
Location
Nr 1 Engine
Part time
134 hours, 27 cycles
Stage of operation
TX
How discovered
O
Nature of condition
N
Precautionary procedure
D

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

What was found

NR 1 ENGINE OIL CHIP DETECTED DURING ENGINE START, SHUTDOWN THE ENGINE. PERFORMED TSM 79-35-00-810-808-A, EXAMINED THE W03 HARNESS & P10 CONNECTOR ON PHMU & P36 CONNECTOR ON OIL DEBRIS MONITORING SENSOR, NO DEFECTS NOTED. EXAMINED PINS & SOCKETS ON P10 ON THE PHMU SIDE & P36 ON THE ODM SIDE, NO DEFECTS NOTED. PERFORMED RESISTANCE & CONTINUITY CHECKS OF ODM SIGNAL WIRES FROM P10 TO P36, NO DEFECTS NOTED IAW TSM 79-35-00-810-808-A, FIGURE 79-35-00-991-00600-A21, SHEET 1. REMOVED AND REPLACED THE ODM IAW AMM 79-35-21-000-801-A, AND AMM 79-35-21-400-801. LEAK CHECKED OK IAW TEST 3, AMM 71-00-00-720-811-A. DURING TEST 6 PREP, FADEC SYSTEM STATIC TEST, THE NR 1 ENGINE OIL CHIP DETECTOR ECAM REMAINS. PHMU REMOVED AND REPLACED IAW AMM 77-31-01. RAN BOTH ENGINES STABILIZED FOR 5 MINUTES, NO FAULTS OR ECAM MESSAGES NOTED. OK FOR SERVICE.

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