Service difficulty report · Unknown · Boeing 7379

Difficulty date
October 31, 2023
Submitted
November 2, 2023
Operation
Air carrier
Aircraft
N972AK
Make and model
Boeing 7379
Aircraft serial
43389
Aircraft time
6,512 hours, 1,855 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
Stage of operation
IN
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

GE DIAGNOSTICS REPORTS THE #1 ENGINE IS GENERATING ALERTS FOR PS3 OUT OF RANGE, PS3 PRESSURE DISAGREE FAULT, P3B OUT OF RANGE, P3B PRESSURE DISAGREE FAULT, OR P3B VS PS3 PRESSURE DISAGREE FAULT. (TASK CARD 73-ASA-01)(#PRI 1) CNR # 20231031101ETOPS SIGNIFICANT SYSTEM. GROUNDED - YES. (RESOLVED ON W/O: 1975153 TASKCARD: N/R-00003 ) FOUND CORRELATED FAULTS MAINT MSG 73-43301 "COMPRESSOR DISCHARGE PRESSURE (PS3) SENSOR IS OUT OF RANGE" AND 73-43291 "COMPRESSOR DISCHARGE PRESSURE (PS3) SENSOR CHANNEL-A AND CHANNEL-B SIGNALS DO NOT AGREE" CORRELATED TO SMT "ENG 1 EEC C1". COMPLETED TSR REF. T/C 73-ASA-01. CLEARS TSR SMT CLEARED REF. L/P 60914931 SEAMC NOTIFIED.

More about the Boeing 737-9