Service difficulty report · Sensor · Boeing 7377H4

Difficulty date
April 23, 2021
Submitted
April 27, 2021
Operation
Air carrier
Aircraft
N738CB
Make and model
Boeing 7377H4
Aircraft serial
27870
Aircraft time
74,647 hours, 44,170 cycles
Engine
Cfmint CFM567B242
Part
Sensor
Part number
RP23600
Part serial
YC069170J
Condition
Faulted
Location
Nr 2 Engine
Stage of operation
CL
How discovered
O
Nature of condition
R, J
Precautionary procedure
A

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

What was found

DURING CLIMB PASSING 9000' #2 ENGINE EXPERIENCED A COMPRESSOR STALL (2 LOUD BANGS). ENGINE RECOVERED AT IDLE AND THEN RAN NORMALLY. PASSENGER WITNESSED 2 FIREBALLS EXIT THE #2 ENGINE DURING COMPRESSOR STALL. EEC BITE CODES: 75-20822 T25 SENSOR OUT OF RANGE 75-20802 T25SENSOR SIGNALS DISAGREE / R&R EEC PER MM 73-21-60 MPN 2042M67PO2 S/N LMDR4015. R&R T25 SENSOR PER 73-21-02. MPN RP236-00 S/N EM 398328-5. R&R J10 HARNESS PER MM 73-21-06. MPN 325-043-503-0 S/N N/S. PERFORMED FDR PER MM 71-00-00-200-801-F00 RAR# 96372 T25 RAR# 96370 EEC RAR 93672 P/N OFF/ON RP236-00 SN OFF YC069170-J SN ON EM398328-5 RAR 96370 P/N OFF 0748250CN1852M33P06 P/N ON 2042M67P02 SN OFF LMDN7145 SN ON LMDR4015

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