Service difficulty report · Pressure Switch · Boeing 737824

Difficulty date
July 24, 2026
Submitted
July 27, 2026
Operation
Air carrier
Aircraft
N73251
Make and model
Boeing 737824
Aircraft serial
30582
Aircraft time
78,230 hours, 29,321 cycles
Engine
Cfmint CFM567B262
Part
Pressure Switch
Part number
QA07995
Part serial
5011
Condition
Faulted
Location
Nr 2 Engine
Part time
3,138 hours, 1,489 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

ENG 2 FILTER BYPASS LIGHT ILLUM AT CRUISE ONCE CENTER PUMPS EMPTIED. FOUND INPUT MONITOR FOR NR 2 ENG INDICATING FILTER BYPASS CLOG. IAW FIM 73-05, TASK 801. FILTER DIFFERENTIAL PRESSURE SWITCH MUST BE CHANGED. REPLACED FUEL FILTER CLOGGED DPI SWITCH IAW AMM 73-34-01. PREFORMED ENGINE RUN TEST 7 AND 3A. NO LEAKES AT THIS TIME.