Service difficulty report · Pressure Switch · Boeing 737890

Difficulty date
August 29, 2022
Submitted
August 31, 2022
Operation
Air carrier
Aircraft
N535AS
Make and model
Boeing 737890
Aircraft serial
35200
Aircraft time
42,019 hours, 12,029 cycles
Part
Pressure Switch
Part number
QA07995
Part serial
RD115362
Condition
Faulty
Location
#1 Engine
Part time
11,840 hours, 3,261 cycles
Stage of operation
CR
How discovered
V
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

#1 ENGINE FUEL FILTER BY-PASS LIGHT CAME ON DURING CRUISE. NO OTHER ASSOCIATED INDICATIONS NOTED. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH PER B737-800 AMM 73-34-01.