Service difficulty report · Pressure Switch · Boeing 737890

Difficulty date
September 9, 2015
Submitted
September 11, 2015
Operation
Air carrier
Aircraft
N563AS
Make and model
Boeing 737890
Aircraft serial
35180
Aircraft time
34,107 hours, 10,362 cycles
Part
Pressure Switch
Part number
QA07995
Part serial
RZ37480
Condition
Failed
Location
Nr 2 Fuel
Part time
4,736 hours, 1,404 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

ON CLIMB OUT NR 2 FILTER BYPASS ILLUMINATED. ACFT GROUNDED. ACCOMPLISHED FIM TASK 73-05, TASK 801, FUEL FILTER BYPASS LIGHT ON. R & R RT ENGINE FUEL FILTER REF AMM TASK 73-11-02-000-801-FOO. NO CONTAMINATION FOUND. REPLACED FUEL FILTER DIFFERENTIAL PRESSURE SWITCH REF AMM TASK 73-34-01-000-801-F00 AND 73-34-01-400-801-F00. POWER PLANT TEST 71-00-00-700-801-F00, OPS. AND LEAK. CK. GOOD FILTER AND SWITCH AND 73-21-00-700-804-F00. NO EEC FAULTS FOUND. CHECKED ALL HISTORY. OK.