Service difficulty report · Pressure Switch · Boeing 767424ER

Difficulty date
April 27, 2025
Submitted
April 30, 2025
Operation
Air carrier
Aircraft
N77066
Make and model
Boeing 767424ER
Aircraft serial
29461
Aircraft time
90,641 hours, 14,447 cycles
Engine
Ge CF680C2B7F
Part
Pressure Switch
Part number
21SN04466
Part serial
CFL6348BA
Condition
Faulted
Location
Nr 2 Eng Fuel
Part time
16,783 hours, 2,358 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

DEBRIEFED CREW, NO OVWT LANDING, 32K FEET, FUEL FILTER BYPASS R MSG, ENG APPEARED AND SHOWED NORMAL, ALL INDICATIONS NORMAL. 2 HRS OUT. ADVISORY TO STATUS. 304-283-6970. PILOT. REMOVED AND REPLACE #2 ENGINE FUEL FILTER REF AMM 73-11-02-404-008-H00, LEAK CHECK GOOD. OPS CHECK SATISFACTORY. REMOVED & REPLACED FUEL FILTER DIFFERENTIAL PRESSURE SWITCH REF AMM 73-34-01. NO LEAKS FOUND AFTER ENGINE RUN. OPS CHECK GOOD. PERFORMED HIGH POWER RUN ON NBR 2 ENGINE NO MESSAGES APPEARED. ALL ENGINE INDICATIONS NORMAL.