Service difficulty report · Pressure Switch · Boeing 7478F

Difficulty date
November 10, 2022
Submitted
November 11, 2022
Operation
Air carrier
Aircraft
N606UP
Make and model
Boeing 7478F
Aircraft serial
64253
Aircraft time
20,503 hours, 2,996 cycles
Part
Pressure Switch
Condition
Inoperative
Location
Nr 3 Eng Oil Psi
Stage of operation
CR
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

**ATB**ENG 3 OIL SYS STATUS #3 OIL PRESSURE 26 PSI MSG NO 73300 T/S FIM 79-32-00810-817. EEC SHOP FAULT FINDING EEC 3A AND 3B FAULT CODE 423 T/S FIM 73-20-00-810-912. R/R'D NEW ENG 3 OIL PRESS SW AND ENG RUN AND LEAK CHK'D NORMAL PER AMM 79-32-01-401, 71-00-00-501 PART LOAN FROM ATLAS

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