Service difficulty report · Pressure Switch · Doug MD11F

Difficulty date
January 26, 2012
Submitted
January 27, 2012
Operation
Air carrier
Aircraft
N580FE
Make and model
Doug MD11F
Aircraft serial
48471
Aircraft time
64,784 hours, 13,796 cycles
Engine
Pwa PW4462
Engine time
4,589 hours, 1,163 cycles
Part
Pressure Switch
Part number
21SN04353
Part serial
B055596A
Condition
Failed
Location
Engine Oil Sys
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
C

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

What was found

MAX POWER TAKE OFF, NR 2 ENGINE LOW OIL PRESSURE LIGHT ILLUMINATED. OIL PRESSURE INDICATED NORMAL ON GAUGES. ABORT WAS ACCOMPLISHED AT 20 KIAS. LIGHT WENT OUT WHEN POWER MOVED TO IDLE. ALL OIL INDICATIONS REMAINED NORMAL. R & R LOW OIL PRESSURE SWITCH IAW MM 79-33-02-4-1. RAN NR 2 ENG AT HIGH POWER REF JRH AND MM 71-02-03-5-2 & MM 71-02-04-5-2. ALL PARAMETERS OK AND NO LOW OIL PRESSURE ALERT.

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