SDR DHLA200074201

Service difficulty report · Switch · Boeing 727225

Difficulty date: June 21, 2000
Submitted: July 11, 2000
Operation: Air carrier
Aircraft: N742DH
Make and model: Boeing 727225
Aircraft serial: 21290
System (JASC): 7930 · Engine Oil Indicating System
Part: Switch
Part number: 98089
Part serial: 0052
Condition: Failed
Location: Nr 3 Engine
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: E, A

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

What was found

FLT 408 ON CLIMB OUT OF CVG, NR 3 OIL LOW PRESS LIGHT CAME ON DIM. ACCOMPLISHED ALTERNATE PROCEDURES. LIGHT REMAINED ON, SHUT DOWN ENGINE, FUEL DUMPED 25,000 LBS. RETURNED TO CVG LANDED NORMALLY. REMOVED AND REPLACE OIL FILTER BYPASS SWITCH IAW BOEING MM 79-32-2, REPLACED LOW OIL PRESS SWITCH IAW 79-33-1 LEAK AND OPERATIONAL CHECK GOOD.