SDR DHL2001802015

Service difficulty report · Warning System · Doug DC873

Difficulty date: October 23, 2001
Submitted: October 24, 2001
Operation: Air carrier
Aircraft: N802DH
Make and model: Doug DC873
Aircraft serial: 46076
System (JASC): 7931 · Engine Oil Pressure
Part: Warning System
Condition: Activated
Location: Cockpit
Stage of operation: CR
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

LOST OIL PRESSURE ON NR 4 ENG, PARAMETERS DROPPING. AFTER SHUT DOWN ENG WINDMILLING, W N1 30 - 27 PERCENT, N2 18 PERCENT OIL PRESS APPROX 2 PSI 50 MIN WINDMILLING. PERFORMED TROUBLESHOOTING PROCEDURES PER CFM 71-00-00 FAULT 51. INSPECTED ENGINE INLET AND EXHAUST, INSPECTED FUEL FILTER, SPECIFIC GRAVITY, ALL OIL CHIP DETECTORS. NO DEFECTS NOTED.

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