Service difficulty report · O-Ring · Boeing 767322

Difficulty date
September 29, 2017
Submitted
September 29, 2017
Operation
Air carrier
Aircraft
N661UA
Make and model
Boeing 767322
Aircraft serial
27158
Aircraft time
101,063 hours, 15,747 cycles
Engine
Pwa PW4060
Part
O-Ring
Condition
Damaged
Location
Chip Detector
Stage of operation
CR
How discovered
O
Nature of condition
K
Precautionary procedure
A

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

What was found

NR 2 ENGINE LOST OIL QTY & OIL PRESSURE IN FLIGHT. OIL QUANTITY WENT TO ZERO. INSPECTED ALL CHIP DETECTORS, NO DEBRIS. REPLACED THE O-RINGS FOUND AFT CHIP DETECTOR O-RING CUT. REMOVED & INSPECTED MAIN OIL FILTER, NO DEBRIS. INSTALLED NEW FILTER IAW AMM 79-21-05. PERFORMED GRND IDLE LEAK CK TEST 3 AND RAN ENGINE TO 1.27 EPR NUMEROUS TIMES WITH ALL ENGINE PARAMETERS NORMAL.REINSPECTED ENGINE NO OIL LEAKS..