Service difficulty report · Seal · Boeing 737297

Difficulty date
April 3, 2009
Submitted
April 7, 2009
Operation
Air carrier
Aircraft
N147AW
Make and model
Boeing 737297
Aircraft serial
22630
Aircraft time
57,604 hours, 60,270 cycles
Engine
Pwa JT8D9A
Engine time
57,813 hours, 62,262 cycles
Part
Seal
Condition
Failed
Location
Nr 1 Engine Oil
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
E, O

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

What was found

NR 1 ENGINE OIL QUANTITY DROPPED TO ZERO DURING FLIGHT FOLLOWED BY DROP IN OIL PRESSURE LEADING TO ENGINE SHUT DOWN AND DECLARATION OF AN EMERGENCY. IT WAS DISCOVERED DURING TROUBLE SHOOTING THAT BOTH THE STARTER SEAL AND THE FUEL PUMP SEALS WERE LEAKING. BOTH SEALS WERE REPLACED FOLLOWED BY AN OPERATION CHECK WHERE NO LEAKS WERE NOTED.