Service difficulty report · O-Ring · Beech B200

Difficulty date
October 24, 2020
Submitted
October 28, 2020
Operation
Air carrier
Aircraft
N1074G
Make and model
Beech B200
Aircraft serial
BB1534
Aircraft time
6,216 hours, 6,121 cycles
Engine
Pwc PT6A42A
Engine time
6,194 hours, 6,065 cycles
Propeller
Hartzl HCD4N3A
Part
O-Ring
Part number
AS3209009
Part serial
NSN
Condition
Leaking
Location
Flow Divider
Part time
220 hours, 249 cycles
Component
Flow Divider · Lucas
Component part number
3036640C
Stage of operation
CL
How discovered
O
Nature of condition
K, R
Precautionary procedure
A

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

What was found

FAR 135.415 REPORT. PILOT REPORTS "NORMAL DEPARTURE. CLIMBING OUT OF 10000 RIGHT ENGINE TORQUE REDUCED TO 1400 ON IT'S OWN. FUEL FLOW INCREASED TO 450. RETURNED TO PAFA WITH NORMAL LANDING". DURING INSPECTION, MAINTENANCE FOUND EVIDENCE OF RT ENGINE FUEL LEAK AND DETERMINED IT ORIGINATED AT OR AROUND THE FUEL FLOW DIVIDER. REPLACED FLOW DIVIDER AND ASSOCIATED TRANSFER TUBE O-RINGS. LEAK AND OPERATIONS CHECK GOOD. PERFORMED SATISFACTORY OPERATIONAL CHECK FLIGHT.

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