SDR 99ZZZX1469

Service difficulty report · Metering Valve · Rkwell NA26565

Difficulty date
February 10, 1999
Submitted
March 26, 2000
Operation
General aviation
Filed by
IY2R915K
Lufthansa Technik Engine Services, Inc
Aircraft
N91BZ
Make and model
Rkwell NA26565
Aircraft serial
465019
Engine
Garrtt TFE7313R1D
Part
Metering Valve
Part number
30743202
Condition
Worn
Location
Nr 1 Engine
Component
3070880011
Stage of operation
AP
Nature of condition
X
Precautionary procedure
B, A

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

What was found

MINUTES PRIOR TO MALFUNCTION, NR 2 ENGINE, SN P83141, FAILED. THIS FAILURE REPORTED 1-26-99. DURING SINGLE ENG DESCENT THROUGH 13,000 FEET, CREW RETARDED POWER LEVER OF NR 1 ENG TO FLIGHT IDLE TO INCREASE DESCENT RATE. MOMENTS LATER, NR 1 GENERATOR FAIL LIGHT ILLUMINATED. NR 1 ENG FLAMED OUT. CREW RELIT ENG AND LANDED AT LIT WITHOUT INCIDENT. FUEL CONTROL REMOVED FOR TESTING. TEST REVEALED EXCESSIVE FUEL DROOP CAUSED BY WORN METERING VALVE ASSY. THE DROOP IN FUEL FLOW REDUCED FLOW BELOW MINIMUM AMOUNT OF FUEL REQUIRED TO MAINTAIN ENG OPERATION. METERING VALVE ASSY, PN 3074320-2 REPLACED.