Service difficulty report · Servo · Cessna 172S

Difficulty date
March 16, 2001
Submitted
March 16, 2001
Operation
General aviation
Aircraft
N949SP
Make and model
Cessna 172S
Aircraft serial
172S8145
Aircraft time
774 hours
Engine
Lyc IO360L2A
Engine time
774 hours
Part
Servo
Condition
Malfunctioned
Location
Fuel Flow
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

ENGINE RSA-5AD1 FUEL SERVO WILL NOT MEET SPECIFICATIONS. FUEL FLOW BELOW 1700 RPM IS TOO HIGH. IDLE SPEED AND MIXTURE CAN NOT BE SET TO MFG SPECIFICATIONS WITH SATISFACTORY ENGINE OPERATION. FUEL SERVO REMOVED, SENT FOR REPAIRS. MAJOR REPAIRS ACCOMPLISHED AND SERVO REFLOWED TO PRECISION FLOW SHEET 30075-02 DATED 5 JAN 00. REINSTALLED FUEL SERVO, ADJUSTED IAW MFG SPECIFICATIONS, OPERATIONAL AND FLIGHT CHECKED SATISFACTORY.

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