SDR 99ZZZX4479

Service difficulty report · Servo · Piper PA34220T

Difficulty date: August 27, 1999
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N4123C
Make and model: Piper PA34220T
Aircraft serial: 3449042
Engine: Cont TSIO360RB
System (JASC): 7322 · Fuel Control/Reciprocating Engines
Part: Servo
Part number: RSA5AD2
Condition: Failed
Location: Fuel Injector
Part time: 930 hours
Component: Precision
Stage of operation: IN
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 RAN RICH, UNABLE TO ADJUST IDLE MIXTURE. REMOVED SERVO FROM ENGINE AND INSPECTED IDLE MIXTURE PLATE FOR GALLING, PLATE WAS FOUND GALLED. SERVO SENT TO PRECISION FOR REPAIR. THIS SERVO HAS 930 HRS TT SINCE NEW. ZERO HRS SINCE PRECISION REPAIRED SERVO AT FACTORY.

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