N4434D

ATA 8011

Part: STARTER — UNSERVICEABLE (LT ENGINE) · airframe 11,678 hrs

INSTALLED NEW E-DRIVE STARTER ON THE LT SIDE. HAD MULTIPLE DISCREPANCIES WHERE PILOT NOTED THAT THE STARTER WOULD NOT ENGAGE THE SLIP RING. WHEN A MECHANIC WOULD INVESTIGATE THEY COULD NOT DUPLICATE THE PROBLEM. DURING A DETAILED INSPECTION IT WAS NOTED THAT THE LT ENGINE RING GEAR ON THE SLIP RING WAS SIGNIFICANTLY DAMAGED - RING WAS REPLACED AND WE ATTEMPTED TO CONTINUE TO USE THE STARTER BUT EVENTUALLY HAD TO REPLACE THE PART AS IT DOESN’T SEEM TO MATE CORRECTLY WITH THE GEAR. THE STARTER ITSELF STILL FUNCTIONS STRONGLY - HOWEVER IT SEEMS THE TEETH OF THE STARTER AND RING GEAR DO NOT LINE UP OR MESH CORRECTLY. IN LOOKING AT DOCUMENTATION - WE HAVE CONFIRMED THAT WE ARE USING THE CORRECT PITCH (12/14)RING GEAR (P/N 72566) FOR THIS MODEL STARTER AND IT IS APPROVED FOR USAGE ON THE AIRPLANE IN QUESTION.

ATA 8120

Part: HOUSING — LOOSE (TURBOCHARGER)

WHILE COWLING WAS OFF FOR A LINE SQUAWK THE TECHNICIAN NOTICED EXHAUST STAIN AROUND THE TURBOCHARGER WHICH UPON FURTHER INVESTIGATION REVEALED THE HOUSING TO BE LOOSE. THE SAFETY TABS ON THE BOLTS WERE ALL IN PLACE. THE UNIT WAS REMOVED FROM SERVICE.

ATA 7314

Part: PUMP — LEAKING (FUEL SYSTEM)

DURING INSPECTION, FUEL WAS OBSERVED LEAKING FROM THE SET SCREW THAT HOLDS THE DRIVE SHAFT LOCK NOT IN CHECK IN THE PUMP BODY. THE PUMP WAS REMOVED AND REPLACED. THE LOCK NUT WAS REMOVED FOR INSPECTION AND IT WAS NOTED THAT A BACK UP PACKING BEHIND THE ORING WOULD INSURE THAT FUEL COULD NOT FIND ITS WAY OUT OF THE ORING GROVE AND UP THE OUTER PORTION OF THE LOCK NUT TO THE SET SCREW PORT.

ATA 2211

Part: COMPUTER — UNSERVICEABLE (PITCH CONTROL)

AFTER INITIAL INSTALL AIRCRAFT WAS ON CHECK FLIGHT, IN ALTITUDE HOLD, AIRCRAFT PORPOISES. IT WAS DETERMINED THAT THE PITCH COMPUTER WAS THE CAUSE. UNIT WAS REMOVED FOR ANALYSIS.