SHIER AVIATION CORP

BAFFLING THAT SEPARATES THE OIL COOLER AND THE NR 2 CYLINDER, CRACKED AND SEPARATED. IT CAME TO REST ON THE STARTER POSITIVE TERMINAL AND NR 2 CYLINDER ROCKER BOX OIL RETURN LINE, PN 72703. WHEN THE STARTER WAS ENGAGED THE ELECTRICAL CURRENT ARCED THROUGH THE SHEET METAL BAFFLE TO THE OIL RETURN LINE SEVERING THE ALUMINUM TUBING. LOSS OF ENGINE OIL PRESSURE OCCURRED DURING START ACCOMPANIED BY SMOKE. OIL SPILLED TO THE GROUND BELOW THE ACFT.

CLUTCH ACTUATOR MOTOR FAILED. (4TH TIME)

BELTS WERE REPLACED DURING 100HR INSPECTION AFTER 693.3 HOURS TSI. FAN WHEEL WAS BALANCED AND RUNUP WAS NORMAL. FIRST FLIGHT OF APPROXIMATELY 2 HOURS WAS UNEVENTFUL. DURING SECOND FLIGHT PILOT REPORTED CLUTCH LIGHT FLICKERED ON AND OFF SEVERAL TIMES. ON INSPECTION AFTER PRECAUTIONARY LANDING, BELTS WERE FOUND STRETCHED TO THE POINT THAT OVER LIMIT SWITCH DEACTIVATED THE SYSTEM. SYSTEM INSPECTED WITH NO FAULTS FOUND OTHER THAN BELT STRETCH BEYOND LIMITS. NEW BELTS WERE INSTALLED AND ADJUSTED. FAN WHEEL BALANCE CHECKED.

GOVERNOR MOTOR RUNS SLOWLY, TAKING 10-12 SECONDS TO BRING RPM UP TO FLIGHT RPM REPLACEMENT MOTOR INSTALLED, DEFECTIVE UNIT RETURNED TO ROBINSON FOR WARRANTY EXCHANGE OR REPAIR.

PAINT ON FAN WHEEL LOOSE AND FLAKING OFF DUE TO POOR ADHESION, PROBABLY CAUSED BY IMPROPER PREPARATION, ALLOWING PREMATURE CORROSION.

BLADE REMOVED FOR REPAIR OF LEADING EDGE ABRASION STRIP CRACKS. CUSTOMER REQUESTED EXCHANGE BLADE IN ORDER TO RESUME FLIGHTS. EXCHANGE BLADE INSTALLED, REPAIRABLE BLADE RETURNED TO AEC

CLUTCH ACTUATOR MOTOR FAILED FOR THE 2ND TIME. REPLACEMENT MOTOR INSTALLED. FURTHER TOUBLESHOOTING REVEALED SHEAVE ALIGNMENT OUT OF LIMITS CAUSING INFLIGHT ILLUMINATION OF CLUTCH LIGHT. ALIGNMENT CORRECTED AND FLIGHTS CONTINUED NORMALLY. BAD MOTOR RETURNED FOR WARRANTY CREDIT.

MOTOR FAILED TO OPERATE WHEN CALLED ON TO ENGAGE M/R DRIVE BELTS. WOULD NOT OPERATE IN EITHER DIRECTION. MOTOR REPLACED, DEFECTIVE MOTOR RETURNED TOROBINSON FOR WARRANTY CREDIT.

PILOT REPORTED ANTI COLLISION LIGHT INOP. FLASH TUBE FOUND BURNED AND CRACKED. REPLACEMENT TUBE ORDERED AND INSTALLED. OPS CHECKED OK.

THE FIRST CLASS AND FWD SECTION OF COACH HAD EGRESS LIGHTING INOPERATIVE. FOUND POWER FEEDER LEAD LOOSE. RESECURED CONNECTOR. CHECK-C 3-12-98 STL.

STL - ON LT Z14 RADIAL OTBD LOWER HOLE ON THE FORWARD SIDE, A .25 INCH CRACK WAS INDICATED BY EDDY CURRENT IN THE ATTACH ANGLE. REPAIRED PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

STL - THE RT Z34 RADIAL OUTBOARD LOWER HOLE ON FORWARD SIDE SHOWED CRACK INDICATION BY EDDY CURRENT. REPAIRED PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

STL - THE RT Z34 RADIAL WAS CRACKED ON END ABOUT 1 INCH. REPAIRED PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

STL - FOUND UPPER END FITTING ON AFT PRESSURE BULKHEAD RT Z34 RADIAL CRACKED .1250 INCH AT TEE FITTING. REPAIRED PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

STL - FOUND LT Z14 RADIAL OTBD UPPER HOLE ON THE FORWARD SIDE WITH .3750 INCH CRACK INDICATION BY EDDY CURRENT. REMOVED AND REPLACED END CLIP PER SRM 51-30-5, AND ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

STL - THE LT Z24 RADIAL, UPPER INBD HOLE ON THE FORWARD SIDE SHOWED CRACK INDICATION BY EDDY CURRENT. REMOVED AND REPLACED FITTING PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

STL - FOUND BULKHEAD SKIN CRACKED .25 INCH AT LT BULKHEAD AT Z24L, ON OTBD TOP SIDE, SECOND HOLE FORM END. REPAIRED SKIN PER ARA 15189. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

STL - THE UPPER END FITTING ON AFT PRESSURE BULKHEAD LT Z24 RIB WAS CRACKED AT TEE FITTING. REMOVED AND REPLACED END FITTING PER ARA 15188. CHECK-C 3-12-98 STL. (X)

STL - ON THE LT Z34 RADIAL UPPER OTBD HOLE ON THE FORWARD SIDE, A CRACK INDICATION WAS SHOWN BY EDDY CURRENT. REPAIRED PER TWA ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

STL - THE Z48 RADIAL FORMER RT SIDE WAS FOUND CRACKED 1 INCH LONG ON OTBD END. REPAIRED FORMER PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

STL - THE LOWER END FITTING ON AFT PRESSURE BULKHEAD LT Z34 RIB HAD A .3750 INCH CRACK AT TEE FITTING. REPAIRED PER TWA ARA 15188. CHECK-C 3-12-98 STL. (X)

STL - FLT 404 - EMERGENCY EXIT SIGNS AT R1 AND L1 DOORS CAME ON IN FLIGHT. WOULD NOT RESET UNTIL SHORT FINAL. REPLACED FWD EMERGENCY EXIT SIGN BATTERY PACK. (M)

MCI - FLT 588 - DURING FLIGHT, RIGHT ENGINE FIRE WARNING LIGHT FLICKERED. REPLACED THE LOWER FIRE DETECTOR LOOP ASSY. (M)

STL - FLT 218 - AT 14,000 DURING DESCENT INTO STL, FLAPS UNCOMMANDED DEPLOYED TOWARD 10DGR AT 300 KTS, WITHIN 5 SECONDS WERE PLACED TO UP. ACCOMPLISHED CHECKS PER MM 5-51-0 PAGE 609 SECTION D FOUND OK FOR SERVICE. (M)

STL - FLT 619 - DURING PRE-FLIGHT, EMERGENCY LIGHTS AND EGRESS LIGHTS WOULD NOT ILLUMINATE. FOUND SWITCH HAD BEEN LEFT IN THE ON POSITION. REPLACED BATTERY POWER PACKS, MFG PN 5822-2 AND VR4D. EMERGENCY LIGHTS AND EGRESS LIGHT SYSTEM OPERATION CHECKED NORMAL. CHECK C - 5-22-95 - STL. (X)