N26932

Part: SCREW — MISINSTALLED (PPC SHAFT)

IN FLIGHT, THE PPC INPUT LEVER TO THE PPC SHAFT CAME OFF AND PREVENTED THE CREW FROM BEING ABLE TO RETARD THE POWER TO THE LT ENGINE. THIS FORCED THEM TO DO AN INFLIGHT SHUTDOWN OF THAT ENGINE. THE INVESTIGATION FOUND THAT THE SCREW AND SPACER THAT SECURES THE ARM TO THE SHAFT WAS NOT INSTALLED. FURTHER INVESTIGATION SHOWED A DISCREPANCY BETWEEN THE MM AND THE IPC MANUAL FOR INSTALLING THESE PARTS IAW TO AC SN. THE OLDER SN AC (BELOW AC664) ARE NOT INSTRUCTED TO INSTALL THEM (71-00-15 (5) (D). ALSO, THE IPC CONTRADICTS ITSELF 76-10-40, FIG 7 CALLS FOR THE INSTALLATION OF THESE PARTS FOR SN 420-683 HOWEVER 76-10-50 LIMITS INSTALLATION OF THESE PARTS TO SN 664-683. (K)

Part: SPACER — MISINSTALLED (PPC SHAFT)

IN FLIGHT, THE PPC INPUT LEVER TO THE PPC SHAFT CAME OFF AND PREVENTED THE CREW FROM BEING ABLE TO RETARD THE POWER TO THE LT ENGINE. THIS FORCED THEM TO DO AN INFLIGHT SHUTDOWN OF THAT ENGINE. THE INVESTIGATION FOUND THAT THE SCREW AND SPACER THAT SECURES THE ARM TO THE SHAFT WAS NOT INSTALLED. FURTHER INVESTIGATION SHOWED A DISCREPANCY BETWEEN THE MM AND THE IPC MANUAL FOR INSTALLING THESE PARTS IAW TO AC SN. THE OLDER SN AC (BELOW AC664) ARE NOT INSTRUCTED TO INSTALL THEM (71-00-15 (5) (D). ALSO, THE IPC CONTRADICTS ITSELF 76-10-40, FIG 7 CALLS FOR THE INSTALLATION OF THESE PARTS FOR SN 420-683 HOWEVER 76-10-50 LIMITS INSTALLATION OF THESE PARTS TO SN 664-683. (K)

Part: SCREW — MISSING

IN FLIGHT THE PPC INPUT LEVER TO THE PPC SHAFT CAME OFF AND PREVENTED THE CREW FROM BEING ABLE TO RETARD THE POWER TO THE LEFT ENGINE. THIS FORCED THEM TO DO AN IN-FLIGHT SHUTDOWN OF THAT ENGINE. THE INVESTIGATION FOUND THAT THE SCREW AND SPACER THAT SECURES THE ARM TO THE SHAFT WAS NOT INSTALLED. FURTHER INVESTIGATION SHOWED A DISCREPANCY BETWEEN THE MM AND THE IPC MANUAL FOR INSTALLING THESE PARTS ACCORDING TO AIRCRAFT SERIAL NR. THE OLDER SERIAL NR AC BELOW (AC 664) ARE NOT INSTRUCTED TO INSTALL THEM (71-00-15 (5) (D)). ALSO THE IPC CONTRADICTS ITSELF 76-10-40 FIG 7 CALLS FOR THE INSTALLATION OF THESE PARTS FOR SN 420683 HOWEVER 76-10-50 LIMITS INSTALLATION OF THESE PARTS TO SN 664-683.

Part: SPRING — BROKEN (MLG HOOK)

AN INTERRUPTION OF FLIGHT OCCURRED . AIRCRAFT ROLLED OUT AT 0546 AND TOOK OFF AT O552 FOR FLIGHT 602 ON ROUTE WITH 7225 LBS OF CARGO ON BOARD. AFTER A NORMAL TAKEOFF THE CREW SELECTED GEAR UP AND SOON NOTICED THAT THE NOSE GEAR WOULD NOT LOCK IN THE UP POSITION. THE CREW CYCLED THE GEAR SEVERAL TIMES IN LEVEL FLIGHT BUT WAS UNABLE TO LOCK THE NOSE GEAR IN THE UP AND LOCKED POSITION. THE PILOT THEN NOTIFIED THE TOWER THAT HE WAS HAVING LANDING GEAR TROUBLE AND NEEDED TO RETURN TO DEPARTURE. THE AIRCRAFT LANDED SAFELY BACK AT DEPARTURE AT 0605 WHERE FIRE AND RESCUE VEHICLES ESCORTED THE AIRCRAFT BACK TO THE BASE FACILITY AND THE AIRCRAFT SHUTDOWN ENGINES AT 0608. UPON INSPECTION OF THE NOSE GEAR ASSY BY THE MAINT DEPT, IT WAS QUICKLY DISCOVERED THAT A NOSE GEAR UPLOCK SPRING HAD BROKEN INTO 2 PIECES THEREBY RENDERING THE NOSE GEAR UPLOCK MECHANISM INOPERATIVE. NO OTHER DEFECTS OR MALFUNCTIONS WERE NOTED AT THIS TIME AND THE AIRCRAFT WILL REMAIN AT BASE TODAY TO HAVE 2 NEW SPRINGS INSTALLED AND ITS LANDING GEAR RUN THROUGH A COMPLETE SET OF OPERATIONAL CHECKS. (K)

Part: PLENUM — CRACKED (IGNITER AREA)

A CRACK IN THE PLENUM NEAR THE IGNITER BOSS. THE CRACK WAS RIGHT ALONG THE WELD AROUND THE IGNITER BOSS. MOST LIKELY THE IGNITER WAS AT SOME POINT MAY HAVE BEEN OVERTORQUED CAUSING STRESS TO THE PLENUM.

Part: PLENUM — CRACKED (ENGINE) · airframe 27,856 hrs

PLENUM CRACKED AT IGNITER BOSS WELD.

Part: SIDE PANEL — SMOKING (RT COCKKPIT)

SMOKE COMING FROM RIGHT SIDE PANEL. FOUND TO BE REAR MOST RIGHTHAND CIRCUIT BREAKER EDGE LIGHTING DISCONNECTED. PANEL SECURED AND STOWED WIRES. PLACED ON MEL IAW MEL 33-1. MEL CLEARED BY REMOVING, CLEANING, AND REINSTALLING THE SIDE PANEL, OPERATIONAL CHECKS GOOD. NO PARTS REPLACED.

Part: SIDE PANEL — SMOKING (RT COCKPIT)

PDX - SMOKE COMING FROM COCKPIT RIGHTHAND SIDE PANEL. REMOVED, CLEANED AND REINSTALLED SIDE PANEL, OPERATIONAL CHECK GOOD.

Part: ENGINE — BIRD STRIKE (NR 1)

RETURN TO FIELD, BIRD STRIKE AFTER TAKEOFF. NR 1 ENGINE INLET SHOWS EVIDENCE OF INGESTION. INSPECTED AIRCRAFT AND NR 1 ENGINE IAW GARRETT MAINTENANCE MANUAL. NO PARTS REPLACED, OPERATIONAL CHECK GOOD.

Part: LOGIC MODULE — MALFUNCTIONED (COCKPIT)

PDX - BOTH EMERGENCY LIGHTS ILLUMINATE INTERMITTENTLY. REPLACED LOGIC MODULE, NO OTHER DEFECTS NOTED.

Part: LOGIC MODULE — MALFUNCTIONED (COCKPIT)

NR 1 FIRE EXTINGUISHER E LIGHT INTERMITTENTLY ON IN FLIGHT. PLACED ON MEL. AIRCRAFT RETURNED TO SERVICE. MEL CLEARED ON 10/29/97. COULD NOT DUPLICATE ORIGINAL DISCREPANCY. CHECKED RESISTANCE OF CIRCUIT FROM PIN 8 ON CONNECTOR, P4 TO GROUND, NO DEFECTS NOTED. REPLACED LOGIC MODULE AS A PRECAUTION. OPERATIONAL CHECKS GOOD.

Part: EGT COMP — OUT OF ADJUST (NR 1 ENGINE)

BOI - NR 1 ENGINE UNABLE TO MAINTAIN 100 PERCENT POWER. ABORTED TAKEOFF. INSPECTED FOR BLEED LEAKS. COMPLIED WITH MAINTENANCE TASK CARD 3771001 1-3. ADJUSTED NR 1 EGT COMP TO 0. COMPLIED WITH M308. GROUND CHECKS GOOD. NO PARTS REPLACED.

Part: FIRE LOGIC MOD — MALFUNCTION (COCKPIT)

GEG - NR 2 ENGINE E FIRE LIGHT ILLUMINATES INTERMITTENTLY. REPLACED FIRE LOGIC MODULE. OPERATIONAL CHECKS GOOD.

Part: WIRING HARNESS — CHAFED (NR 1 ENGINE)

AT TAKEOFF UPON APPLICATION OF POWER LEVER NR 1 WF DROPPED OFF TO 150 PPH. ABORTED TAKEOFF. INSPECTED AND REPAIRED CHAFED FUEL FLOW TRANSMITTER WIRING HARNESS, OPERATIONAL CHECK GOOD.

Part: PACK — FAILED (NR 1)

CLM - CABIN FILLED WITH SMOKE ON LANDING. AIRCRAFT FERRIED TO PDX FOR REPAIR. NR 1 COOLING TURBINE REPLACED I/A/W MAINTENANCE MANUAL. NR 1 BLEED AIR OPS CHECKED GOOD ON GROUND RUN. AIRCRAFT RETURNED TO SERVICE.

Part: GEAR LIGHT — MALFUNCTIONED (NLG)

NOSE GEAR DOWN AND LOCKED LIGHT DID NOT ILLUMINATE AFTER SELECTING GEAR DOWN. GEAR WAS CYCLED SEVERAL TIMES WITH THE SAME RESULT. ALTERNATE GEAR EXTENSION PERFORMED AND DOWN AND LOCKED LIGHT ILLUMINATED. AIRCRAFT LANDED IN GEG WITHOUT FURTHER PROBLEMS. AIRCRAFT FERRIED EDX FOR REPAIR.

Part: LOGIC MODULE — MALFUNCTIONED (NR 1 ENGINE)

NR 1 ENGINE FIRE WARNING AMBER LIGHT ILLUMINATED INTERMITTENTLY IN CRUISE. FIRE WARNING LOGIC MODULE REPLACED AND SYSTEM OPS CHECKED GOOD.

Part: PACK — SMOKING (RIGHT BLEED)

BOI - SMOKE IN THE CABIN FROM THE RIGHT BLEED WHEN THE ENGINE GOES INTO BETA RANGE. SYSTEM PLACED ON MEL, AND AIRCRAFT WAS RETURNED TO SERVICE.

Part: AC PACK — EXCESS OIL (NR 2)

BOI - WITH THE NR 2 BLEED SELECTED, THERE IS SOME SMOKE IN THE CABIN. INSPECTED THE NR 2 ENG INTAKE, NO OIL NOTED. REMOVED THE DRAIN PLUG ON THE NR 2 COOLING TURBINE AND DRAINED SOME EXCESS OIL. REINSTALLED THE PLUG. OPERATIONAL CHECK OF THE NR 2 BLEED AIR WAS NORMAL,AND AIRCRAFT WAS RETURNED TO SERVICE.