N994Z

Part: STIFFENER — CORRODED (BULKHEAD) · corrosion level 2 · airframe 80,805 hrs · 82,802 cycles

DURING H CHECK, CORROSION WAS FOUND ON THE UPPER SURFACE OF STATION 756 BULKHEAD TEE BETWEEN LONGERONS 29R AND 30. REPAIRED PER EA.

Part: FLOORBEAM — CORRODED (FUSELAGE) · corrosion level 2 · airframe 80,805 hrs · 82,802 cycles

DURING HCK IN ATL, CORROSION WAS FOUND IN THE VERTICLE FLANGE OF THE STATION 200 FLOORBEAM LOWER CAP. THE CORROSION EXTENDED TO THE LEFT OF STATION X=0 ALL THE WAY TO THE END OF THE PART. REPAIRED PER EA 99-190813.

Part: FLEX LINE — LEAKING (RT HYD SYSTEM) · airframe 79,872 hrs · 82,131 cycles

INBOUND TO VPS, THE AIRCRAFT LOST THE HYDRAULIC FLUID FROM THE RIGHT SYSTEM. CREW FOLLOWED COM PROCEDURES AND WAS ABLE TO LAND WITHOUT FURTHER INCIDENT IN VPS. MAINTENANCE FOUND A PREVIOUSLY INSTALLED TEMP FLEX LINE LEAKING. REPLACED THE FLEX LINE WITH TWO NEW TEMP FLEX LINES. ALSO, REPLACED THE ENGINE DRIVEN AND ELECTIRCAL HYDRAULIC PUMPS AND THEIR FILTERS. NO CONTAMINATION WAS FOUND IN ANY RIGHT SYSTEM HYDRAULIC FILTERS. SYSTEM WAS SERVICED AND LEAK CHECK OK. AIRCRAFT RETURNED TO SERVICE.

Part: CONTROLLER — MALFUNCTIONED (CABIN PRESSURE) · airframe 79,820 hrs · 82,089 cycles

AIRCRAFT WAS CRUISING AT FL330 WHEN THE CABIN PRESSURE ANNUNCIATOR LIGHT ILLUMINATED AND CABIN ALTITUDE WAS APPROACHING 10,000 FEET. WING ANTI-ICE AND ENGINE ANTI-ICE WERE BOTH ON AT THE TIME AND TURNING THEM OFF DID NOT HELP TO REGAIN CABIN PRESSURE. CREW DECLARED AN EMERGENCY AND DESCENDED TO 10,000 FEET WHERE THE SYSTEM WAS ABLE TO RECOVER. LANDING AT ATL WAS WITHOUT INCIDENT AND MAINTENANCE REPLACED THE PRESSURE CONTROLLER AND THE PRESSURE AMPLIFIER AFTER CHECKING FOR LEAKS. NO LEAKS WERE FOUND AND MASKS DID NOT DEPLOY. AIRCRAFT RETURNED TO SERVICE.

Part: CONTROLLER — MALFUNCTIONED (CABIN PRESSURE) · airframe 79,820 hrs · 82,089 cycles

AIRCRAFT WAS CRUISING AT FL330 WHEN THE CABIN PRESSURE ANNUNCIATOR LIGHT ILLUMINATED AND CABIN ALTITUDE WAS APPROACHING 10,000 FEET. WING ANTI-ICE AND ENGINE ANTI-ICE WERE BOTH ON AT THE TIME AND TURNING THEM OFF DID NOT HELP TO REGAIN CABIN PRESSURE. CREW DECLARED AN EMERGENCY AND DESCENDED TO 10,000 FEET WHERE THE SYSTEM WAS ABLE TO RECOVER. LANDING AT ATL WAS WITHOUT INCIDENT AND MAINTENANCE REPLACED THE PRESSURE CONTROLLER AND THE PRESSURE AMPLIFIER AFTER CHECKING FOR LEAKS. NO LEAKS WERE FOUND AND MASKS DID NOT DEPLOY. AIRCRAFT RETURNED TO SERVICE.

Part: SLIDE — FAILED (TAILCONE) · airframe 79,692 hrs · 81,990 cycles

GROUND SERVICE AGENT DROPPED THE TAIL CONE WHILE TRYING TO GAIN ENTRY INTO THE AIRCRAFT. THE EVACUATION SLIDE DID NOT DEPLOY WHEN THE TAIL CONE DROPPED. MAINTENANCE REPLACED THE TAIL CONE. DROPPED CHECK TESTED THE TAIL CONE AND SLIDE ASSEMBLY AND THE SLIDE DID DEPLOY ON TEST. AIRCRAFT RETURNED TO SERVICE.

Part: STABILIZER — CRACKED · airframe 79,391 hrs · 81,768 cycles

During overnight in MSP, a crack was found on the verticle stabilizer front spar left lower chord.Repaired per EA 99-187946

Part: POWER SUPPLY — INOPERATIVE (ACCESSORY BAY) · airframe 77,739 hrs · 80,484 cycles

DURING LINE CHECK, FOUND EMERGENCY LIGHTS INOPERATIVE AT CATWALK AND TAIL CONE RELEASE HANDLE. REPLACED SEALED POWER SUPPLY IAW DC-9 WM 33-51-04. OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE.

Part: CONTROLLER — FAILED (CABIN PRESSURE)

DURING CLIMB-OUT FROM PHL, LOSS OF CABIN PRESSURIZATION OCCURRED AT APPROXIMATELY 27,000 FEET. CREW EXECUTED AN EMERGENCY DESCENT TO 10,000 FEET. RED CABIN PRESSURE WARNING LIGHT ILLUMINATED AND CABIN ALTITUDE CLIMBED TO 12,000 FEET. FLIGHT WAS RETURNED TO PHL AND AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE CHECKED FOR VESSEL LEAKS AND NONE WERE FOUND. REPLACED CABIN PRESSURE CONTROLLER AND AMPLIFIER. OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE.

Part: FRAME — WORN (BS 1038)

DURING M CHECK, FOUND WEAR DAMAGE ON THE FORWARD FLANGE OF THE LOWER TEE CAP. THE DAMAGE WAS CAUSED BY A STEEL DOUBLER INSTALLED AT THE EDGE OF THE APU DOOR WHERE IT CONTACTED THE FRAME LOWER TEE CAP FORWARD FLANGE, FS 1038. THE DAMAGE WAS BLENDED OUT. REPAIRED PER EA 99-169206.

Part: PULLEY — DIRTY (LANDING GEAR)

AFTER TAKEOFF, GEAR HANDLE WOULD NOT GO TO UPLATCH POSITION OR DOWN POSITION. CREW UTILIZED EMERGENCY GEAR EXTENSION PROCEDURES AND FLIGHT WAS RETURNED TO DTW. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED LANDING GEAR CONTROL LEVER AND FOUND DEBRIS LODGED AROUND TURNAROUND PULLEY FOR CABLE RUNS 102-104 AT FS 74. REMOVED DEBRIS AND PERFORMED GEAR SWING, OPERATIONAL CHECK NORMAL.

Part: ENGINE — FAILED (LEFT)

DURING CLIMB AT 8,000 FEET, THE LEFT ENGINE FLAMED OUT. AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE LEFT ENGINE, OPERATIONAL CHECK OK.

Part: STRIKER PLATE — OUT OF ADJUST (CARGO DOOR)

DURING CLIMB, AFT CARGO DOOR WARNING LIGHT ILLUMINATED. FLIGHT RETURNED TO MEM AND LANDED WITHOUT INCIDENT. DURING LANDING LIGHT WENT OUT. MAINTENANCE ADJUSTED STRIKER PLATE AT CARGO DOOR, FUNCTIONAL CHECK OK.

Part: TRANSCEIVER — MALFUNCTIONED (RADAR SYSTEM)

WEATHER RADAR SYSTEM FAILED AFTER TAKEOFF. FLIGHT WAS RETURNED TO MEM AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED RADAR TRANSCEIVER, OPERATIONAL CHECK NORMAL.

Part: FRAME — CRACKED (BS 712)

DURING H CHECK, FOUND A CRACK IN FRAME AT LONGERON 18R, FS 712. REPAIRED PER EA 98-113049.

Part: KEELBEAM — CORRODED (BS 734-775)

DURING H CHECK, FOUND CORROSION ON KEEL BEAM WEB BETWEEN FS 734-775. REPAIRED PER EA 98-113059.

Part: FITTING — CORRODED (BS 160)

DURING H-CHECK, FOUND CORROSION ON FLOOR SUPPORT FITTINGS AT FS 160, LBL 15 AND 42. REPLACED FITTINGS PER SRM 53-01, 51-10-2, AND 51-30-2.

Part: SKIN — CORRODED (BS 693)

DURING H CHECK, FOUND CORROSION ON SKIN AT FS 693, LONGERON 30. REPAIRED PER EA 98-113057.

Part: FRAME — CRACKED (BS 207)

DURING H CHECK, FOUND CRACK J ANGLE AT Z FRAME FS 207, LONGERON 5L. REPAIRED PER EA 98-113061.

Part: PT7 LINE — CRACKED (RT ENGINE)

AS TAKEOFF POWER WAS APPLIED, THE RIGHT ENGINE EPR INDICATION WOULD NOT REACH TARGET EPR. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE REPLACED THE RIGHT ENGINE EPR TRANSMITTER, OPERATIONAL CHECK OK.

Part: FUEL HEAT VALVE — FAILED (LT ENGINE)

DURING CLIMB, THE LEFT ENGINE FUEL HEAT LIGHT ILLUMINATED. CREW REDUCED POWER ON THE LEFT ENGINE, RETURNED TO MSP AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE LEFT ENGINE FUEL HEAT VALVE, OPERATIONAL CHECK OK.

Part: SKIN — CORRODED (BS 362-435)

DURING PERIODIC CHECK, FOUND DOUBLER AT FORWARD BAG BIN DOOR JAMB WITH SEVERAL AREAS OF CORROSION FROM FS 362 TO FS 435, INSIDE AND OUTSIDE SKIN AT BOTTOM SIDE OF DOOR OPENING. CUT LOWER SECTION OF DOOR DOUBLER AT FORWARD AND AFT SIDE. INSTALLED REPAIR DOUBLER PER EA 99-111941, L/P 0907623.

Part: RELEASE MECH — MALFUNCTIONED (TAILCONE)

DURING H-CHECK, FOUND THAT EXCESSIVE FORCE WAS REQUIRED TO RELEASE THE TAILCONE. ADJUSTED TAILCONE RELEASE MECHANISM, FUNCTIONAL TEST OK.

Part: BULKHEAD — CRACKED (BS 110)

DURING PERIODIC CHECK, FOUND NOSE WHEEL WELL PRESSURE PANEL CRACKED AT FS 110 AT INBOARD VERTICAL BEAM ON RIGHT SIDE. FABRICATED DOUBLER AND REPAIRED PER EA 99-111924.

Part: RIB — CRACKED (VERT STABILIZER)

DURING PERIODIC CHECK, FOUND MULTIPLE VERTICAL STABILIZER RIBS CRACKED AT AFT ATTACH POINTS. REPAIRED PER EA 99-111928.

Part: SLIDE — LOW BATTERY (SERVICE DOOR)

DURING PERIODIC CHECK, FORWARD SERVICE DOOR EVACUATION SLIDE FAILED BATTERY TEST. REPLACED SLIDE.

Part: BATTERY PACK — DISCHARGED (RT NACELLE)

DURING PERIODIC CHECK, THE RIGHT NACELLE EMERGENCY LIGHT FAILED TEN MINUTE TEST. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL.

Part: POWER SUPPLY — INOPERATIVE (LT NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND LEFT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED POWER SUPPLY, OPERATIONAL CHECK NORMAL.

Part: SKIN — CRACKED (PAX DOOR)

DURING M-CHECK, FOUND A CRACK IN THE FORWARD ENTRY DOOR AFT SIDE AT THE 4TH STOP. REPAIRED SKIN PER EA 99-111030.

Part: FRAME — CRACKED (BS 617)

DURING M-CHECK, FOUND A CRACK IN THE FS 617 FRAME AT THE LEFT SIDE FLOOR BEAM LUG. REPAIRED BEAM (PSE 53.09.015) PER EA 99-11039.

Part: POWER SUPPLIES — INOPERATIVE (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT CABIN OVERHEAD EMERGENCY LIGHTS INOPERATIVE. REPLACED POWER SUPPLIES, OPERATIONAL CHECK NORMAL.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FORWARD CABIN OVERHEAD EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES, OPERATIONAL CHECK NORMAL.

Part: RADAR TR UNIT — MALFUNCTIONED (FWD FUSELAGE)

WEATHER RADAR SYSTEM FAILED AFTER TAKEOFF. FALSE RETURNS WERE BEING PAINTED AND SPOKING WAS ALSO APPARENT. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED RADAR TRANSCEIVER. OPERATIONAL CHECK OK, AIRCRAFT RETURNED TO SERVICE.

Part: FITTING — CRACKED (FS 980)

DURING PERIODIC CHECK, FOUND TWO .5 INCH CRACK IN THE 'SHOVEL' FITTING FS 980 AT LONGERON 30. REPLACED FITTING PER SRM 51-30-0.

Part: CLIPS — OUT OF ADJUST (TAILCONE)

DURING PERIODIC CHECK, FOUND THAT EXCESSIVE FORCE WAS REQUIRED TO REMOVE BOTH THE INTERIOR AND EXTERIOR HANDLES FROM THE CLIPS. ADJUSTED THE INTERIOR AND EXTERIOR CLIPS.

Part: BLKHD WEB — OIL CANNED (LT LAVATORY)

DURING PERIODIC CHECK, FOUND OIL CANNING IN THE LEFT LAVATORY BULKHEAD WEB AT THE INBOARD LIGHTENING HOLE. REPAIRED PER EA 99-096894.