N783TW

Part: BOLT — SHEARED (AFT AIRSTAIRS) · airframe 56,203 hrs · 65,811 cycles

THE ATTACH BOLTS REFERENCE IPC 52-60-04-01 ITEM 105 P/N NAS1203-9 ITEM 110 P/N NAS1103-9 THAT SECURE RETAINER ASSEMBLY (VENTRAL STAIR DOOR BEARING) REFERENCE IPC 52-60-04-01 ITEM 26 P/N 3917209-501 TO ADJACENT STRUCTURE AND AFT STAIR ACTUATING MECHANISIMS SHEARED DURING AFT STAIR OPENING PROCEDURE WHICH CAUSED STRESS CRACKING AND FAILURE OF SURROUNDING SUPPORT STRUCTURES.

Part: CLAMP — LOOSE (DUCT) · airframe 50,619 hrs · 58,495 cycles

DURING CRUISE ALTITUDE 35.0, THE AIRCRAFT STARTED LOSING PRESSURIZATION AND THE CABIN ALTITUDE CLIMBED TO 11.5 K FEET. THE PILOT DECLARED AN EMERGENCY AND DECENDED TO 10K FEET, LANDED WITHOUT INCIDENT. FOUND A DUCT CLAMP LOOSE.

Part: PORTABLE LIGHT — INOPERATIVE (CABIN) · airframe 55,281 hrs · 65,296 cycles

EMERGENCY EXIT LIGHT SYSTEM, PORTABLE EMERGENCY EXIT LIGHT WILL NOT ACTIVATE WHEN SELECTED TO ON. AWAITING DETAILS ON REPAIR.

Part: DEPRESSOR — GOUGED (PAX DOOR) · airframe 55,199 hrs · 65,252 cycles

FORWARD MAIN ENTRY DOOR JAMB UPPER AFT SEAL DEPRESSOR BENT AND GOUGED.

Part: PANEL — CRACKED

1.5 INCH CRACK RT TRAPEZOIDAL PANEL BETWEEN BOLT HOLES COMMON TO THE HORIZONTAL FLANGE OF THE LOWER SUPPORT FITTING.

Part: ACCESS PANEL — CRACKED (LT WING)

1.75" LONG CRACK IN FUEL TANK ACCESS PANEL LANDING ON LT WING UPPER SURFACE AT WING BS XRS 111.

Part: SPAR CAP — CRACKED (RT WING)

CRACK IN RT INBD L/E UPPER SPAR CAP APPROXIMATELY 2" IN LENGTH THROUGH THE 2 MOST INBD UPPER BOLTS.

Part: SKIN — DAMAGED (FUSELAGE) · corrosion level 2 · airframe 53,417 hrs · 63,334 cycles

FUSELAGE WINDOW BELT SKIN REPAIR STATION 422.5, L 11R TO L 15R.

Part: CABIN PRESSURE — MALFUNCTIONED · airframe 53,471 hrs · 64,368 cycles

CLIMBING THROUGH APPROXIMATELY 14,000 FEET OBSERVED NO AIRFLOW COMING FROM THE AIR VENTS, CHECKED THE CABIN ALTITUDE AND IT WAS 9,000 FT AND CLIMBING 1,000 FPM. BEFORE PROCEDURES, CABIN PRESSURE AND MASTER WARNING LIGHTS ILLUMINATED DURING DESCENT THROUGH ABOUT 12,000 FEET. DECLARED AN EMERGENCY. EXECUTED CABIN ALTITUDE WARNING IMMEDIATE ACTION ITEMS FOLLOWED BY COM PROCEDURES. AT AN ALTITUDE OF 9,500 THE CABIN PRESSURE WARNING LIGHT EXTINGUISHED. ACCOMPLISHED ALL CHECKLISTS AND LANDED WITH NO FURTHER ISSUES.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 53,417 hrs · 64,334 cycles

EMERGENCY LIGHTS INOPERATIVE.

Part: SPAR — CRACKED (LT ELEVATOR) · airframe 53,417 hrs · 64,334 cycles

LT ELEVATOR SPAR FORWARD SPAR CRACKED BEYOND LIMITS.

Part: STRUCTURE — CORRODED (VERTICAL STAB) · corrosion level 2 · airframe 53,417 hrs · 64,334 cycles

LEFT VERTICAL STAB HAS CORROSION.

Part: SKIN — CORRODED (BS 942-989) · corrosion level 2 · airframe 53,417 hrs · 64,334 cycles

LT AFT SKIN CORRODED OUT OF LIMITS.

Part: FLOORBOARD — CRACKED (BS 718) · airframe 53,417 hrs · 64,334 cycles

MAIN DECK FLOORBOARD CRACKED SEVERAL PLACES.

Part: TEE FITTING — CORRODED (BS 942 BULKHEAD) · corrosion level 2 · airframe 53,417 hrs · 64,334 cycles

CANTED BULKHEAD LOWER TEE CORRODED.

Part: SKIN — CORRODED (VERTICAL STAB) · corrosion level 2 · airframe 53,417 hrs · 64,334 cycles

RT VERTICAL STABILIZER HAS CORROSION ON EXTERIOR SKIN.

Part: FRAME — CORRODED (BS 976) · corrosion level 3 · airframe 53,417 hrs · 64,334 cycles

CANTED FRAME AT BS 796 LT IS CORRODED OUT OF LIMITS.

Part: FRAME — CORRODED (BS 989) · corrosion level 2 · airframe 53,417 hrs · 64,334 cycles

UPPER AND MID LT CANTED FRAME CORRODED AND FOUND TO BE OUT OF LIMITS AT BS 989.

Part: STRUCTURE — CORRODED · corrosion level 2 · airframe 53,417 hrs · 64,334 cycles

ACFT LT SIDE REAR FUSELAGE, UN-PRESSURIZED AREA AFT OF VENT LOUVERS HAS CORROSION.

Part: SKIN — CORRODED (BS 566) · corrosion level 2 · airframe 53,417 hrs · 64,334 cycles

CORROSION ON OUTER SKIN AT BS 566 BELOW OVERWING EXITS.

Part: SKIN — CRACKED (BS 340) · airframe 53,417 hrs · 64,334 cycles

SKIN CRACKED AT BS 340 BETWEEN L17 - 18R.

Part: DOOR FRAME — CRACKED (ZONE 800) · airframe 53,417 hrs · 64,334 cycles

AFT PRESSURE BULKHEAD DOOR FRAME CRACKED APPROX 12 INCHES FROM BOTTOM FRAME.

Part: WINDOW FRAME — CRACKED (BS 420) · airframe 53,417 hrs · 64,334 cycles

RT NR 11 PASSENGER COMPARTMENT WINDOW CUTOUT HAS CRACK INDICATION LOWER AFT CORNER.

Part: SKIN — CRACKED (BS 256) · airframe 53,417 hrs · 64,334 cycles

FUSELAGE SKIN CRACKED BS256 BETWEEN LONGERONS 4 & 5 LT.

Part: BULKHEAD — CORRODED (ZONE 200) · corrosion level 2 · airframe 53,417 hrs · 64,334 cycles

AFT PRESSURE BULKHEAD EXTERNAL SIDE, SURFACE CORROSION FOUND UNDER ADHESIVE, 9 O`CLOCK POSITION APPROX 1.5' FROM DOOR FRAME LT BULKHEAD.

Part: DOOR FRAME — CRACKED (ZONE 200) · airframe 51,411 hrs · 63,214 cycles

UPPER FUSELAGE PAX CABIN STA Y 441 BETWEEN LONGERON 18 AND 19 LT DOOR FRAME CRACKED.

Part: FRAME — CRACKED (ZONE 200) · airframe 51,411 hrs · 63,214 cycles

UPPER FUSELAGE MAIN CARGO CABIN AT STA Y 446 AT LEVEL LONGERON 18L FRAME WITH CRACK.

Part: FITTING — CRACKED (ZONE 600) · airframe 51,411 hrs · 63,214 cycles

UPPER FUSELAGE PAX CABIN STA 441 BETWEEN LONGERON 18 AND 19 LT FRAME FWD SECTION FITTING CRACKED.

Part: SUPPORT FITTING — CRACKED (B) · airframe 51,411 hrs · 63,214 cycles

MAIN CARGO CABIN SUPPORT FITTING CRACKED AT STA Y 446 BETWEEN LONGERON 18L AND 19L.

Part: SKIN PANEL — CORRODED (TE FLAP) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION RT WING FLAP T/E PANEL NR 3 LOWER SKIN WITH CORROSION.

Part: SKIN — CRACKED (RUDDER) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION EMPENNAGE VERTICAL STABILIZER RUDDER SKIN WITH CRACK AT ZR27.25 RT.

Part: SKIN — SCRATCHED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION UPPER FUSELAGE EXTERIOR FUSELAGE SKIN WITH SCRATCH AT STA Y147.

Part: WEB — CRACKED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

UPPER FUSELAGE CARGO CABIN VERTICAL WEB WITH CRACK AT Y STA 525,+X=58,Z=-1.

Part: ANGLE — CRACKED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE AFT ACCESSORY COMPT LATERAL ANGLE BLENDED AND CRACK AT CANTED STA 965,-X=17.5.

Part: SKIN PANEL — DENTED (TE FLAP) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION RT WING FLAP T/E LOWER PANEL SKIN WITH DENTS AT XS 114 AND XS 94.

Part: SKIN — CRACKED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION UPPER FUSELAGE SKIN WITH CORROSION FROM Y STA 474 AND Y STA 642, BETWEEN LONGERON 16L AND 19L CORRODED.

Part: DOOR FRAME — CORRODED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION MAIN CARGO CABIN DOOR LOWER JAMB BEAM WITH CORROSION AT SEVERAL PLACES BETWEEN Y STA 303 AND Y STA 439.

Part: SHEAR TIE — CORRODED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION UPPER FUSELAGE AFT ACCESSORIES COMPARTMENT BETWEEN LONGERON 1L AND 2L Y STA 908 FRAME, SHEAR TIE WITH CRACK.

Part: ANGLE — CRACKED (BS 962) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE AFT ACCESSORY COMPT LATERAL UPPER ANGLE WITH CRACK AT CANTED STA 962.019,-X=17.5.

Part: ANGLE — CRACKED (TE FLAP) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LT WING FLAP INTERNAL, FLAP FRONT SPAR LOWER ANGLE WITH CORROSION AT XF 72.

Part: FRAME — CRACKED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION UPPER FUSELAGE MAIN CARGO CABIN Y STA 525 BETWEEN LONGERONS 18L AND 19L FUSELAGE FRAME WEB CRACKED.

Part: FRAME — CRACKED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION UPPER FUSELAGE MAIN CARGO CABIN Y STA 544 BETWEEN LONGERONS 18R AND 19R FUSELAGE FRAME WEB CRACKED.

Part: FRAME — CRACKED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION UPPER FUSELAGE CARGO CABIN RT AT Y STA 585,-X59,-Z4 OVER WHEEL WELL FRAME AFT POCKET AREA WITH CRACK.

Part: SKIN — DENTED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE SKIN WITH DENT BETWEEN Y STA 381 AND Y STA 395 BETWEEN LONGERONS 19L AND 21L.

Part: SKIN — CRACKED (RUDDER) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION RUDDER WITH CORROSION SKIN AT LT BETWEEN ZR 94 AND ZR 99.

Part: FRAME — CRACKED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION AFT FUSELAGE SUPPORT CANTED BULKHEAD LOWER FRAME WITH CORROSION AT CANTED STA 964,-X19.

Part: SKIN — CRACKED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE SKIN WITH CORROSION AT PERIPHERY WTBF ATTACHMENT HOLES AREA Y STA 470 TO Y STA 565 BETWEEN LONGERON 23L AND 30L.

Part: PAN — CRACKED (CARGO DOOR) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE AFT CARGO COMPARTMENT DOOR OUTER PAN WITH CRACKS AT AFT SECTION BEAMS NR 1, 2, 3 & 5 LOCATIONS.

Part: PAN — CRACKED (CARGO DOOR) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE AFT CARGO COMPARMENT DOOR OUTER PAN FWD SECTION WITH CRACKS AT BEAM 2 & 3 LOCATION.

Part: STRAP — CORRODED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE UNDER WING FILLET FAIRING STRAPS WITH CORROSION FROM Y STA 642 TO Y STA 718 BETWEEN LONGERONS 18R AND 28R.

Part: PAN — CRACKED (CARGO DOOR) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE FWD CARGO COMPARTMENT DOOR OUTER PAN WITH CRACK AT AFT SECTION BEAM NR 1 LOCATION.

Part: FITTING — CRACKED (BS 604 L20R) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE RT MAIN WHEEL WELL MAIN FRAME CRACKED AT Y STA 604 LONGERON 20R.

Part: SKIN — CRACKED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE AT STA Y 654.5 BETWEEN LONGERON 28R AND 29R SKIN WITH CRACK.

Part: PAN — CRACKED (CARGO DOOR) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE AFT CARGO COMPARTMENT DOOR OUTER PAN REPAIR WITH CRACK AT SECTION BETWEEN BEAMS 1 & 2 LOCATION.

Part: PAN — CRACKED (CARGO DOOR) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE FWD CARGO COMPARMENT DOOR INNER PAN WITH CRACK AT BEAM NR 1 AFT SECTION.

Part: FITTING — CORRODED (ZONE 200) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION MAIN CARGO CABIN DOOR LOWER JAMB BEAM AREA ANGLES WITH CORROSION BETWEEN Y STA 389 AND Y STA 432.

Part: ATTACH FITTING — CRACKED (FUSELAGE) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE FWD CARGO COMPARMENT LEFT TUNNEL FUSELAGE FRAME ATTACHING FITTING CRACKED AT Y STA 446 BETWEEN LONGERONS 18L AND 19L.

Part: FITTING — CRACKED (ZONE 100) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE AFT CARGO COMPARTMENT Y STA 738 BETWEEN LONGERON 29R AND 30 FITTING CRACKED.

Part: SUPPORT FITTING — CRACKED (ZONE 200) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION MAIN CARGO CABIN SUPPORT FITTING CRACKED AT Y STA 446 BETWEEN LONGERON 18L AND 19L.

Part: PAN — CRACKED (CARGO DOOR) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE FWD CARGO COMPARTMENT DOOR INNER PAN WITH CRACK AT BEAM NR 1 FWD SECTION.

Part: FITTING — CRACKED (CARGO BAY) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE AFT CARGO COMPARTMENT Y STA 766 OVER LONGERON 26L FITTING WITH CRACK.

Part: PANEL — CRACKED (ZONE 100) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION LOWER FUSELAGE TRAPEZOIDAL PANEL WITH CRACK FWD SECTION AT Y STA 582 LONGERON 20L.

Part: FLOOR SKIN — CRACKED (CABIN) · airframe 51,411 hrs · 63,214 cycles

DURING INSPECTION CABIN FLOORING SKIN WITH CRACK BETWEEN Y STA 166 AND Y STA 190-X3.

Part: FUEL HEATER — UNCONTROLLABLE (ENGINE) · airframe 51,275 hrs · 63,130 cycles

FUEL HEAT REMAINED ON (UNCONTROLLABLE) DURING FLIGHT. PERFORMED PRECAUTIONARY ENGINE SHUT DOWN. PERFORMED PRECAUTIONARY LANDING.

Part: SHEAR TIE — CRACKED (FUSELAGE) · airframe 50,123 hrs · 62,506 cycles

SHEAR TIE CRACKED BELOW LONGERON 14 LEFT AT FRAME STA 801 REPAIRED SHEAR TIE IAW DWG K050159. (A)

Part: LONGERON — CRACKED (FUSELAGE) · airframe 50,123 hrs · 62,506 cycles

LONGERON 3 LEFT CRACKED AT FRAME TO LONGERON ATTCH POINT STA 930. REMOVED LONGERON SECTION, SPLICED NEW LONGERON IAW DC9 SRM 53-02, FIG 18. (A)

Part: JACKSCREW — CORRODED (HORIZ STAB) · airframe 50,123 hrs · 62,506 cycles

HORZ, STAB JACK SCREW THREADS PITTED/CORRODED. REMOVED AND REPLACED JACK SCREW IAW DC9 MM 27-40-1. (A)