N578PE

Part: PRBC — BROKEN (NR 3 ENGINE)

THE NR 3 ENGINE EGT HIT REDLINE ON TAKEOFF ROLL. REDUCING EPR TO 1.4 FAILED TO KEEP EGT OUT OF REDLINE. THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND FITTING ON PRBC BROKEN. THE PRBC WAS REPLACED IAW MM 75-31-13. THE ENGINE WAS RUN AND EGT WAS WITHIN LIMITS. A BORESCOPE HOT SECTION INSPECTION WAS PERFORMED AND NO DEFECTS WERE NOTED.

Part: LOCK ACTUATOR — INOPERATIVE (NLG)

THE NOSE GEAR DID NOT EXTEND WHEN GEAR HANDLE WAS SELECTED DOWN ON FINAL APPROACH. THE GEAR WAS CYCLED AND EXTENDED NORMALLY FOR A SAFE LANDING AT IAH. MAINTENANCE FOUND THE NLG LOCK ACTUATOR AT FAULT. THE NLG LOCK ACTUATOR WAS REMOVED AND REPLACED IAW MM 32-33-1. OPERATIONAL AND LEAK CHECKS WERE GOOD.

Part: ACTUATOR — INOPERATIVE (RT MLG DOOR)

THE RT MLG WOULD NOT RETRACT WHEN GEAR HANDLE WAS PLACED IN THE UP POSITION AFTER TAKEOFF. THE SECOND OFFICER'S ANNUNCIATOR PANEL INDICATED THAT THE RIGHT GEAR DOOR WAS DOWN. A VISUAL CHECK CONFIRMED THE GEAR WAS DOWN. THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE RT GEAR DOOR ACTUATOR AT FAULT. THE RT GEAR DOOR ACTUATOR WAS REMOVED AND REPLACED IAW MM 32-32-01. A GEAR RETRACTION WAS PERFORMED AND ALL OPERATION AND INDICATIONS CHECKED GOOD.

Part: HYD LINE — LEAKING (LT MLG DOOR ACT)

THE 'A' SYSTEM HYDRAULIC FLUID WAS LOST WHEN LANDING GEAR WAS RAISED AFTER TAKEOFF FROM MCO. THE AIRCRAFT WAS RETURNED TO MCO WHERE IT LANDED WITHOUT INCIDENT. MX FOUND THE LT MLG DOOR ACTUATOR PRESSURE LINE LEAKING. THE PRESSURE LINE WAS REMOVED AND REPLACED. IN ADDITION, BOTH THE NR 1 AND NR 2 ENGINE DRIVEN HYDRAULIC PUMPS WERE REMOVED AND REPLACED. THE HYDRAULIC SYSTEM WAS SERVICED TO FULL. LEAK CHECKS WERE GOOD. THE LANDING GEAR WAS CYCLED SIX TIMES AND ALL FLIGHT CONTROLS AND NLG STEERING WERE OPERATED WITH NO PROBLEMS FOUND.

Part: ACTUATOR — FAILED (LT MLG DOOR)

THE A-HYDRAULIC SYSTEM QUANTITY WAS LOST WHEN GEAR WAS EXTENDED FOR LANDING ON APPROACH. CHECKLIST PROCEDURES WERE COMPLIED WITH AND THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE LT MLG DOOR RETRACT AND EXTEND ACTUATOR FAILED. THE ACTUATOR WAS REMOVED AND REPLACED IAW MM 32-32-81, LEAK AND OPERATIONAL CHECKS WERE GOOD.

Part: SKIN — CRACKED (LT WING)

INSPECTION FOUND A .5 INCH CRACK IN CUTOUT FOR NR 3 LEADING EDGE SLAT INBOARD TRACK, LT WING. A REPAIR DOUBLER WAS FABRICATED AND INSTALLED IAW SRM 51-30-4.

Part: CONTROL MODULE — INOPERATIVE (ELEVATOR)

THE AIRCRAFT LOST A-SYSTEM HYDRAULIC PRESSURE AND QUANTITY APPROXIMATELY 10 MINUTES AFTER TAKEOFF. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE A-SYSTEM ELEVATOR CONTROL MODULE AT FAULT. THE ELEVATOR CONTROL MODULE WAS REPLACED. THE NR 1 ENGINE DRIVEN PUMP WAS ALSO REPLACED DUE TO FAILURE. LEAK AND OPERATIONAL CHECKS WERE NORMAL.

Part: FRAME — DAMAGED (BS 169.8/211.5)

INSPECTION FOUND IMPACT DAMAGE TO FRAMES AT STA 169.8 AND 211.5, WL 170. THE FRAMES WERE REPAIRED IAW SRM 51-40-4, FIGURE 3.

Part: SKIN — PUNCTURED (BS 196/211.5)

INSPECTION FOUND TWO SMALL HOLES IN FUSELAGE SKIN DUE TO GROUND DAMAGE AT STA 196 AND 211.5, RT SIDE. AN INTERIM REPAIR WAS INSTALLED IAW SRM 53-30-3, FIGURE 1, PAGE 5. A DIP WAS ISSUED TO INSPECT REPAIR EVERY 3,000 FLIGHTS AND TO PERFORM A PERMANENT REPAIR AT NEXT FULL D-CHECK, NOT TO EXCEED 10,000 CYCLES.

Part: SKIN — CRACKED (L-1 DOOR)

INSPECTION FOUND A .50 INCH CRACK IN L-1 DOOR INTERNAL SKIN AT TORQUE BOX CUT OUT. THE CRACKED AREA WAS BLENDED OUT. A DOUBLER WAS FABRICATED AND INSTALLED IAW SRM 52-00-2, SRM 51-10-1, AND SRM 51-20-4. (X)

Part: STRINGER — CORRODED (BS 1000)

INSPECTION FOUND STR 29R CORRODED AT SPLICE AND UNDER LEVELING COMPOUND AT CENTER OF STRINGER IN AFT CARGO BIN BS 1000. THE CORROSION WAS REMOVED IAW SRM 51-10-6. A STRINGER SPLICE AND REPAIR DOUBLER ANGLE WERE FABRICATED AND INSTALLED IAW SRM 51-10-1 AND SRM 51-10-2. (X)

Part: STRINGER — CORRODED (BS 972)

INSPECTION FOUND STR 29L CORRODED AT STA 972 IN AFT PIT. THE CORROSION WAS BLENDED OUT IAW SRM 51-10-6. A REPAIR STRAP WAS FABRICATED AND INSTALLED IAW ECRA 5310-03205. (X)

Part: STRAP — CORRODED (BS 560)

INSPECTION FOUND DOUBLER STRAP CORRODED AROUND C-1 ENTRANCE AT STA 560 ABOVE STR 26R. THE CORROSION WAS REMOVED IAW SRM 51-10-6, A REPAIR DOUBLER WAS FABRICATED AND INSTALLED IAW ECRA 5230-01298 AND SRM 51-30-2. (X)

Part: SUPPORT — CORRODED (BS 640)

INSPECTION FOUND FORWARD CARGO FLOOR SUPPORT STRUCTURE AT STA 640 CENTER SECTION CORRODED. THE CORROSION WAS REMOVED IAW SRM 51-10-6, AN 'L' ANGLE REPAIR WAS FABRICATED AND INSTALLED IAW SRM 51-10-4 AND SRM 53-10-8. (X)

Part: STRINGER — CORRODED (BS 985-994)

INSPECTION FOUND STR 28L CORRODED BETWEEN STA 985 AND STA 994, IN THE AFT PIT. THE CORRODED SECTION WAS REMOVED AND A REPAIR WAS FABRICATED AND INSTALLED IAW SRM 51-30-2 AND MM 51-40-5. (X)

Part: FLOOR BEAM — CORRODED (BS 344)

INSPECTION FOUND CABIN FLOOR BEAM CORRODED FROM LBL 20 TO LBL 60, STA 344. THE CORRODED SECTION OF FLOOR BEAM WAS CUT OUT. REPAIR PARTS WERE FABRICATED, TREATED, AND INSTALLED IAW SRM 53-10-8 AND SRM 53-10-2. (X)

Part: SHEAR TIE — CORRODED (BS 1010)

INSPECTION FOUND SHEAR TIE CORRODED BETWEEN S27R AND S28R AND STA 1010. A SHEAR TIE REPAIR WAS FABRICATED AND INSTALLED IAW SRM 53-10-4, SRM 51-10-2, AND SRM 51-30-2. (X)

Part: STRINGER — CORRODED (BS 1015)

INSPECTION FOUND STR 27L CORRODED IN AFT CARGO COMPARTMENT AT BS 1015. THE CORRODED SECTION OF STRINGER WAS REMOVED IAW SRM 51-30-2. A STRINGER REPAIR AND HAT SECTION WAS FABRICATED AND INSTALLED IAW SRM 53-10-3 AND SRM 51-30-2. (X)

Part: FRAME — CRACKED (BS 640)

INSPECTION FOUND FORWARD CARGO FRAME STA 640 CRACKED AT S29R (.50 INCH), S29L (1.5 INCHES), AND S28L (.25 INCH). A DOUBLER AND FILLER REPAIR WAS FABRICATED AND INSTALLED IAW SRM 51-40-3, SRM 51-30-5, SRM 51-10-2, AND SRM 51-30-2. (X)

Part: FRAME — CORRODED (BS 990)

INSPECTION FOUND UPPER SURFACE OF BELT FRAME LOWER FLANGE IN AFT CARGO BIN CORRODED AT BS 990, LBL 16. THE CORROSION WAS REMOVED IAW SRM 51-10-6. (X)

Part: BULKHEAD FITTING — CORRODED (BS 740)

INSPECTION FOUND CORROSION IN FORWARD CARGO BS 740 BULKHEAD FITTING AT S28L. THE CORROSION WAS CLEANED AND TREATED IAW SRM 51-10-2. L-ANGLE SPLICE WAS FABRICATED AND INSTALLED IAW SRM'S 51-30-2, 53-10-3, 51-10-2, AND 51-20-4. (X)

Part: STRINGER — CORRODED (BS 520-560)

INSPECTION FOUND STR 26R CORRODED AT STA 520 - STA 560. A REPAIR WAS FABRICATED AND INSTALLED IAW SRM 51-40-2, SRM 53-10-1, SRM 51-10-2, SRM 51-30-2, AND SRM 51-40-5. (X)

Part: FRAME — CRACKED (BS 580)

INSPECTION FOUND A .25 INCH CRACK IN FORWARD CARGO FRAME AT STA 580 AND CENTER OF FLOOR STRUCTURE. THE CRACKED AREA WAS CUT OUT. A REPAIR WAS FABRICATED AND INSTALLED IAW SRM 51-10-1, SRM 51-10-2, AND SRM 51-30-2. (X)

Part: SUPPORT — CORRODED (BS 480-560)

INSPECTION FOUND FORWARD CARGO RIGHT FLOOR SUPPORT STRUCTURE CORRODED AT BS 480 - BS 560. A REPAIR PANEL WAS FABRICATED AND INSTALLED IAW SRM 51-40-2, SRM 53-10-1, AND SRM 51-30-2. (X)

Part: SHEAR TIE — CORRODED (FS 990)

INSPECTION FOUND SHEAR TIE CORRODED AT FS 990 BETWEEN STR 28L AND STR 29L. THE CORROSION WAS REMOVED IAW SRM 51-10-6. A REPAIR ANGLE WAS FABRICATED AND INSTALLED IAW SRM'S 53-10-4, 51-10-1, 51-10-2, AND 51-30-2. (X)

Part: STRINGER — CORRODED (BS 1166)

INSPECTION FOUND STRINGER 26R CORRODED AT STA 1166. THE STRINGER WAS REMOVED AND A NEW STRINGER WAS FABRICATED AND INSTALLED IAW SRM 53-10-3. (X)

Part: FRAME — CRACKED (BS 660)

INSPECTION FOUND A .3750 INCH CRACK IN FORWARD CARGO FRAME AT STA 660, STR 28R. A REPAIR DOUBLER AND FILLER WERE FABRICATED AND INSTALLED IAW SRM 53-10-4 AND SRM 51-30-2. (X)

Part: FRAME — CRACKED (BS 600)

INSPECTION FOUND A .25 INCH CRACK IN FORWARD CARGO FRAME AT STA 600 AND CENTER FLOOR STRUCTURE. THE CRACKED SECTION OF FRAME WAS CUT OUT IAW SRM 51-40-3. A REPAIR ANGLE WAS FABRICATED AND INSTALLED IAW SRM 51-10-2 AND SRM 51-30-2. (X)

Part: FRAME — CRACKED (BS 720)

INSPECTION FOUND A 2.5 INCH CRACK IN FORWARD CARGO FRAME AT STA 720, LBL 6. THE CRACKED SECTION OF FRAME WAS CUT OUT. A REPAIR WAS FABRICATED AND INSTALLED IAW SRM 51-40-3, SRM 51-10-1, SRM 51-10-2, AND SRM 51-30-2. (X)

Part: BULKHEAD FITTING — CORRODED (BS 740)

INSPECTION FOUND CORROSION IN FORWARD CARGO BS 740 BULKHEAD CORNER FITTING AT S28R. A NEW STRINGER SECTION AND REPAIR SPLICE WERE INSTALLED IAW SRM 51-30-2, SRM 53-10-3, AND ECRA 5340-01256. (X)

Part: FRAME — CRACKED (BS 660)

INSPECTION FOUND A .25 INCH CRACK IN FORWARD CARGO FRAME AT STA 660, LBL 24. THE CORRODED SECTION OF FRAME WAS CUT OUT. A DOUBLER REPAIR WAS FABRICATED, TREATED, AND INSTALLED IAW SRM 51-40-2, SRM 51-30-1, SRM 51-20-2, AND SRM 51-30-2. (X)

Part: FRAME — CRACKED (BS 680)

INSPECTION FOUND A .25 INCH CRACK IN FORWARD CARGO FRAME AT BS 680, LBL 6. THE CRACKED AREA WAS CUT OUT. A DOUBLER AND FILLER REPAIR WAS FABRICATED, TREATED, AND INSTALLED IAW SRM 51-10-1, SRM 51-10-2, AND SRM 51-30-2. (X)

Part: NOZ GUIDE VANE — SEPARATED (NR 3 ENGINE)

MSY - FLT 1528 - THE NR 3 ENGINE FAILED ON TAKEOFF FROM MSY. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS RETURNED TO MSY WHERE IT LANDED WITHOUT INCIDENT. THE NR 3 ENGINE WAS REMOVED AND REPLACED. THE SDR WILL REMAIN OPEN FOR PART INFORMATION PENDING INVESTIGATION. SUPPLEMENT - INVESTIGATION REVEALED THIS WAS A FIRST STAGE TURBINE FAILURE DUE TO BURN-THROUGH AND SEPARATION OF A FIRST STAGE NOZZLE GUIDE VANE. (X)