N17644

Part: HINGE — CRACKED · airframe 33,372 hrs · 17,625 cycles

UPPER HINGE FASTENER HOLE NR 6 COUNTER SINK CORROSION SQK (N/R) 4230889/4230894, LOWER HINGE BOTTOM HOLE CRACK INDICATION SQK 4230890 AND NR 5 HOLE OVERSIZED TO .194", SQK 4230893 COVERED BY ECRA 5330-04024 REPAIR DOUBLER. REPAIRED IAW ECRA 5330-04024. FINAL ECRA C/W 5330-04024.

Part: ATTACH ANGLE — CRACKED (FUSELAGE) · airframe 28,521 hrs · 15,077 cycles

INTERCOSTAL WEB ATTACH ANGLE IS CRACKED AT STATION 360 S4L. REPAIRED INTERCOSTAL WEB ATTACHMENT AT STATION 360 S4L PER EC/RA 5310-04778 AND PACE EA 644-53-003 CAL.

Part: SKIN — CRACKED (LT WING) · airframe 28,521 hrs · 15,077 cycles

LEFT WING LEADING EDGE SKIN UPPER SURFACE CRACKED AT THE NUMBER 3 SLAT ACTUATOR. REPAIRED CRACK AT LEFT WING LEADING EDGE AT NUMBER 3 SLAT ACTUATOR CUT OUT PER CONTINENTAL EC/RA 5720-02060 AND PACE EA644-57-001 CAL.

Part: FRAME — CRACKED (FUSELAGE) · airframe 28,521 hrs · 15,077 cycles

FRAME AT STATION 360 BELOW S11L, HAS A HOLE IN IT. REPAIRED FRAME AT STATION 360 BELOW S11L PER EC/RA 5310-04780 AND PACE EA644-53-005CAL.

Part: FRAME — CRACKED (FUSELAGE) · airframe 28,521 hrs · 15,077 cycles

LEFT-HAND STATION 360 AT S8L AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACK AT STATION 360 S8L PER EA 5310-04498.

Part: FRAME — CRACKED (BS 400 S8R) · airframe 28,521 hrs · 15,077 cycles

RIGHT-HAND STATION 400 AT S8R AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACKED FRAME RIGHT-HAND STATION 400 S8R PER EA 5310-04498.

Part: FRAME — CRACKED (BS 440 S8R) · airframe 28,521 hrs · 15,077 cycles

RIGHT-HAND STATION 440 AT S8R AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACKED FRAME RIGHT-HAND STATION 440 S8R PER EA 5310-04498.

Part: FRAME — CRACKED (BS 787 S8L) · airframe 28,521 hrs · 15,077 cycles

LEFT-HAND STATION 787 AT S8L AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACKED FRAME AT LEFT-HAND STATION 787 S8L PER EA 5310-04498.

Part: FRAME — CRACKED (FUSELAGE) · airframe 28,521 hrs · 15,077 cycles

LEFT-HAND STATION 867 AT S8L AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACK AT STATION 867 S8L PER EA 5310-04498.

Part: FRAME — CRACKED (BS 747 S8R) · airframe 28,521 hrs · 15,077 cycles

RIGHT-HAND STATION 747 AT S8R AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACKED FRAME RIGHT-HAND STATION 747 S8R PER EA 5310-04498.

Part: FRAME — CRACKED (BS 867 S8R) · airframe 28,521 hrs · 15,077 cycles

RIGHT-HAND STATION 867 AT S-8 AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACKED FRAME AT RIGHT-HAND STATION 867 S8R PER EA 5310-04498.

Part: FRAME — CRACKED (FUSELAGE) · airframe 28,521 hrs · 15,077 cycles

LEFT-HAND STATION 827 AT S8L AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACK AT STATION 827 S8L PER EA 5310-04498.

Part: FRAME — CRACKED (BS 380 S8R) · airframe 28,521 hrs · 15,077 cycles

RIGHT-HAND STATION 380 AT S8R AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACKED FRAME RIGHT-HAND STATION 380 S8R PER EA 5310-04498.

Part: FRAME — CRACKED (BS 827 S8R) · airframe 28,521 hrs · 15,077 cycles

RIGHT-HAND STATION 827 AT S-8 AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACKED FRAME RIGHT-HAND STATION 827 S8R PER EA 5310-04498.

Part: FRAME — CRACKED (BS 727B S8L) · airframe 28,531 hrs · 15,077 cycles

LEFT-HAND STATION 727B AT S8L AIR CONDITIONING (A/C) BRACKET MOUNT HOLE CRACKED. REPAIRED CRACKED FRAME AT LEFT-HAND STATION 727B S8L PER EA 5310-04498.

Part: FRAME — CRACKED (BS 787 S8R) · airframe 28,521 hrs · 15,077 cycles

RIGHT-HAND STATION 787 AT S8R AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED CRACKED FRAME RIGHT-HAND STATION 787 S8R PER EA 5310-04498.

Part: BRACKET — CORRODED (L1 GIRT BAR) · airframe 28,521 hrs · 15,077 cycles

CORROSION ON L1 DOOR GIRT BAR ATTACH PLATES (2EA). REMOVED L1 DOOR GIRT BAR ATTACH FITTINGS, CORROSION DETERMINED TO BE OUT OF LIMITS PER 737-500 SRM 53-10-15 FIG 101. FABRICATED NEW GIRT BAR ATTACH FITTINGS REF BAC DWG 65C16121, AND INSTALLED NEW GIRT BAR FITTINGS REF 737-500 SRM 51-40-02.

Part: FRAME — CRACKED (BS 400 S8L) · airframe 28,521 hrs · 15,077 cycles

STATION 400 AT S8L AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED FRAME AT STATION 400 S8L BRACKET INBOARD MOUNT HOLE IAW EA 5310-04498.

Part: FRAME — CRACKED (BS 440 S8L) · airframe 28,521 hrs · 15,077 cycles

STATION 440 AT S8L AIR CONDITIONING (A/C) BRACKET INBOARD MOUNT HOLE CRACKED. REPAIRED FRAME AT STATION 440 S8L BRACKET INBOARD MOUNT HOLE IAW EA 5310-04498.

Part: INTERCOSTAL — CRACKED (FUSELAGE) · airframe 28,521 hrs · 15,077 cycles

INTERCOSTAL UPPER ANGLE HAS CRACK AT NUT PLATE BS 348 - 360 LBL 14". REMOVED DAMAGED INTERCOSTAL UPPER ANGLE IAW B737 SRM 51-40-02 MATERIAL ID FOR ANGLE, BAC1505-100120 EXTRUSION, AND MATERIAL ID FOR SHIM 7075-T6, 0125", PAC 75145Q, IAW EA5310-03585, FABRICATED ANGLE AND SHIM IAW EA3510-03555. ALODINED AND PRIMED ANGLE AND SHIM IAW B737 SRM 51-20-01. INSTALLED ANGLE AND SHIM IAW EA5310-03585.

Part: INTERCOSTAL — CRACKED (FUSELAGE) · airframe 16,296 hrs · 8,643 cycles

INSPECTION FOUND FORWARD ENTRY AREA INTERCOSTAL CRACKED AT STA 344-360, BL 0. A NEW INTERCOSTAL WAS INSTALLED IAW SRM 51-40-00.

Part: HINGE PIN — CORRODED (HORIZ STAB) · airframe 16,296 hrs · 8,643 cycles

INSPECTION FOUND EXTERIOR OF INNER PIN AND BORE OF OUTER HINGE PIN FOR HORIZONTAL STABILIZER CORRODED. THE INNER PIN AND OUTER HINGE PIN ASSEMBLY WERE REMOVED AND REPLACED IAW EA 5550-01315 AND MM 27-41-31.

Part: ANGLE — CORRODED (DOOR FRAME) · airframe 16,296 hrs · 8,643 cycles

INSPECTION FOUND ZEE ANGLE I/B OF L-2 DOOR CORRODED. THE ZEE ANGLE WAS REMOVED AND REPLACED IAW SRM 51-40-02.

Part: INTERCOSTAL — CRACKED (FUSELAGE) · airframe 16,296 hrs · 8,643 cycles

INSPECTION FOUND A .125 INCH CRACK IN INTERCOSTAL AT FORWARD ENTRY, STA 312-328, LBL 50.5. THE INTERCOSTAL WAS REMOVED AND REPLACED IAW SRM 51-10-02.

Part: INTERCOSTAL — CRACKED (FUSELAGE) · airframe 16,296 hrs · 8,643 cycles

INSPECTION FOUND A .125 INCH CRACK IN INTERCOSTAL AT FORWARD ENTRY STA 328-344, LBL 50.5. THE INTERCOSTAL WAS REMOVED AND REPLACED IAW SRM 51-10-02.

Part: INTERCOSTAL — CRACKED (FUSELAGE) · airframe 16,296 hrs · 8,643 cycles

INSPECTION FOUND A .125 INCH CRACK IN INTERCOSTAL AT FORWARD ENTRY STA 344-360, BL 0. THE INTERCOSTAL WAS REMOVED AND REPLACED IAW SRM 53-10-51 AND 51-70-11.

Part: GATE — CRACKED (L2 DOOR) · airframe 16,296 hrs · 8,643 cycles

INSPECTION FOUND A 0.33 INCH CRACK IN LOWER GATE OF L-2 DOOR. THE CRACK WAS LOCATED AT AFT CORNER FROM AFT MOST RIVET TOWARDS HINGE. INSTALLED HINGE AND SEALED RETAINERS ON NEW GATE IAW SRM 51-40-02.

Part: DETECTOR — SHORTED (APU) · airframe 14,001 hrs · 7,382 cycles

THE APU FIRE WARNING SOUNDED AFTER APU START ON FINAL APPROACH TO ATL. THE BELL WAS SILENCED AND THE APU FIRE CHECKLIST WAS RUN. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NO EVIDENCE OF FIRE. THE PROBLEM WAS IDENTIFIED AS A FALSE FIRE WARNING AND THE CAUSE WAS DETERMINED TO BE A SHORTED APU LOWER FIRE DETECTION LOOP. THE APU FIRE BOTTLE AND LOWER FIRE LOOP WERE REMOVED AND REPLACED IAW MM 26-15-14 AND 26-22-11. OPERATIONAL CHECKS WERE GOOD.