N959BP

Part: LAMP — BURNED OUT (EMERGENCY LIGHT) · airframe 13,639 hrs · 9,795 cycles

FOUND ONE LAMP BURNT OUT @ R/H LOWER OVERWING EXIT IDENTIFIER.

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 13,639 hrs · 9,795 cycles

EXTERIOR EMERGENCY LIGHTS AT STA 727C INOP. EMERGENCY POWER SUPPLY BATTERY DISCHARGED

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 12,857 hrs · 9,424 cycles

WHILE PERFORMING FUNCTIONAL CHECK OF THE EMERGENCY LIGHTING SYSTEM BATTERY PACKS, THE AFT RH EMERGENCY LIGHT BATTERY PACK FAILED. R & R BATTERY PACK.

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 12,401 hrs · 9,231 cycles

EMERGENCY LIGHTING BATTERY PACK FAILED FROM STOCK.

Part: BATTERY PACK — NO TEST (EMERGENCY LIGHTS) · airframe 12,401 hrs · 9,231 cycles

BATTERY TEST WOULD NOT HOLD A CHARGE.

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 12,326 hrs · 9,198 cycles

GROUND ILLUMINATION BATTERY PACK OVER 2L DOOR FAILS TO HOLD A CHARGE.

Part: BATTERY PACK — DISCHARGED (ZONE 200) · airframe 12,255 hrs · 9,164 cycles

OVERWING ESCAPE GROUND ILLUMINATION LIGHT POWER SUPPLY DISCHARGES TOO QUICKLY. REMOVED AND REPLACED EMERGENCY BATTERY PACK. THIS REPORT WAS FILED IN THE SDR SYSTEM ON 1/27/2020 BUT WAS NOT RECORDED IN THE SYSTEM DUE TO FAA IT ISSUES AT THE TIME OF ENTRY.

Part: BATTERY PACK — DISCHARGED (ZONE 200) · airframe 12,255 hrs · 9,164 cycles

OVERWING ESCAPE GROUND ILLUMINATION LIGHT POWER SUPPLY DISCHARGES TOO QUICKLY. REMOVED AND REPLACED EMERGENCY BATTERY PACK. THIS REPORT WAS FILED IN THE SDR SYSTEM ON 1/27/2020 BUT WAS NOT RECORDED IN THE SYSTEM DUE TO FAA IT ISSUES AT THE TIME OF ENTRY.

Part: POWER SUPPLY — NO TEST (EMERGENCY LIGHTS) · airframe 12,255 hrs · 9,164 cycles

EMERGENCY LIGHT POWER SUPPLY FAILED TIME CHECK DURING INSPECTION.

Part: BATTERY — DISCHARGED (EMERGENCY LIGHTS) · airframe 12,255 hrs · 9,164 cycles

EMERGENCY LIGHT POWER SUPPLY DISCHARGES TOO QUICKLY.

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 12,245 hrs · 9,156 cycles

EMERGENCY BATTERY PACK FAILED DURING ROUTINE MAINTENANCE CHECK

Part: ANGLE — CORRODED (BS 1096-1129) · airframe 12,239 hrs · 9,153 cycles

APU COMPARTMENT LT TORQUE BOX LOWER ANGLE ASSY CORRODED. CORROSION DAMAGE COMMON TO APU TORQUE BOX LOWER ANGLE BETWEEN BS 1096 AND BS 1129, AT LBL 25.0. CORROSION DAMAGE COMMON TO THE P/N 148A8615-55 ANGLE BETWEEN STA 1104 AND STA 1121. THE CORROSION DAMAGE HAS BEEN REMOVED PER THE PROCEDURES OF THE SRM. THE REWORK EXCEEDS THE LIMITS OF B737-700 SRM 53-80-13 ALLOWABLE DAMAGE 2. THE REWORK HAS BEEN FLOURESCENT DYE PENETRANT INSPECTED IAW BOEING SOPM 20-20-02. NO CORROSION REMAINING. THE MINIMUM REMAINING MATERIAL THICKNESS COMMON TO THE REWORK HAS BEEN DETERMINED USING UT PER B737 NDT MANUAL PART 4, 51-00-00 PROCEDURE 2. THE MINIMUM REMAINING MATERIAL THICKNESS IS .054-INCH.

Part: BATTERY PACK — DISCHARGED (CABIN) · airframe 11,584 hrs · 8,701 cycles

EMERGENCY LIGHTS IN AFT R/H CABIN FAIL FUNCTION TEST TWICE. REPLACED BATTERY PACK REF: AMM 33-51-06 OPS CHECKED GOOD.

Part: SCREW — SHEARED (PAX DOOR) · airframe 9,044 hrs · 6,794 cycles

MIGRATION/FAILURE OF SCREW IN GUIDE ARM ASSY, LT FORWARD ENTRY DOOR, THE FAILURE WAS IDENTIFIED BY GROUND SERVICE CREWS BEING UNABLE TO OPEN THE CABIN L1 DOOR, THE DOOR BECAME JAMMED & REQUIRED EXCESSIVE FORCE TO OPEN. INSPECTED DOOR HINGE AND ROLLER COMPONENTS. FOUND THE RADIUS LINK PIN RETENTION SCREW HEAD SHEARED AND JAMMING THE ROLLER CHANNEL. NO FURTHER DAMAGE FOUND. REPLACED THE RADIUS LINK PIN, WASHER, KEYWASHER AND RETENTION SCREW. TORQUED RETENTION SCREW TO 20 LBS/IN. DOOR OPS CHECK GOOD. IAW AMM 52-11-21 AND SB 737-52-1175.

Part: ATTACH FITTING — CORRODED (HORIZONTAL STAB) · airframe 8,739 hrs · 6,563 cycles

PITTING FOUND ON UPPER FORWARD ATTACH POINT ON LT HORIZONTAL STABILIZER. REPAIRED IAW SERVICE REQUEST 4-3014640753.

Part: BELTFRAME — DENTED (ZONE 100) · airframe 8,739 hrs · 6,563 cycles

DENT FOUND ON RADIUS OF BELTFRAME OUTER ANGLE AT BS 727B S-22R. REPAIRED IAW MFG SERVICE REQUEST 4-3016189532.

Part: INTERCOSTAL — CRACKED (BS 312-328) · airframe 6,414 hrs · 4,738 cycles

DURING 1C AND 3C HEAVY MAINTENANCE VISIT, FOUND INTERCOSTAL, CRACKED. REPLACED INTERCOSTAL IAW SRM.

Part: INTERCOSTAL — CRACKED (BS 344-360) · airframe 6,414 hrs · 4,738 cycles

DURING 1C AND 3C HEAVY MAINTENANCE VISIT, FOUND INTERCOSTAL BS 344-360 BL0 CRACKED, REPLACED INTERCOSTAL IAW SRM 51-40-02. .

Part: SKIN — CHAFED (FUSELAGE) · airframe 4,143 hrs · 2,988 cycles

FUSELAGE SKIN CHAFING WAS NOTED BELOW DORSAL FAIRING, BLENDED AND FOUND WITHIN LIMITS AT BS 847 IN ACCORDANCE WITH BOEING SR NO. 1-2034146972, MESSAGES XDV-ATR-11-0002-01C, DATED NOVEMBER 8, 2011, XDV-ATR-11-0002-05B, DATED NOVEMBER 10, 2011, AND XDV-ATR-11-0002-06C, DATED NOVEMBER 10, 2011 PER BOEING ODA-300064-NM APPROVED FORM 8100-9, DATED NOVEMBER 11, 2011. NOMINAL THICKNESS 0.640 INCH, REMAINING 0.036 INCH, MAX MATERIAL REMOVED 0.004 INCH.

Part: INTERCOSTAL — CRACKED (FUSELAGE) · airframe 4,143 hrs · 2,988 cycles

FORWARD MAIN ENTRANCE DOOR WET AREA INTERCOSTAL AT BS 312 - BS 328, LBL 46 REPLACED WITH NEW P/N 141A5410-12 IN ACCORDANCE WITH BOEING STRUCTURAL REPAIR MANUAL (SRM) D634A201, REV 44, CHAPTER 51-40-02.