N733AR

Part: TEST SWITCH — BROKEN (ZONE 200) · airframe 44,226 hrs · 5,105 cycles

AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANT REPORTED EMERGENCY LIGHTS AT DOOR 4L COME ON, ON LANDING. MAINTENANCE FOUND TEST SWITCH BROKEN ON POWER SUPPLY ASSY M33400 AND REPLACED IAW AMM 33-51-06.

Part: BULB — INOPERATIVE (ZONE 200) · airframe 42,273 hrs · 4,871 cycles

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT INOP AT POSITION ROW 32CA CEILING PANEL AND 4F-LC LAV CEILING EMERGENCY LIGHT INOP. MAINTENANCE RELAMPED EMERGENCY LIGHTS AT ROW 32AC AND 4F-LC CEILING LIGHTS PER AMM 33-51-03.

Part: POWER SUPPLY — INOPERATIVE (ZONE 200) · airframe 40,919 hrs · 4,704 cycles

AIRCRAFT WAS NOT GROUNDED: 4R DOOR EMERGENCY EXIT LIGHT FLASHES ON/OFF AT RANDOM INTERVALS. CARRIED OUT TEST IAW AMM 33-51-06-960 AND REPLACED POWER SUPPLY BATTERY CHANGED ABOVE 4R.

Part: LIGHT — NO TEST (ZONE 200) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: ONE EMERGENCY LIGHT IN BUSINESS CLASS HAS INOPERATIVE LED RIGHTSIDE CABIN. REPLACED EMERGENCY LIGHT IN BUSINESS CLASS AT RIGHT HAND AND PERFORMED OPERATIONAL CEHCK GOOD. PER B777-3 AMM 33-51-05-960-801.

Part: LIGHT — BROKEN (ZONE 900) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: LAV 4F-LC OUTBOARD EMERGENCY LIGHT HAS WIRE BROKEN AT KICKSTRIP. MAINTENNCE REPLACED LIGHT ASSEMBLY AT LAV 4F-LC EMERGENCY LIGHT IAW B777-3 AMM 33-51-05-960-802 AND 20-61-16.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: OFAR EMERGENCY LIGHT ON BUNK 1 INOP. MAINTENANCE REPLACED BATTERY PACK OFAR AT L/H SIDE M33143 IAW B777 AMM 33-29-12-960-809 AND WDM 33-51-11.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: OFAR EMERGENCY LIGHT ON BUNK 7 IS INOP. MAINTENANCE REPLACED BATTERY PACK OFAR AT L/A SIDE M33143 IAW B777 AMM 33-29-12-960-809 AND WDM 33-51-11.

Part: POWER SUPPLY — DISCHARGED (ZONE 200) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: LH NO. 3 OVER-WING DOOR EPAS BATTERY WILL NOT CHARGE. MAINTENANCE REPLACED LH NO 3 OVER-WING DOOR EPAS BATTERY IAW B777-3 AMM 52-12-19.

Part: POWER SUPPLY — DISCHARGED (ZONE 200) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: LH NO. 3 OVER-WING DOOR BACKUP BATTERY WILL NOT CHARGE. MAINTENANCE REPLACED LH NO 3 OVER-WING DOOR BACKUP BATTERY M52122, IAW AMM 52-12-19.

Part: BATTERY PACK — DISCHARGED (ZONE 200) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: RIGHT HAND NUMBER 3 OVERWING DOOR BACKUP BATTERY WILL NOT CHARGE. REPLACED RIGHT HAND MUMBER 3 OVERWING DOOR BACKUP BATTERY. PERFORMED OPERATIONAL CHECK GOOD. PER B777-300 AMM 52-12-19.

Part: BATTERY PACK — DISCHARGED (ZONE 200) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: RIGHT HAND NUMBER 3 OVERWING DOOR EPAS BATTERY WILL NOT CHARGE. REPLACED RIGHT HAND NUMBER 3 OVERWING DOOR EPAS BATTERY. PERFORMED OPERATIONAL TEST GOOD. PER B777-3 AMM 52-12-19.

Part: WEB — CRACKED (ZONE 100) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: FORWARD CARGO COMPARTMENT HAS CRACKED WEB LOCATED AT STA 825 AND LBL 62. REPAIRED WEB PER SRM 53-00-53-2R-8 REPAIR 8.

Part: PANEL — BROKEN (ZONE 500) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT WAS GROUNDED: RIGHT WING, TOP SIDE AT WS 387.00 FRONT SPAR, PANEL BROKEN. ACCOMPLISHED PERMANENT REPAIR PER SRM 51-70-04-2R.

Part: SKIN — DAMAGED (ZONE 600) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: RIGHT HAND WING, TOP SIDE AT WS 414.50, FRONT SPAR, PANEL HAVE COMPOSITE MATERIAL EXPOSED. ACCOMPLISHED PERMANENT REPAIR RIGHT HAND WING TOP SIDE WS 414.50 FRONT SPAR. PER B777-300 SRM 57-41-01-1A-2 AND 51-70-08-R-1.

Part: SUPPORT ANGLE — CRACKED (ZONE 100) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: FORWARD CARGO COMPARTMENT HAS CRACKED WEB SPLICE LOCATED APPROX BS 825 TO 867 AND LBL-62. PERFORMED PERMANENT REPAIR ON FORWARD CARGO AT LOWER STRAP SUPPORT ANGLE FOR THE SLOPPING SIDE WALL LINER SUPPORT AT BS 825 TO 867 AND LBL-62. PER B777-300 SRM 53-00-53-2R-8.

Part: FLOOR SUPPORT — CRACKED (ZONE 100) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: FORWARD CARGO FLOOR AREA HAS A WEB SUPPORT THAT IS CRACKED LOCATED BETWEEN STA 739 AND STA 755.50 AT RBL 62. REPAIRED LOWER STRAP/ SUPPORT ANGLE PER SRM 53-00-53-2R-8.

Part: WEB — CRACKED (ZONE 100) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: FORWARD CARGO COMPARTMENT HAS CRACKED WEB LOCATED AT STA 825 AND RBL62. REPAIRED WEB PER SRM 53-00-53-2R-8.

Part: SUPPORT ANGLE — CRACKED (ZONE 100) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: FORWARD CARGO FLOOR AREA HAS A WEB SUPPORT THAT IS CRACKED BETWEEN BS 739 TO 755.50 AND LBL-62. PERFORMED PERMANENT REPAIR ON FORWARD CARGO AT LOWER STRAP SUPPORT ANGLE FOR THE SLOPPING SIDE WALL LINER SUPPORT BS 739 TO 755.50. PER B777-300 SRM53-00-53-2R-8.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: OFCR EMERGENCY LIGHTS INOP. MAINTENACE REPLACED BATTERY PACK OFCR AT M33118 IAW B777 AMM33-29-10-960-810 / AMM 33-29-10-960-811, OPS TEST GOOD IAW B777 AMM33-29-710-802.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,902 hrs · 4,698 cycles

AIRCRAFT IN BASE MAINTENANCE: OFCR BACKUP LIGHT TEST FAILED. LIGHTS DID NOT COME ON. MAINTENANCE REPLACED BATTERY PACK OFCR AT M33118 IAW B777 AMM 33-29-10-960-810 / AMM 33-29-10-960-811.

Part: POWER SUPPLY — INOPERATIVE (ZONE 200) · airframe 40,677 hrs · 4,666 cycles

AIRCRAFT WAS NOT GROUNDED: LAST 4 ROW AT 5L ROW 31 TO THE AFT EMERGENCY LIGHTS FLICKER ON FLOOR, REPEAT 8616950. MAINTENANCE REPLACED POWER SUPPLY AND BATTERY PACK M33409 IAW AMM 33-50-00. OPS CHECK NORMAL.

Part: POWER SUPPLY — INOPERATIVE (ZONE 200) · airframe 40,677 hrs · 4,666 cycles

AIRCRAFT WAS NOT GROUNDED: ENTIRE FLIGHT THE EMERG EXIT LIGHTS ON FLOOR FROM 31 TO BACK OFAIRPLANE SWITCHED FROM FLICKERING, OFF AND ON. NO HELP FROM CYCLING SWITCH. MAINTENANCE REPLACED M33400AND M33406 AT 4L DOOR IAW AMM 33-51-00.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,673 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHTS AT DOOR 2L INOPERATIVE. MAINTENANCE REPLACED BATTERY PACK AFT OFDOOR 2L IAW AMM 33-51-06.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,673 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHTS NEAR DOOR 5L INOPERATIVE. MAINTENANCE REPLACED BATTER PACK AT DOOR 5L IAW AMM 33-51-06.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,673 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHTS NEAR DOOR 5L INOPERATIVE. MAINTENANCE REPLACED BATTER PACK AT DOOR 5L IAW AMM 33-51-06.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,673 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHTS AT DOOR 2R INOPERATIVE. MAINTENANCE REPLACED BATTERY PACK AFT OFDOOR 2R IAW AMM 33-51-06.

Part: PIN — DAMAGED (ELEC CONNECTOR) · airframe 40,673 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: SEAT 9D EMERGENCY LIGHT INOPERATIVE. MAINTENANCE FOUND DAMGE PIN/CONTANCT AND REPLACED IAW IAW B777 SWPM 20-60-02.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 406,733 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHTS DOOR 3L INOPERATIVE. MAINTENANCE REPLACED BATTERY PACK AT DOOR 3L IAW AMM 33-51-06.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,673 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHTS ROWS 1-4 INOPERATIVE. MAINTENANCE REPLACED BATTER PACK AT DOOR 2 IAW AMM 33-51-06.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,673 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHTS ROWS 11-22 INOPERATIVE. MAINTENANCE REPLACED BATTER PACK IAW AMM 33-51-06.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 40,673 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHTS ROW 39 - AFT INOPERATIVE. MAINTENANCE REPLACED BATTERY PACK AFT OF ROW 39 IAW AMM 33-51-06.

Part: NONE — NONE (NONE) · airframe 40,673 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: MODIFICATION OF CENTER WING SECTION FRONT SPAR RIGHT HAND UNDER WING LONGERON FROM STA 993 TO STA 1045, FROM S35L TO S37L IS DUE PER EO 5722B008. MODIFICATION OF CENTER WING SECTION FRONT SPAR RIGHT HAND UNDER WING LONGERON WAS ACCOMPLISHED PER EO 5722B008. THIS ACCOMPLISHES BOEING SB 777-57A0122.

Part: NONE — NONE (NONE) · airframe 40,673 hrs · 4,664 cycles

AIRCRAFT IN BASE MAINTENANCE: MODIFICATION OF CENTER WING SECTION FRONT SPAR LEFT HAND UNDER WING LONGERON FROM STA 993 TO STA 1045, FROM S35L TO S37L IS DUE PER EO 5722B008. MODIFICATION OF CENTER WING SECTION FRONT SPAR LEFT HAND UNDER WING LONGERON WAS ACCOMPLISHED PER EO 5722B008. THIS ACCOMPLISHES BOEING SB 777-57A0122.

Part: POWER SUPPLY — INOPERATIVE (ZONE 200) · airframe 40,446 hrs · 4,637 cycles

AIRCRAFT WAS NOT GROUNDED: L4 DOOR EMERGENCY EXIT LIGHT OVER DOOR INOP. REMOVED AND REPLACED POWER SUPPLY IAW AMM 33-51-06 .

Part: POWER SUPPLY — INOPERATIVE (ZONE 200) · airframe 39,707 hrs · 4,552 cycles

AIRCRAFT WAS NOT GROUNDED: 3 CEILING AND 1 DOOR EMERGENCY LIGHT AT DOOR 4L INOP. MAINTENANCE REPLACED POWER SUPPLY ASSY PER AMM 33-51-06 AT 4L DOOR.

Part: HEAT EXCHANGER — CONTAMINATED (ZONE 200 - FUSE) · airframe 37,233 hrs · 4,263 cycles

AIRCRAFT WAS GROUNDED: DIRTY SOCK ODOR FROM PACKS W/APU ON DURING GROUND OPS/TAXI OUT AND ON DESCENT W/APU OFF. IN IMC ODOR PRESENT THROUGHOUT AIRCRAFT, DISSIPATED SHORTLY AFTER TAKEOFF WITHOUT CREW ACTION. MAINTENANCE REPLACED L /H PACK HEAT EXCHANGER IAW J/C 72C00021005.

Part: OIL SYSTEM — LEAKING (APU) · airframe 37,233 hrs · 4,263 cycles

AIRCRAFT WAS GROUNDED: DIRTY SOCK ODOR FROM PACKS W/APU ON DURING GROUND OPS/TAXI OUT AND ON DESCENT W/APU OFF. IN IMC ODOR PRESENT THROUGHOUT AIRCRAFT, DISSIPATED SHORTLY AFTER TAKEOFF WITHOUT CREW ACTION. (OPEN)

Part: UNKNOWN — NO TEST (ZONE 200 - FUSE) · airframe 36,725 hrs · 4,206 cycles

AIRCRAFT WAS NOT GROUNDED: DOOR 3L EMERGENCY POWER ASSIST SYSTEM (EPAS) BATTERY TEST FAILED.**SUPPLEMENTAL REPORT WILL BE SUBMITTED**(OPEN).

Part: BATTERY PACK — NO TEST (ZONE 200 - FUSE) · airframe 36,725 hrs · 4,206 cycles

AIRCRAFT WAS NOT GROUNDED: DOOR 3L EMERGENCY POWER ASSIST SYSTEM (EPAS) BATTERY TEST FAILED.**SUPPLEMENTAL REPORT FOR (AALA202311172016): INSTALLED EPAS BATTERY PACK. FUNCTIONAL CHECK GOOD.**(CLOSED).

Part: LIGHT — INOPERATIVE (ZONE 200 - FUSE) · airframe 36,717 hrs · 4,205 cycles

AIRCRAFT WAS NOT GROUNDED: FOUND FWD EMERGENCY LIGHT ON SEAT 5G INOP DURING PS CHECK J/C 72L00005043. MAINTENANCE REMOVED AND REPLACED FWD EMER LIGHT AT SEAT 5G REF. AMM 33-51-05.

Part: VALVE — UNCONTROLLABLE (COCKPIT TEMP) · airframe 32,889 hrs · 3,807 cycles

AIRCRAFT WAS GROUNDED: DURING CLIMB OUT UNABLE TO CONTROL FLIGHT DECK TEMPERATURE. FLIGHT RETURNED TO MIA LANDING SAFELY. REPLACED FLIGHT DECK TRIM AIR VALVE PER AMM 21-61-02. ACCOMPLISHED SATISFACTORY LEAK AND OPERATIONAL CHECKS.

Part: LIGHT — DAMAGED (ZONE 200 - FUSE) · airframe 32,308 hrs · 3,738 cycles

AIRCRAFT WAS NOT GROUNDED: AISLE EMERGENCY LIGHT BY 5R DOOR GALLEY IS DAMAGED. REPLACED AISLE LIGHT ASSEMBLY AT 5R DOOR PER AMM 33-51-05. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.

Part: FLOOR PANEL — FRACTURED (ZONE 100 - FUSE) · airframe 31,056 hrs · 3,590 cycles

AIRCRAFT WAS NOT GROUNDED: FORWARD CARGO CENTER WALKWAY FLOOR PANEL HAS LONGITUDINAL FRACTURE MEASURING 12 INCHES LONG AND 5 INCHES WIDE FROM ADJACENT TRACK STRUCTURE. ACCOMPLISHED DOUBLER REPAIR PER EA 338565.

Part: LENS — BROKEN (ZONE 200 - FUSE) · airframe 29,785 hrs · 3,448 cycles

AIRCRAFT WAS NOT GROUNDED: RIGHT AISLE MID GALLEY AFT WALL FORWARD PATH EMERGENCY LIGHT LENS BROKEN. REMOVED AND REPLACED LIGHT ASSEMBLY/LENS ON MID GALLEY RIGHT WALL, PER AMM 33-51-05.

Part: FAN — ODOR (ZONE 100 - FUSE) · airframe 29,052 hrs · 3,357 cycles

AIRCRAFT WAS GROUNDED: A STRONG ELECTRICAL FIRE SMELL WAS DETECTED IN PREMIUM ECONOMY CABIN AREA. FLIGHT ATTENDANTS REPORTED SMOKE IN CABIN AND ELECTRICAL SMELL, PASSENGERS REPORTED GRINDING UNDER FLOOR AREA OF LOWER RE CIRCULATION FAN, INFIGHTING ENTERTAINMENT MAIN POWER WAS DISCONNECTED IMMEDIATELY. THERE WAS A VERY LIGHT FOG VISIBLE IN CEILING SMELL AND FOG DEFUSED QUICKLY. STAT PAGE INDICATED RE CIRCULATION FAN INOPERATIVE. ACCOMPLISHED SMOKE ODOR FUMES TROUBLESHOOTING PER WORK CARD 72L00021001, FOUND LOWER RIGHT RE CIRCULATION FAN BLOCKED, AND SMELL SMOKE ODOR FUMES. CARRYOUT FIM 21-25-00-810-808, MAINTENANCE MESSAGE 21-24700 REMOVED AND REPLACED LOWER RIGHT RE CIRCULATION FAN PER AMM 21-25-07. CHECKED OK.

Part: LIGHT — MISSING (ZONE 200 - FUSE) · airframe 27,916 hrs · 3,207 cycles

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT LENS MISSING AT SEATS 12D, 11G, AND 8G. REPLACED EMERGENCY PATH LIGHT ASSEMBLIES WITH NEW (AALA202111228361, AALA202111248755) IAW CMM 25- 02-67, OPS CHECK GOOD.

Part: LIGHT — MISSING (ZONE 200 - FUSE) · airframe 27,916 hrs · 3,207 cycles

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT LENS MISSING AT SEATS 12D, 11G, AND 8G. REPLACED EMERGENCY PATH LIGHT ASSEMBLIES WITH NEW (AALA202111245734, AALA202111248755) IAW CMM 25- 02-67, OPS CHECK GOOD.

Part: LIGHT — MISSING (ZONE 200 - FUSE) · airframe 27,916 hrs · 3,207 cycles

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT LENS MISSING AT SEATS 12D, 11G, AND 8G. REPLACED EMERGENCY PATH LIGHT ASSEMBLIES WITH NEW (AALA202111228361, AALA202111245734) IAW CMM 25- 02-67, OPS CHECK GOOD.

Part: WINDOW — BINDING (COCKPIT) · airframe 25,775 hrs · 2,838 cycles

AIRCRAFT WAS GROUNDED: FIRST OFFICER WINDOW RELEASE DIFFICULT TO OPERATE. ADJUSTED FIRST OFFICER WINDOW LATCH IAW B777-300 AMM 56-11-02-820. WINDOW LATCHES OPERATE NORMAL.

Part: LENS — LOOSE (GIRT BAR) · airframe 25,775 hrs · 2,838 cycles

AIRCRAFT WAS GROUNDED: R5 DOOR GIRT BAR LENS LOOSE AT FORWARD CORNER. RESECURED GIRT BAR LENS AT R5 DOOR IAW B777-300 AMM 52-12-17.

Part: SELECTOR SWITCH — INOPERATIVE (DOOR ASSIST) · airframe 25,775 hrs · 2,838 cycles

AIRCRAFT WAS NOT GROUNDED: WHILE ACCOMPLISHING DOOR 1R EMERGENCY POWER ASSIST SYSTEM RESERVOIR INSPECTION, STEP 8A EMERGENCY POWER ASSIST SYSTEM FUNCTIONAL TEST FAILED. AFTER TROUBLESHOOTING FOUND ON 1R DOOR MODE SELECTOR WAS BAD. REMOVED AND REPLACED MODE SELECTOR SWITCH, TEST GOOD ALL PER B777 52-12-28-000-801.

Part: BATTERY — NO TEST (EPAS) · airframe 25,772 hrs · 2,837 cycles

AIRCRAFT IN BASE MAINTENANCE: WHILE ACCOMPLISHING 1R DOOR EPAS RESERVOIR INSPECTION, FUNCTIONAL TEST FAILED. REPLACED EPAS BATTERY PACK IAW AMM 52-12-28, OPS CHECK GOOD.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 25,722 hrs · 2,837 cycles

AIRCRAFT IN BASE MAINTENANCE: BATTERY PACK M33406 FAILS OPS CHECK. REPLACED BATTERY PACK IAW AMM 33-51-06, OPS CHECK GOOD.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 25,772 hrs · 2,837 cycles

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY BATTERY PACK M33401 FAILS OPS CHECK. REPLACED BATTERY PACK IAW AMM 33-51-06, OPS CHECK GOOD.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 25,772 hrs · 2,837 cycles

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHT BATTERY PACK M33404 FAILS OPS CHECK. REPLACED BATTERY PACK IAW AMM 33-51-06, OPS CHECK GOOD.

Part: RESERVOIR — LOW PRESSURE (L3 DOOR) · airframe 25,772 hrs · 2,837 cycles

AIRCRAFT IN BASE MAINTENANCE: WHILE PERFORMING L3 OVERWING DOOR CIRCUITRY FUNCTIONAL CHECK, HANDLE RESERVOIR BOTTLE DEPRESSURIZED. REPLACED RESERVOIR BOTTLE IAW AMM 52-12-22, OPS CHECK GOOD.

Part: BATTERY — INOPERATIVE (EPAS) · airframe 25,772 hrs · 2,837 cycles

AIRCRAFT IN BASE MAINTENANCE: L3 OVERWING DOOR CIRCUITRY FUNCTIONAL CHECK FAILED. REPLACED EPAS BATTERY IAW WORKCARD 72T83352001, OPS CHECK GOOD.

Part: BATTERY — DISCHARGED (FWD FLASHLIGHT) · airframe 25,214 hrs · 2,761 cycles

AIRCRAFT WAS NOT GROUNDED. DURING ACCOMPLISHMENT OF WC 72C20025110, FOUND THE 2R FWD FLIGHT ATTENDANT FLASHLIGHT WITH LOW BATTERY. REPLACED FLASHLIGHT BATTERY, IAW AMM 25-64-01, OPERATIONS CHECK GOOD.

Part: SLIDE — LOW PRESSURE (R2 DOOR) · airframe 24,406 hrs · 2,660 cycles

AIRCRAFT WAS NOT GROUNDED. R2 DOOR ESCAPE SLIDE/RAFT CYLINDER PRESSURE BELOW ACCEPTABLE RANGE. REMOVED AND REPLACED R2 DOOR SLIDE, IAW MCM 25-94-25.

Part: LIGHT — BROKEN (SEAT 8D) · airframe 24,282 hrs · 2,644 cycles

AIRCRAFT NOT GROUNDED, EMERGENCY EXIT LIGHT BROKEN, SEAT 8D. REMOVED AND REPLACED EMERGENCY EXIT LIGHT AT SEAT 8D, PER ESO 21376. OKAY FOR SERVICE.

Part: LIGHT — BROKEN (SEAT 8D) · airframe 24,282 hrs · 2,644 cycles

AIRCRAFT NOT GROUNDED, EMERGENCY EXIT LIGHT BROKEN, SEAT 8D. REMOVED AND REPLACED EMERGENCY EXIT LIGHT AT 8D, PER ESO 21376. OKAY FOR SERVICE.

Part: LIGHT — BROKEN (SEAT 4G) · airframe 22,530 hrs · 2,458 cycles

AIRCRAFT NOT GROUNDED: MAINTENANCE REPORTS EMERGENCY AISLE LIGHT BEHIND SEAT 4G BROKEN AND INOPERATIVE.***SUPPLEMENTAL ACTION SECT.4 AND 5: INSTALLED EMERGENCY AISLE LIGHT ASSY IAW 33-51-03.***(CLOSED)

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 20,778 hrs · 2,265 cycles

AIRCRAFT WAS NOT GROUNDED: MISSING EMERGENCY LIGHT COVERS AT SEAT 11G, 8G, 3D, AND 8D. MAINTENANCE REPLACED EMERGENCY LIGHT AT SEAT 11G, 8G, 3D, AND 8D PER AMM 33-51-05.

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 20,778 hrs · 2,265 cycles

AIRCRAFT WAS NOT GROUNDED: MISSING EMERGENCY LIGHT COVERS AT SEAT 11G, 8G, 3D, AND 8D. MAINTENANCE REPLACED EMERGENCY LIGHT AT SEAT 11G, 8G , 3D, AND 8D PER AMM 33-51-05.

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 20,778 hrs · 2,265 cycles

AIRCRAFT WAS NOT GROUNDED: MISSING EMERGENCY LIGHT COVERS AT SEAT 11G, 8G, 3D, AND 8D. MAINTENANCE REPLACED EMERGENCY LIGHT AT SEAT 11G, 8G, 3D, AND 8D PER AMM 33-51-05.

Part: CONNECTOR — LOOSE (EMERGENCY LIGHTS) · airframe 20,778 hrs · 2,265 cycles

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHT AT SEAT 9D WAS INOPERATIVE. MAINTENANCE FOUND CONNECTOR LOOSE AND PROPERLY RESECURED CONNECTOR PER STANDARD PRACTICES.

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 20,778 hrs · 2,265 cycles

AIRCRAFT WAS NOT GROUNDED: MISSING EMERGENCY LIGHT COVERS AT SEAT 11G, 8G, 3D, AND 8D. MAINTENANCE REPLACED EMERGENCY LIGHT AT SEAT 11G, 8G, 3D, AND 8D PER AMM 33-51-05.

Part: SMOKE DETECTOR — FALSE ACTIVATION (NOT REPORTED) · airframe 20,019 hrs · 2,182 cycles

AIRCRAFT WAS NOT GROUNDED: SMOKE ALARM CHIMES WERE INTERMITENT. MAINTENANCE ACCOMPLISHED FIM TASK 26-13-00-710-801 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.

Part: BATTERY — INOPERATIVE (DOOR ASSIST) · airframe 18,576 hrs · 2,032 cycles

R3 DOOR EMERGENCY POWER ASSIST SYSTEM BATTERY WAS INOPERATIVE. REPLACED THE BATTERY IAW AMM 52-12-19, AND PERFORMED SATISFACTORY OPERATIONAL CHECK.

Part: BATTERY — NO TEST (EMERGENCY LIGHTS) · airframe 17,195 hrs · 1,880 cycles

DURING ACCOMPLISHENT OF CARD 2324 PART OF ST 27, THE BATTERY PACK IN THE FIRST CLASS DOME LIGHT LEFT SIDE FAILED. REPLACED BATTERY PACK IAW AMM 33-51-06. ITEM. OK FOR SERVICE.

Part: LENS — MISSING (CABIN) · airframe 12,135 hrs · 1,347 cycles

AIRCRAFT WAS GROUNDED. EMERGENCY EXIT LIGHT ON FLOOR BY GALLEY BAR HAS A MISSING LENS COVER. RE-INSTALLED LENS COVER PER AMM 33-51-05. OPERATIONAL CHECK GOOD.

Part: LENS — MISSING (CABIN) · airframe 12,135 hrs · 1,347 cycles

AIRCRAFT WAS GROUNDED. EMERGENCY EXIT LIGHT ON FLOOR ACROSS FROM THE R5 DOOR HAS A MISSING LENS COVER. RE-INSTALLED LENS COVER PER AMM 33-51-05. OPERATIONAL CHECK GOOD.

Part: LENS — MISSING (CABIN) · airframe 12,135 hrs · 1,347 cycles

AIRCRAFT WAS GROUNDED. EMERGENCY EXIT LIGHT ON FLOOR ACROSS FROM THE R2 DOOR HAS A MISSING LENS COVER. RE-INSTALLED LENS COVER PER AMM 33-51-05. OPERATIONAL CHECK GOOD.

Part: LENS — MISSING (CABIN) · airframe 12,135 hrs · 1,347 cycles

AIRCRAFT WAS GROUNDED. EMERGENCY EXIT LIGHT ON FLOOR BY LAVATORY 3F-RC HAS A MISSING LENS COVER. RE-INSTALLED LENS COVER PER AMM 33-51-05. OPERATIONAL CHECK GOOD.

Part: LENS — MISSING (CABIN) · airframe 12,135 hrs · 1,347 cycles

AIRCRAFT WAS GROUNDED. EMERGENCY EXIT LIGHT ON FLOOR BY SEAT 33D HAS A MISSING LENS COVER. RE-INSTALLED LENS COVER PER AMM 33-51-05. OPERATIONAL CHECK GOOD.

Part: LENS — MISSING (CABIN) · airframe 12,135 hrs · 1,347 cycles

AIRCRAFT WAS GROUNDED. EMERGENCY EXIT LIGHT ON FLOOR BY LAVATORY 4F-LC HAS A MISSING LENS COVER. RE-INSTALLED LENS COVER PER AMM 33-51-05. OPERATIONAL CHECK GOOD.

Part: LENS — MISSING (CABIN) · airframe 12,135 hrs · 1,347 cycles

AIRCRAFT WAS GROUNDED. EMERGENCY EXIT LIGHT ON FLOOR BY SEAT 4J HAS A MISSING LENS COVER. RE-INSTALLED LENS COVER PER AMM 33-51-05. OPERATIONAL CHECK GOOD.

Part: LENS — MISSING (CABIN) · airframe 12,135 hrs · 1,347 cycles

AIRCRAFT WAS GROUNDED. EMERGENCY EXIT LIGHT ON FLOOR BY SEAT 4D HAS A MISSING LENS COVER. RE-INSTALLED LENS COVER PER AMM 33-51-05. OPERATIONAL CHECK GOOD.

Part: WATER HEATER — FAULTY (ZONE 900) · airframe 11,602 hrs · 1,292 cycles

THE AIRCRAFT WAS NOT GROUNDED. 3L LAV HAD A VERY STRONG ELECTRICAL SMELL, NO SMOKE OR HEAT. TURNED OFF WATER HEAT. SO STRONG THE ODOR, WE MOVED PASSENGERS. INSPECTED LAV 3F-1L. CEILING AND MIRROR LIGHTS CKS OK. REMOVED AND REPLACED LAV WATER HEATER PER AMM38-13-01 AND IPC 38-13-01-52J. OPS CKS OK. LEAK CKS OK. NO ODOR NOTED.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 10,293 hrs · 1,153 cycles

FWD EMERGENCY LIGHT AT SEAT 9D INOP. REMOVED AND REPLACED FWD EMERGENCY LIGHT AT SEAT 9D IAW CMM 25-02-67 ESO 21376. OPS CKD OK. THE AIRCRAFT WAS NOT GROUNDED.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 9,900 hrs · 1,114 cycles

SEAT 9D FORWARD EMERGENCY FLOOR PROXIMITY LIGHT DOES NOT COME ON DURING TEST, REPLACED SEAT 9D FWD EPL LIGHT ASSY, OPS CHECKED OK IAW AMM 33-51-05. THE AIRCRAFT WAS NOT GROUNDED.

Part: LENS — MISSING (CABIN) · airframe 7,963 hrs · 904 cycles

AIRCRAFT WAS NOT GROUNDED. EMERGENCY LIGHT LENS MISSING AT 3F LEFT LAVATORY ON AFT SIDE. REMOVED AND REPLACED LIGHT ASSEMBLY IAW 33-51-05.

Part: LENS — MISSING (CABIN) · airframe 7,963 hrs · 904 cycles

AIRCRAFT WAS NOT GROUNDED. EMERGENCY LIGHT LENS MISSING AT 3F RIGHT LAVATORY ON AFT SIDE. REMOVED AND REPLACED LIGHT ASSEMBLY IAW 33-51-05.

Part: LENS — MISSING (CABIN) · airframe 7,963 hrs · 904 cycles

AIRCRAFT WAS NOT GROUNDED. EMERGENCY LIGHT LENS MISSING AT 4F LEFT LAVATORY ON AFT SIDE. REMOVED AND REPLACED LIGHT ASSEMBLY IAW 33-51-05.

Part: LENS — MISSING (CABIN) · airframe 7,963 hrs · 904 cycles

AIRCRAFT WAS NOT GROUNDED. EMERGENCY LIGHT LENS MISSING AT MID GALLEY FORWARD PARTITION ON RIGHT SIDE. REMOVED AND REPLACED LIGHT ASSEMBLY IAW 33-51-05.

Part: LENS — MISSING (CABIN) · airframe 7,963 hrs · 904 cycles

AIRCRAFT WAS NOT GROUNDED. EMERGENCY LIGHT LENS MISSING AT MID GALLEY BAR AREA. REMOVED AND REPLACED LIGHT ASSEMBLY IAW 33-51-05.

Part: LENS — MISSING (CABIN) · airframe 7,963 hrs · 904 cycles

AIRCRAFT WAS NOT GROUNDED. EMERGENCY LIGHT LENS MISSING AT MID GALLEY FORWARD PARTITION ON LEFT SIDE. REMOVED AND REPLACED LIGHT ASSEMBLY IAW 33-51-05

Part: LIGHT — BROKEN (CABIN) · airframe 7,963 hrs · 904 cycles

AIRCRAFT WAS NOT GROUNDED. EMERGENCY LIGHT LENS MISSING AT AFT GALLEY. REMOVED AND REPLACED LIGHT ASSEMBLY IAW 33-51-05.

Part: LENS — MISSING (CABIN) · airframe 7,963 hrs · 904 cycles

AIRCRAFT WAS NOT GROUNDED. MIDDLE EMERGENCY LIGHT LENS MISSING AT 3F RIGHT LAVATORY ON AFT SIDE. REMOVED AND REPLACED LIGHT ASSEMBLY IAW 33-51-05.

Part: POWER SUPPLY — INOPERATIVE (CABIN) · airframe 3,746 hrs · 443 cycles

DURING EMER LIGHTS TEST, FOUND ALL 3 EMER LIGHTS AT DOOR 5 RT INOPERATIVE. REPLACED IAW AMM 33-51-06. ALL LIGHTS OK FOR SERVICE. THE ACFT WAS NOT GNDED.

Part: COFFEEMAKER — ODOR (GALLEY) · airframe 3,504 hrs · 417 cycles

ACRID BURNING SMELL FROM CAPPUCCINO MACHINE. REPLACED CAPPUCCINO MACHINE IAW AMM 25-32-01. ALL OPERATIONS NOW GOOD. GOOD FOR SERVICE. ELEC CONNECTORS AT REAR ALL GOOD.

Part: LENS — MISSING (CABIN) · airframe 2,542 hrs · 303 cycles

EMERGENCY LIGHT LENS IS MISSING AT SEAT 9G. R & R THE LIGHT ASSEMBLY IAW ESO 21376. PERFORMED OPERATIONAL TEST IAW AMM 33-51-00. OK FOR SERVICE.

Part: LENS — MISSING (CABIN) · airframe 2,542 hrs · 303 cycles

EMERGENCY LIGHT LENS IS MISSING AT SEAT 12G. REPLACED THE LIGHT ASSEMBLY IAW ESO 21376. PERFORMED OPS TEST IAW AMM 33-51-00. OK FOR SERVICE.

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 647 hrs · 82 cycles

EMERGENCY LIGHT AT GALLEY G10 RT IS MISSING LENS. REPLACED LENS, OPERATIONAL CHECKED NORMAL IAW AMM 33-51-05.

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 647 hrs · 82 cycles

EMERGENCY LIGHT AT GALLEY G10 MISSING LENS. REPLACED LENS WITH NORMAL OPERATIONAL CHECK IAW AMM 33-51-05.

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 647 hrs · 82 cycles

EMERGENCY LIGHT LENS MISSING AT GALLEY G4 LT FWD AISLE. REPLACED LENS WITH NORMAL OPERATIONAL CHECK IAW AMM 33-51-05.

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 647 hrs · 82 cycles

EMERGENCY LIGHT AT LT GALLEY G6 MISSING LENS. REPLACED LENS WITH GOOD OPERATIONAL CHECK IAW AMM 33-51-05.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 647 hrs · 82 cycles

R1 DOOR EXTERIOR EMERGENCY LIGHT INOPERATIVE. REPLACED LIGHT IAW AMM 33-51-04 WITH GOOD OPERATIONAL CHECK.

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 647 hrs · 82 cycles

EMERGENCY LIGHT LENS MISSING IN AISLE AT LAVATORY 4F. REPLACED LENS WITH NORMAL OPERATIONAL CHECK IAW AMM 33-51-05.

Part: LENS — MISSING (EMERGENCY LIGHT) · airframe 647 hrs · 82 cycles

EMERGENCY LIGHT AT RT AFT GALLEY G6 IS MISSING LENS. REPLACED LENS & OPERATIONAL CHECKED NORMAL IAW AMM 33-51-05.

Part: CONNECTOR — LOOSE (CABIN) · airframe 11 hrs · 8 cycles

RIGHT EMER PATH LIGHTS INOPERATIVE BETWEEN SEAT ROWS 5G & 9G. FOUND CONNECTOR AT SEAT 10G LOOSE. RECONNECTED CONNECTOR & PERFORMED OPERATIONAL CHECK IAW AMM 33-51-05 & AMM 33-51-00. SYS CHECKED NORMAL.

Part: FITTING — CORRODED (LT WING) · airframe 29,449 hrs · 30,057 cycles

DURING C CHECK INSPECTION, FOUND CORROSION ON ATTACH FITTING. REPLACED FITTING PER MM 57-15-50.

Part: FITTING — CORRODED (LT WING) · corrosion level 2 · airframe 29,449 hrs · 30,057 cycles

DURING C CHECK INSPECTION AND MAIN LANDING GEAR TIME CHANGE, FOUND FACES OF RT MLG I/B STABILIZER AFT MOUNT FITTING CORRODED. REPLACED FITTING PER MM 57-15-0/SOPM 20-50-01 DWG 65-82770.

Part: ATTACH FITTING — CORRODED (FUSELAGE) · corrosion level 2 · airframe 29,449 hrs · 30,057 cycles

DURING C CHECK INSPECTION FOUND CORROSION ON BORE AND FACES OF BS 685 LUG, LT. REPAIRED PER EA 5310-01930.

Part: SKIN — CORRODED (FUSELAGE) · airframe 29,449 hrs · 30,057 cycles

DURING C CHECK INSPECTION, FOUND LEVEL 1 CORROSION ON SKIN. REPAIRED PER EA 5330-01517.

Part: SKIN — GOUGED (FUSELAGE) · airframe 29,449 hrs · 30,057 cycles

DURING C CHECK INSPECTION, FOUND FUSELAGE EXTERNAL SKIN GOUGED AT BS 890 STRINGER 21 LT. REPAIRED PER SRM 53-30-03 FIGURE 6.

Part: SKIN — GOUGED (FUSELAGE) · airframe 29,449 hrs · 30,057 cycles

DURING C CHECK INSPECTION, FOUND FUSELAGE EXTERNAL SKIN GOUGE BS 830 STRINGER 22 LT. REPAIRED PER SRM 53-30-03 FIGURE 6.

Part: LEAD — FAILED (CABIN) · airframe 29,209 hrs · 29,871 cycles

FLOOR TRACK LIGHTING - FORWARD CABIN INOP REPLACED FORWARD TRACE STRIP. OPS CHECKED OK FOUND OPEN IN ELECTRICAL CIRCUIT OF STRIP.

Part: ACTUATOR — FAILED (NLG) · airframe 29,074 hrs · 29,758 cycles

AIR TURNBACK DUE TO NOSE GEAR WOULD NOT RETRACT THIS IS A REPEAT EVENT THAT LAST HAPPENED 7 LANDINGS AGO. REPLACED NOSE GEAR LOCK MECHANISM AND SPRINGS, CONSISTING OF INDIVIDUAL ITEMS P/N 65-46245-4, 65-46242-11, 65-46240-13 & 69-6745-1, ALL WITH 1327 HOURS AND 1009 LANDINGS SINCE OVERHAUL. REPLACED HYDRAULIC TRANSFER CYCLINDER P/N 69-14106-7 WITH 10 HOURS AND 7 LANDINGS SINCE OVERHAUL. REPLACED LOCK ACTUATOR P/N 65-17819-14 WITH 1327 HOURS AND 1009 LANDINGS SINCE OVERHAUL. RE-RIGGED NOSE GEAR DOORS. PERFORMED NORMAL RETRACTION AND EXTENSION TESTS. PERFORMED EMERGENCY EXTENSION TEST. ALL TESTS NORMAL.

Part: HYDROMECH UNIT — MALFUNCTIONED (NLG) · airframe 29,064 hrs · 29,751 cycles

DEPARTING ANC NOSE GEAR WOULD NOT RETRACT - STAYED DOWN & LOCKED - TRIED TWICE WITH SAME RESULTS. RETURNED TO ANC LANDING WT 111.7 SMOOTH LANDING.ACCOMPLISHED OVERWEIGHT LANDING INSPECTION PER M/M 5-51-291. REPLACED NOSE GEAR HYD. MODULAR PACKAGE REF. MM 32-33-31. REPLACED NOSE GEAR ACT. FLOW RESTRICTOR REF. MM 32-00. REPLACED NG GRAVEL DEFLECTOR ACTU. REF. MM SUP. 32-23-22NOTE: MODULAR PACKAGE REPLACED TO CORRECT PROBLEM - RESTRICTOR AND ACTUATOR REPLACEMENT WERE PRECAUTIONARY.

Part: GEAR — OBSTRUCTED (NLG) · airframe 28,910 hrs · 29,621 cycles

AFTER TAKEOFF WITH GEAR HANDLE UP, NOSE GEAR GREEN LIGHT OUT AND RED GEAR LIGHT ILLUMINATED, CYCLED GEAR SAME INDICATION. RETURNED TO AIRPORT, NORMAL INDICATIONS AND LANDING. REMOVED ICE AND SNOW. REMOVED AND REPLACED NOSE GEAR TRAN CYLINDER, REF MM 32-33-41. CHECKED NOSE STRUT SERVICE PER W/C 1832017. CYCLED GEAR, INDICATION NORMAL. NOTE: THIS IS A GRAVEL EQUIPPED AIRCRAFT WITH A NOSE GEAR DEFLECTION SKI. ICE AND SNOW ON UPPER SKI SURFACE THE APPARENT CAUSE. REPLACEMENT OF TRANSFER CYCLINDER WAS FOR PRECAUTIONARY PURPOSES. (X)

Part: WIRE — SEVERED (CABIN) · airframe 28,740 hrs · 29,496 cycles

FWD TRACK LIGHT STRIP WORKS INTERMITTENTLY WHEN TESTED. FOUND SEVERED WIRE AND REPAIRED PER BSWR CHAP 20. OPS CK GOOD.

Part: LIGHT — DAMAGED (CABIN) · airframe 27,845 hrs · 28,816 cycles

SECTION OF TRACK LIGHTING JUST AFT OF OVERWING EMERGENCY EXITS INOPERATIVE. FOUND RIVET DEBRIS IN TRACK LIGHTING CHANNEL THAT DAMAGED THE TRACK LIGHTING ELECTRICAL CABLE TRACK ASSY. REPLACED SAME AND ASSOCIATED PARTS AND OPERATION CHECKED NORMAL. SOURCE OR HOW LONG RIVET DEBRIS WAS PRESENT IS UNKNOWN. IT WAS TRAPPED UNDER TRACK LIGHTING STRIP AND WAS NOT VISIBLE UNTIL SAME REMOVED. (X)

Part: LIGHT — INOPERATIVE (CABIN)

DURING CABIN PREFLIGHT, AFT SECTION OF TRACK LIGHTING INOPERATIVE. FOUND BROKEN PINS ON JUMPER STRIP FROM SIDE WALL. (M)

Part: OXYGEN HOSE — BROKEN (CABIN)

DURING A C-CHECK, MECHANICS FOUND 6 EACH OXYGEN HOSE ASSYS, P/N 417N3138-1 AND DASH 2 TORN AND/OR BROKEN. THE DAMAGED AREA OF THE HOSE WAS JUST DOWNSTREAM OF THE OXYGEN GENERATOR IN THE OVERHEAD PASSENGER SERVICE UNITS. THE HOSES MAY HAVE BEEN DAMAGED BY MAKING A HARD MECHANICAL CONTACT WITH AN ELECTRICAL PLUG THAT CAN BE MOUNTED IN THE PROXIMITY, WHEN THE PSU IS HINGED INTO PLACE. THERE WAS NO SUCH CONTACT WITH THE PLUGS FOUND AT THIS TIME. HOWEVER, AIRCRAFT PSU'S HAVE BEEN RELOCATED AT LEAST TWO TIMES DURING SEAT RELOCATION IN THE PAST. THE BOEING CO WAS INFORMED. THEY REFERRED TO SL 737-SL-35-009-A.

Part: OXYGEN HOSE — BROKEN (CABIN)

DURING A C-CHECK, MECHANICS FOUND 6 EACH OXYGEN HOSE ASSYS, P/N 417N3138-1 AND DASH 2 TORN AND/OR BROKEN. THE DAMAGED AREA OF THE HOSE WAS JUST DOWNSTREAM OF THE OXYGEN GENERATOR IN THE OVERHEAD PASSENGER SERVICE UNITS. THE HOSES MAY HAVE BEEN DAMAGED BY MAKING A HARD MECHANICAL CONTACT WITH AN ELECTRICAL PLUG THAT CAN BE MOUNTED IN THE PROXIMITY, WHEN THE PSU IS HINGED INTO PLACE. THERE WAS NO SUCH CONTACT WITH THE PLUGS FOUND AT THIS TIME. HOWEVER, AIRCRAFT PSU'S HAVE BEEN RELOCATED AT LEAST TWO TIMES DURING SEAT RELOCATION IN THE PAST. THE BOEING CO WAS INFORMED. THEY REFERRED TO SL 737-SL-35-009-A.