AVELO AIRLINES, INC.

Sanction: $8,000 · case closed 2025-04-08

Part: LIGHT — INOPERATIVE (ZONE 200) · airframe 46,537 hrs · 29,840 cycles

EXTERIOR EMERGENCY LIGHT AT L1 DOOR INOP. R & R EXTERIOR EMERGENCY LIGHT/SLIDE LIGHT  AT L1 DOOR IAW AMM 33-51-04-960-801. OPS CHECK GOOD. AC OK FOR SERVICE

Part: BATTERY PACK — DISCHARGED (ZONE 200) · airframe 59,480 hrs · 28,953 cycles

AREA LIGHTS AT SEAT 7 ABC, 9 DEF, 10 ABC, 21 ABC INOP. R & R BATTERY PACK AT POWER SUPPLY M2335 IAW AMM 33-51-06-960-805. OPS CHECK GOOD.

Part: LAMP — BURNED OUT (ZONE 200) · airframe 48,597 hrs · 32,155 cycles

DURING SERVICE CHECK FOUND L1 DOOR EXTERIOR EMERGENCY EXIT SLIDE LIGHT INOPERATIVE. REMOVED AND REPLACED L1 DOOR EXTERIOR SLIDE LIGHT LAMP IAW AMM 33-51-04. OPS CHECK GOOD. ACFT OK FOR SERVICE.

Part: ENGINE — FAILED (NR 2) · airframe 43,074 hrs · 27,656 cycles

NR 2 ENGINE FAILURE ON TAXI OUT, ENGINE WAS RUNNING NORMALLY, ALL INDICATIONS NORMAL. NO ABNORMAL SECONDARY INDICATIONS, ENGINE RUNNING FOR APPROXIMATLY 20MINUTES BEFORE FALLING. C/W ENGINE FLAME OUT FIM TASK 73-06 TASK 807 UP TO STEP E2B, NO RELATED FAULTS NOTED, ACCOMPLISHED HIGH POWER ENGINE RUN IAW AMM 71-00-00 NO FAULTS NOTED. AC OK FOR SERVICE.  ALL WORK PERFORMED BY FLIGHT CHECK AVIATION.

Part: ALTIMETER — FAULTED (ZONE 200)

ON TAKE OFF AT UPWIND IAS DISAGREE QRH 10.17 QRH 10.1 CAPT IAS INDICATOR SHOWING SLOW ON CRUISE ALTIMETERS DISAGREE AP+FD DISSENGAGED. FLUSHED PITOT STATIC SYSTEM IAW AMM 34-11-00-170-802, SYSTEMS OPERATIONAL CHECK IAW FIM 73-28 TASK 803 SATISFACTORY AT THIS TIME. ACFT OK FOR SERVICE

Part: POWER SUPPLY — FAILED (ZONE 200)

REF DMI# 391574 AISLE LIGHT AT SEAT 5DEF AND 10DEF INOP. R/R AREA LIGHT ASSY ON 5DEF AND 10DEF IAW AMM 33-51-03-960-802, ALSO R/R EMER POWER SUPPLY ASS (M1676) IAW AMM 33-51-06-960-806. OPS CHECK SATISFACTORY. THIS CLEARS MEL CONTROL # 391574, PLACARD REMOVED. A/C OK FOR SERVICE.

Part: BLEED VALVE — LEAKING (ZONE 400) · airframe 45,376 hrs · 28,511 cycles

ON DESCENT THROUGH LOWER ALTITUDES BELOW 12,000 FT CABIN HAS STRONG ENGINE OIL/ WET SOCK SMELL. PERFORMED FIM FOR SMOKE/FUMES IN CABIN IAW FIM 21-00 TASK 806 UP TO STEP F. (F). OIL SMELL ON HAPPENS WHEN RIGHT ENGINE BLEED IS THE SUPPLY FOR PNEUMATIC/PACK SYSTEM. FURTHER T/SHOOTING REQUIRED. REF W/O# 381678. REMOVED HIGH STAGE VALVE ON ENG 2 TO CHECK FOR OIL CONTAMINATION. NO OIL NOTED. USED BORESCOPE TO INSPECT 5TH STAGE VALVE FOR OIL CONTANIMATION. NO OIL NOTED.  REINSTALLED HIGH STAGE VALVE WORK DONE IAW AMM 36-11-06/401.INSTALL TEST GOOD.  NO DEFECTS NOTED AT THIS TIME. A/C OK FOR SERVICE

Part: POWER SUPPLY — INOPERATIVE (ZONE 200) · airframe 44,141 hrs · 27,734 cycles

EMERGENCY EXIT SLIDE LIGHT FORWARD OF L2 DOOR INOPERATIVE. R & R EMERGENCY EXIT SLIDE LIGHT BULB. IAW AMM 33-51-04-960-801. OPS CHECK FAILED. SUSPECT SOCKET. PLACING AIRCRAFT ON MEL 33-14-01 CAT B, MCC NOTIFIED (BM). NO NIGHTTIME OPERATIONS ALLOWED. POODMIE REMAINS OPEN, A/C OKAY FOR SERVICE. EMERGENCY EXIT SLIDE LIGHT FORWARD OF L2 DOOR INOP. R/R POWER SUPPLY AND BATTERY PACK ASSY FROM POSITION M1670 IAW AMM 33-51-06/201. OPS CHECK GOOD. NO FURTHER FAULTS NOTED. THIS CLEARS DMI 375220. A/C OK FOR SERVICE.

Part: UNKNOWN — VAPOR (ZONE 200) · airframe 42,271 hrs · 27,296 cycles

DURING DESCENT BELOW 18,000 FT TO ABOUT 5000FT STRONG SMOKE SMELL WITH LIGHT VAPOR IN FLIGHT DECK. PERFORMED FIM TASK 21-00 TASK 806, SMOKE AND FUMES IN THE CABIN FAULTS ISOLATION, NO FUMES OR SMOKE APPEAR, ACFT OK FOR SERVICE.

Part: BATTERY — DISCHARGED (ZONE 200) · airframe 43,935 hrs · 27,650 cycles

WHILE PERFORMING SERVICE CHECK FOUND LH EMERGENCY EXIT SIDE LAMP OUT. R & R LAMP IAW AMM 33-51-04-960-801, NO HELP, SUSPECT POWER SUPPLY. FURTHER T/S REQ. R & R POWER SUPPLY BATTERY PACK AND CHARGER ASSY, UNIT M2335, IAW AMM 33-51-06-960-806, OPS CHECK GOOD, NO FURTHER FAULTS NOTED, A/C OK FOR SERVICE.

Part: LIGHT — INOPERATIVE (ZONE 200) · airframe 50,604 hrs · 29,823 cycles

FOUND AFT RT EMERGENCY EXIT SLIDE LIGHT INOPERATIVE. R & R AFT RT EMERGENCY EXIT SLIDE LIGHT IAW AMM 33-51-04-960-801. A/C OK FOR SERVICE.

Part: CHARGER — FAULTED (ZONE 200) · airframe 38,108 hrs · 18,788 cycles

DURING TRANSIT CHECK FOUND LH OVERWING EXIT LIGHT TO BE INOP. REMOVED AND REPLACED EMERGENCY BATTERY CHARGER AND BATTERY IAW AMM 33-51-06-960.

Part: LAMP — INOPERATIVE (ZONE 200) · airframe 50,010 hrs · 18,432 cycles

ON SERVICE CHECK FOUND LH AFT EMERGENCY EXIT DOOR LAMP INOPERATIVE. R & R LH AFT EMERGENCY EXIT DOOR LAMP IAW AMM 33-51-04. OPS CHECK NORMAL

Part: WINDSHIELD — ARCED (ZONE 200) · airframe 64,000 hrs · 33,807 cycles

R1 WINDOW CRACKED AT CRUZE COMPLIED WITH QRH . REMOVED R1 WINDOW IAW AMM 56-11-11-000-801. A/C OUT OF SERVICE. AOG INSTALLED R1 WINDOW IAW AMM 56-11-11-400-801. CABIN PRESSURE TEST GOOD. A/C OK FOR SERVICE.

Part: POWER SUPPLY — INOPERATIVE (ZONE 200) · airframe 63,950 hrs · 33,781 cycles

DURING SERVICE CHECK, FOUND EXTERIOR OVERWING ESCAPE GROUND ILLUMINATION LIGHT AT STA 757 ON BOTH SIDES INOP. R & R POWER SUPPLY AT STA 727 C+13, M1670 IAW AMM 33-51-06-960-806. OPS CHECK GOOD, A/C OKAY FOR SERVICE. R & R BATTERY PACK AT STA 727 C+13 , M1670 IAW AMM 33-51-06-960-805. OPS CHECK GOOD, A/C OKAY FOR SERVICE.

Part: CHARGER — INOPERATIVE (ZONE 200) · airframe 63,950 hrs · 33,781 cycles

DURING SERVICE CHECK, FOUND INTERIOR EMERGENCY AERA LIGHT AT ROW 23ABC AND 26ABC INOP. R & R EMERGENCY LIGHT AT ROW 23ABC AND 26ABC IAW AMM 33-51-03-960-801. NO HELP. INSTALLED OLD LAMP BACK. SUSPECT AREA LIGHT ASSEMBLY FAULT. PLACING ITEM ON MEL 33-15-01 CAT C. T/S EMERGENCY AISLE LIGHTS IAW WDM 33-51-13 PG 2 AND SUSPECT FAULTY WIRE BUNDLE AT BATT PACK M1670 CONNECTOR D10716 TO AISLE LIGHT ASSY AT ROWS 23ABC AND 26 ABC. DMI REMAINS OPEN. REMOVED AREA LIGHT ASSY FROM 24FED AND SWAPED INTO BROKEN LIGHT ASSY 23ABC. PLUGGED IN NEW CHARGER ASSY INTO LOCATION M01670. OPS CHECK FAIL. REMOVED CHARGER ASSY FROM M01668 AND PLUGGED IN TO LOCATION M01670. LAMPS 23 AND 26ABC OPS CHECK PASS. RETURNED CHARGER ASSYS TO ORIGINAL LOCATIONS AND LIGHT ASSY TO ORIGNIAL LOCATION. NEW CHARGER ASSY REQUIRED SN 131190 BAD FROM STOCK. DO NOT INSTALL NEW CHARGER ASSY M01670 UNTIL AREA LIGHT ASSY 23ABC HAS BEEN REPLACED ALL WORK DONE IAW WDM 33-51-13, 33-51-22 AND AMM 33-51-03, 33-51-06.

Part: CHARGER — INOPERATIVE (ZONE 200) · airframe 27,470 hrs · 43,502 cycles

DURING SERVICE CHECK FOUND AREA LIGHTS INOP AT 23DEF, 24ABC, 27ABC. R & R CHARGER ASSY M1670 IAW AMM 33-51-06-960-806. OPS CHECK GOOD. THIS CLEARS DMI # 353958. A/C OK FOR SERVICE

Part: BATTERY PACK — DISCHARGED (ZONE 200) · airframe 61,307 hrs · 31,296 cycles

RH AFT OVERWING EMERGENCY LIGHT (SLIDE LIGHT) INOPERATIVE. R & R POWER SUPPLY M1671 IAW AMM 33-51-06-960-806. SEE LOG PAGE 144200 FOR BATTERY REPLACEMENT AND OPS CHECK.. INSTALLED BATTERY IN M1617 POWER SUPPLY IAW AMM 33-51-06-960-805. R & R AFT OVERWING SLIDE LIGHT LAMP AND SOCKET IAW AMM 33-51-04-960-801. OPS CHECK GOOD. ACFT OK FOR SERVICE.

Part: LIGHT — INOPERATIVE (ZONE 200) · airframe 37,622 hrs · 18,520 cycles

DURING SURVICE CHECK FOUND RH OVERWING FWD EMERGENCY LIGHT OUT. R & R RH OVERWING FWD EMERGENCY LIGHT IAW 33-51-04-960-801. OPS CHECK GOOD. A/C OK FOR SERVICE.

Part: GIRT BAR — IMPROPER STOW (ZONE 800)

MAINTENANCE CONTROL REQUESTS RE INSPECTION OF THE L1 DOOR GIRT BAR INSTALLATION. PLEASE CHECK FOR PROPER L1 DOOR GIRT BAR INSTALLATION PER AMM 25-66-01 STEP E, STEP E AND F. MAKE SURE THE GIRT BAR DOES NOT MAKE CONTACT WITH THE DOOR FRAME WHEN OPENING THE DOOR. INSPECTED L1 DOOR GIRT BAR IAW B737 AMM 25-66-01. NO DEFECTS NOTED AT THIS TIME

Part: LIGHT — DAMAGED (ZONE 200) · airframe 41,156 hrs · 26,734 cycles

DURING WALKAROUND FOUND SEAT 20 DEF EMERGENCY LIGHT INOPERATIVE. R/R LIGHT SUBASSY ON SEAT 20 DEF EMERGENCY LIGHT DUE TO RECURRING LAMP REPLACEMENT IAW AMM 33-21-00 OPS CHECK GOOD A/C OK FOR SERVICE

Part: WINDOW — DELAMINATED (ZONE 200) · airframe 49,650 hrs · 18,234 cycles

AT 38000, L3 WINDOW DELAMINATED + SEPERATED FROM THE INNER PANE. REMOVED AND REPLACED L3 WINDOW PER AMM 56-11-21. LEAK CHK GOOD.

Part: LAMP — BURNED OUT (ZONE 200) · airframe 59,004 hrs · 31,253 cycles

DURING SERVICE CHECK FOUND OVERHEAD EMERGENCY LIGHTS IN ROW 7CBA + ROW 9FED INOP. R&R LAMPS FOR EMERGENCY LIGHTS IN ROW 7CBA + ROW 9FED IAW AMM 33-51-03-960-801. OPS CHECK GOOD. A/C OK FOR SERVICE.

Part: BATTERY PACK — NO TEST (ZONE 200) · airframe 64,330 hrs · 38,156 cycles

WHILE PERFORMING EMERGENCY BATTERY PACK CAPACITY FUNCTIONAL CHECK, EMERGENCY LIGHT BATTERY PACKS AT LOCATION M1674, M1675, M1668, M1669, M1670, 1673, AND M1672 FAILED CAPACITY TEST. REMOVED AND REPLACED BATTERY PACKS AT LOCATION M1674, M1675, M1668, M1669, M1670, 1673, AND M1672. OPS CHECK SATISFACTORY. ALL WORK DONE IAW AMM 33-51-06-200-801. BATTERY PACK REMOVED ARE AS FOLLOW, PART NO. D717-01-100SWA, SERIAL NO. 24189, AND PART NO. D717-01-100SMI, SERIAL NO. 12017, 41328, 43781, 33165, 10515, AND WN0786

Part: BATTERY PACK — FAULTED (ZONE 200) · airframe 60,639 hrs · 30,917 cycles

NOTED R1 DOOR EMERGENCY EXIT LIGHT INOP. FOUND POWER SUPPLY TO BE FAULTY. R/R EMERGENCY EXIT LIGHT POWER SUPPLY IAW AMM 33-51-06-960-806. SEE SUBSEQUENT ACTION FOR R/R OF BATTER AND OPS CHECK. CHARGER LOCATION M1674. R/R BATTERY PACK ASSY ON POWER SUPPLY IAW AMM 33-51-06-960-805. R/R LIGHT BULB ON R1 DOOR EMERGENCY LIGHT IAW AMM 33-51-04-960-801. OPS CHECK GOOD. A/C OK FOR SERVICE.

Part: BATTERY PACK — INOPERATIVE (ZONE 200) · airframe 43,752 hrs · 27,864 cycles

DURING SERVICE CHECK FOUND EMREGENCY AISLE LIGHTS ROW 9 ABC AND ROW 12 ABC INOP. R/R EMERGENCY POWER SUPPLY/BATTERY PACK IAW AMM 33-51-06/201 A/C OK FOR SERVICE POS M2335

Part: LAMP — BURNED OUT (ZONE 200) · airframe 41,123 hrs · 19,124 cycles

DURING SERVICE CHECK FOUND FWD LH EMERGENCY SLIDE LIGHT INOP. R/R LH FWD SLIDE LIGHT LAMP P/N 767, IAW AMM 35-51-04-960-801 OPS CHECK GOOD A/C OK FOR SERVICE.

Part: LAMP — BURNED OUT (ZONE 200) · airframe 42,395 hrs · 27,025 cycles

FOUND 26 DEF EMERGENCY LIGHT - AREA LIGHT INOP. R/R 26 DEF EMERGENCY LIGHT - AREA LIGHT LAMP IAW B737 AMM 33-51-03-960-801. OPS CHECK GOOD. A/C OK FOR SERVICE

Part: PRESSURE VALVE — SEIZED (NR 2 ENGINE) · airframe 58,482 hrs · 30,977 cycles

PILOT REPORTED RT BLEED DUCT PSI ON LOW END, 10PSI & DESCENDED EARLY FROM 41K FT TO 29K FT. DURING DECSENT, CABIN ALT WARN ILLUM AT APPROX 35K FT. ONCE DECENT PROFILE CAPTURED, ENGS REDUCED TO IDLE & RT PACK DUCT PRESS DROPPED. CABIN PRESS CLIMB TO 14K FT, PILOT DROPPED O2 MASKS, CLOSED OUTFLOW VALVE & DECLARED AN EMER DECSENT TO 10K FT. AT 2K-3K, PILOT OPENED OUTFLOW VALVE & LANDED. PROBLEM IDENTIFIED AS A FAILED PRSOV & BLEED AIR REGULATOR ON NR 2 ENG CAUSING LOW BLEED PRESS. R & R NR 2 ENG PRSOV IAW AMM 36-11-04, OPS & LK CHKD GOOD, R & R NR 2 ENG BLEED REGULATOR IAW AMM 36-11-03. OPS & LK CHKD GOOD. PERFORMED PACK DUCT PRESS CHK IAW AMM 21-00-05. DUCT PRESS IN LIMITS. NO DEFECTS. OK FOR SERVICE.

Part: POWER SUPPLY — UNKNOWN (ZONE 200) · airframe 42,996 hrs · 28,161 cycles

DURING SERVICE CHECK, FOUND 30ABC, 32/33ABC, 34DEF AREA LIGHTS INOP. R/R 30ABC, 32/33ABC, 34DEF AREA LIGHTS IAW B737 AMM 33-51-03-960-801. OPS CHECK NOT GOOD. TROUBLESHOT WITH FIM 33-50 TASK 801, (I)(2)(C)(1) LIGHT ASSEMBLY REPLACEMENT 34DEF IAW B737 AMM TASK 33-51-03-960-802. OPS CHECK NOT GOOD. PLACING ITEM ON MEL 33-02-01, CAT C. SUSPECT FAULTY WIRING. MORE TROUBLESHOOTING REQ. MCC BM 117267 NOTIFIED. DMI REMAINS OPEN. A/C OK FOR SERVICE. RECLASSIFIED MEL FROM 33-02-01 TO 33-15-01 MX CONT AF 545830. REF WO# 296381 FOR FURTHER TROUBLE SHOOTING. THIS CLEARS DMI 295818. REF WO# 295818 RECLASSIFYING MEL FROM 33-02-01 TO MEL 33-15-01 CAT C DMI 296381 DATE OF DESCOVERY REMAINS THE SAME. MX CONT AF 545830. SWAPPED AFT POWER SUPLY FROM LOCATION M1673 WITH POWER SUPLY M2335 IAW AMM 33-51-06-960-806 &SSM 33-51-14, IN ORDER TO CONFORM WITH MEL REQUIREMENTS. AC OK FOR SERVICE. THIS DMI REMAINS OPEN.

Part: MOUNT BRACKET — BROKEN (ZONE 200) · airframe 40,849 hrs · 19,011 cycles

DURING SERVICE CHECK NOTED AFT EXIT LIGHT CALL LIGHT LENS COVER MOUNT BRACKET DAMAGED R/R AFT EXIT LIGHT ASSY IAW AMM 33-51-01-960-802. OPS CHECK GOOD THIS CLEARS DMI # 291539, PLACARD REMOVED.

Part: LAMP — BURNED OUT (ZONE 100) · airframe 36,784 hrs · 18,155 cycles

NOTED ON SERVICE CHECK EXTERRIOR SLIDE EMERGENCY LIGHT NEXT TO L2 DOOR INOP. R/R SLIDE LIGHT NEAR L2 DOOR IAW AMM 33-51-04-960-801. OPS CHECK FAIL. T/S NEEDED. PLACING SLIDE LIGHT NEAR L2 DOOR ON MEL 33-14-01 CAT B. MCC NOTIFIED LL 950322.DMI #292145  A/C OK FOR SERVICE. REMOVED AND REPLACED LAMP IAW AMM TASK 33-51-04-960-801. OPS CHECK SATISFACTORY. THIS CLEARS DMI # 292145. LOCATION OF LAMP IS EXTERIOR OF L2 DOOR.

Part: LAMP — BURNED OUT (ZONE 200) · airframe 43,022 hrs · 27,567 cycles

FOUND EMERGENCY, AREA LIGHT LAMP INOP. AT SEAT 5DEF. R/R EMERGENCY AREA LIGHT LAMP IAW AMM 33-51-03-960-801. OPS CHECK GOOD. A/C OK FOR SERVICE. LIGHT AT SEAT LOCATION 5 DEF.

Part: PRESSURE SWITCH — FAULTED (APU OIL SYSTEM) · airframe 42,349 hrs · 27,877 cycles

PERFORMED BITE TEST ON APU IAW FIM 49-90 TASK 803. FAULT WAS OIL PRESSURE SHUT DOWN, SERVICED OIL IAW AMM 12-13-31. AND REPLACED LOW OIL PRESSURE SWITCH IAW AMM 49-94-22-000-801, OPS CHECK GOOD. A/C OK FOR SERVICED. ENGINE #1 GENERATOR WILL NOT COME ONLINE. PLACING #1 IDG ON MEL 24-01-01, CAT B, DUE 12/25/24, DMI #267157 AS PER MCC RB (M) PROCEDURES COMPLIED WITH. A/C OK FOR SVC. REMOVED AND REPLACED #1 ENGINE IDG IAW AMM 24-11-11. PERFORMED #1 IDG INSTALLATION TEST IAW AMM 24-11-00. OPS TEST GOOD. NO DEFECTS NOTED. A/C OK FOR SERVICE.

Part: SKIN — DAMAGED (ZONE 200) · airframe 41,718 hrs · 26,753 cycles

FOUND DENT/GOUGE 10.75IN AFT R1 DOOR AND 9.5 IN BELOW R1 DOOR FLOOR LINE AT WIDTH 0.5725IN AND LENGTH 0.279IN, DEPTH 0.044IN BETWEEN 2 RIVETS. BS 342.2. FOUND GOUGE ON RIVETE LINE 9.5IN BELOW FLOOR LINE R1 DOOR AND 11 IN AFT OF R1 DOOR LINE AT 0.8925IN AND 0.1750. BS 342. FOUND GOUGED DENT AT AREA 11.25 INCHES AFT R1 DOOR LINE AND 5 INCHES BELOW R1 DOOR LINE WITH DENT SIZE 0.578IN WIDTH AND 0.511 INCHES LENGTH WITH GOUGE DEPTH OF 0.023. BS 343.7. PERFORMED TEMPORY REPAIR IAW EA 53-24-36 REV 0. A/C OK FOR SERVICE.

Part: SKIN — CORRODED (ZONE 100) · airframe 63,281 hrs · 37,432 cycles

DURING A HEAVY CHECK MAINTENANCE VISIT OF A N708VL AIRCRAFT, A CORROSION WAS FOUND ON THE FUSELAGE SKIN BETWEEN STA 847.00 TO STA 867, S-24L TO S-25L LOCATIONS. THE DAMAGE WAS BLENDED OUT AS PER SRM, AND THE CONDITION WAS RULED OUT OF LIMITS SINCE THE REMAINING THICKNESS EXCEEDED THE ALLOWABLE LIMITS. AS A RESULT, THE MRO PROPOSED TO PERFORM THE DAMAGE REPAIR BY TRIMMING THE AFFECTED ZONE, INSTALLING A REPAIR DOUBLER AND TRIPLER. AFTER EVALUATING THE MRO'S REQUEST, BOEING PROVIDED ADDITIONAL REPAIR INSTRUCTIONS WITH A REPAIR AND DEVIATION RECORD TO INDICATE THAT THE PROPOSED REPAIR PLAN IS ACCEPTABLE. BOEING HAS ISSUED AN 8100-9 FORM INDICATING A FIRST STAGE APPROVAL OF THIS REPAIR DATA UNDER REF /C/ SERVICE REQUEST. THIS EFFORT INCLUDES INCORPORATING FINAL STAGE APPROVAL INTO THE MAINTENANCE PROGRAM WITHIN 24 MONTHS FROM THE DATE OF THE FIRST STAGE APPROVAL (I.E. 10-09-2024). THE DAMAGED PART IS NOT CONSIDERED TO BE A WINGLET-AFFECTED STRUCTURE PER APB REPORT AP37.1-0321. THEREFORE, NO FURTHER COORDINATION BETWEEN BOEING/APB WAS REQUIRED. THE GUIDELINES PROVIDED IN BOEING SERVICE LETTER 737-SL-51-041 SHOW THAT THIS REPAIR CAN BE CONSIDERED A MAJOR REPAIR. IN ADDITION, THIS EFFORT DOES INFRINGE ON AN AD 2013-19-23. THEREFORE, IT IS CONSIDERED AS A MAJOR CHANGE. REPAIRED PER AVELO ENGINEERING AUTHORIZATION #53-24-22 REV.00

Part: CHARGER — INOPERATIVE (ZONE 200) · airframe 42,434 hrs · 27,304 cycles

FOUND M1671 BATTERY POWER SUPPLY INOP. UNABLE TO CHARGE BATTERY. REMOVED & REPLACED POWER SUPPLY IAW AMM 33-51-06-960-806. OPS CHECK GOOD.

Part: CHARGER — FAILED (ZONE 200) · airframe 41,093 hrs · 26,495 cycles

ON SERVICE CHECK NOTED EMERGENCY LIGHT POWER SUPPLY  M1671 AT STA 727C INOPERATIVE. R/R EMERGENCY LIGHT POWER SUPPLY IAW AMM 33-51-06-960-806. SEE LOG PAGE 132723 ITEM 1 FOR OPS CHECK AND BATTERY INSTALL

Part: LENS — MISSING (ZONE 200) · airframe 52,138 hrs · 34,407 cycles

FOUND EMERGENCY LIGHT LENS COVER MISSING AT 34 DEF. INSTALLED LENS COVER IAW AMM 33-51-03.

Part: LAMP — BURNED OUT (ZONE 200) · airframe 48,176 hrs · 17,407 cycles

LEFT HAND AFT BODY EMERGENCEY LIGHT OUT ON THE BOTTOM OF AIRCRAFT. R&R EMERGENCY SLIDE OVERWING LIGHT PER AMM 33-50-04 OPS CHECK GOOD OK FOR SERVICE

Part: BATTERY PACK — DISCHARGED (ZONE 200) · airframe 52,076 hrs · 34,377 cycles

DURING EMER LIGHT OPS CHECK, LT HAND FWD OVERWING DOOR EMERGENCY LIGHT WOULD NOT STAY ON. REMOVED AND REPLACED LH MID EMERGENCY BATTERY PACK IAW AMM 33-51-06 OPS CHECK GOOD

Part: LAMP — INOPERATIVE (ZONE 200) · airframe 57,361 hrs · 29,619 cycles

R/H EMERGENCY SLIDE/OVERWING LAMP INOP. TROUBLESHOT BY REPLACING THE LAMP BUT FAULT STILL REMAINED. FURTHER INVESTIGATION SUSPECTED THE WHOLE LIGHT ASSY . PART IS ON ORDER, THEN PLACED ON MEL 33-14-01. CAT B, MCC NOTIFIED (LL 950322) SLAVED IN EMERGENCY SLIDE/OVERWING LAMP ASSY R/H BUT PROBLEM STILL EXISTS, NO FIX. SWITCHED EMERGENCY LIGHT BATTERY AS PART OF FURTHER TROUBLESHOOTING, STILL NO FIX. ALL WORK DONE IN REF WITH B737 AMM 33-51-04. TROUBLESHOOTING CONTINUES AND MEL 33-14-01, CATB STILL REMAINS OPEN.

Part: LAMP — INOPERATIVE (ZONE 200) · airframe 57,361 hrs · 29,619 cycles

L/H EMERGENCY SLIDE/OVERWING LAMP INOP, TROUBLESHOOT BY REPLACING LAMP, LAMP COMES ON AND GOES OFF. NOT PARTIAL CONTACT, SUSPECT LIGHT ASSY. PART ON ORDER. PLACED ON MEL 33-14-01 CAT "B". MCC LL 950322 NOTIFIED.SLAVED IN EMERGENCY SLIDE/OVERWING LAMP ASSY L/H BUT PROBLEM STILL EXISTS, NO FIX. SWITCHED EMERGENCY LIGHT BATTERY AS PART OF FURTHER TROUBLESHOOTING, STILL NO FIX. ALL WORK DONE IN REF WITH B737 AMM 33-51-04. TROUBLESHOOTING CONTINUES AND MEL 33-14-01, CATB STILL REMAINS OPEN.

Part: POWER SUPPLY — FAULTED (ZONE 200) · airframe 48,041 hrs · 17,326 cycles

UPON SHUTDOWN OF A/C 4 R/H AFT EMERGENCY AREA LIGHTS STAY ILLUMINATED. R&R POWER SUPPLY CHARGER ASSY POS. AFT R/H SIDEWALL M1671 LOCATION IAW AMM 33-51-06. OP CHECK GOOD AT THIS TIME

Part: BATTERY PACK — FAULTED (ZONE 200) · airframe 48,032 hrs · 17,320 cycles

UPON SHUT DOWN OF A/C 4 R/H AFT EMERGENCY AREA LIGHTS STAYED ILLUMINATED. R&R POWER SUPPLY BATTERY PACK POS. AFT R/H SIDEWALL M1671 LOCATION IAW AMM 33-51-06. OP CHECK GOOD AT THIS TIME

Part: LAMP — BURNED (ZONE 200) · airframe 40,715 hrs · 26,309 cycles

UPON SERVICE CHECK EMERGENCY AISLE LIGHT LAMP INOP ROW 23,26

Part: CHARGER — INOPERATIVE (ZONE 200) · airframe 34,704 hrs · 17,740 cycles

EXTERIOR R2 DOOR EMERGENCY LIGHT INOP

Part: BULB — NO TEST (ZONE 200) · airframe 56,996 hrs · 30,170 cycles

DURING SERVICE CHECK FOUND ROW 7 ABC EMERGENCY LIGHT INOP

Part: BULB — NO TEST (ZONE 200) · airframe 56,996 hrs · 30,170 cycles

DURING SERVICE CHECK FOUND ROW 26 ABC EMERGENCY LIGHT INOP

Part: BULB — NO TEST (ZONE 200) · airframe 56,996 hrs · 30,170 cycles

DURING SERVICE CHECK FOUND ROW 24 ABC EMERGENCY LIGHT INOP