N68802

Boeing 737 Serious injury Part 121 — UNITED AIRLINES, INC.

Operated by United Airlines (per NTSB report)

ATA 3350

Part: CHARGER — FAULTED (ZONE 200) · airframe 39,589 hrs · 14,477 cycles

EMERGENCY LIGHTS ON FIRST CLASS SEATS DO NOT TURN ON. REPLACED POWER SUPPLY ASSEMBLY REF AMM 33-51-06. OPS CHECK GOOD.

ATA 3260

Part: LANDING GEAR — FALSE INDICATION (ZONE 700) · airframe 39,316 hrs · 14,363 cycles

GEAR SHOWED NOT UP RAN CHECKLIST GEAR RAISED RTB CREW DEBRIEF: THE LANDING GEAR OPERATED NORMAL AFTER THE MANUAL EXT DOOR WAS CLOSED. ALL INDICATION OPERATED NORMAL. PLEASE ACCOMPLISH AMM 32-34-00-820-802. MANUAL EXT SYS OPS CHECK TASK 32-34-00-730-802 NOT REQUIRED ACCOMPLISHED AMM TASK TASK 32-34-00-820-802, THE ALTERNATE LANDING GEAR TEST: LANDING GEAR SELECTOR VALVE INSTALLATION, TASK 32-31-51-400-801 OPS CHECKED NORMAL.

ATA 2150

Part: ECS — CONTAMINATED (ZONE 100) · airframe 39,221 hrs · 14,323 cycles

DURING TAKEOFF ROLL A BRIEF MOMENT OF FUMES ODORS OCCURED FOR 2 MINUTES. PER FIM 71-05 TASK 807 VERIFIED NO ENGINE OIL OVERSERVICED CONDITION OCCURED. PERFOMRED TASK 21-00-01-100-801 OIL CONTAMINATION REMOVAL FROM AIR CONDITIONING AND PNEUMATIC SYSTEMS VERFIED NO SMOKE OR ODOR IN CABIN DURING ENGINE IDLE RUN ALSO REMOVED AND REPLACED BOTH REIRCURCULATION FILTERS IAW AMM TASK 21-25-01-000-801 AS PRECAUTIONARY.

ATA 3397

Part: WIRE — CHAFED (ZONE 200) · airframe 38,675 hrs · 14,111 cycles

OPERATIONAL CHECK OF EMERGENCY LIGHTS, ROW 2 AB FWD EMERGENCY LIGHT INOPERATIVE, CHAFED WIRE. REMOVED AND REPLACED EPL IAW DWG 998525, AND CMM 25-23-52, OPS CHKD GOOD.

ATA 5330

Part: SKIN — DENTED (STA787-807) · airframe 37,648 hrs · 13,661 cycles

ACCOMPLISH PERMANENT REPAIR AS PER EC/RA 5360-01922 PART 3 AT SEC 46 FUSELAGE SKIN STA 800 BETWEEN S-25R AND S-27R. ACCOMPLISHED PERMANENT REPAIR CATEGORY B AT FUSELAGE SKIN BETWEEN BSTA 787 AND BSTA 807 AND BETWEEN STR-25R AND STR-27L IAW EC/RA 5331-03170, PART 1.

ATA 3350

Part: FUSE — INOPERATIVE (ZONE 200) · airframe 37,087 hrs · 13,452 cycles

F/C ALL SEAT EMERGENCY EXIT MARKER LIGHTS. INOP. REPLACED FUSE IN FORWARD EMERGENCY LIGHT POWER SUPPLY/BATTERY PACK, IN FORWARD GALLEY OVERHEAD. ALL EMERGENCY LIGHTS OPS CHECK GOOD. REF. WDM 33-51--12

ATA 3510

Part: BOTTLE — LEAKING (CAPT SIDE) · airframe 30,884 hrs · 11,086 cycles

OXYGEN LEAKED TO ZERO AFTER T/O. 145-0 10 MIN SOUND WAS BELOW C OCKPIT UPDATED MAA CODE FIX USING VENDOR MAA SCREEN UPDATED MAA CODE FIX USING VENDOR MAA SCREEN MAC METER INITIATED FOR WITH VENDOR ID V944262 PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. EVALUATE AND PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. EVALUATE AND MAC RELATED WORK ORDER 000000003071452 AND PRTR CONTACT TOMC CONTACT TOMC REPLACED O2 BOTTLE IAW AMM 12-15-21-600-801 , INSPECTED ALL MASKS AND ACCESSIBLE FITTINGS INCLUDING MASK BOX CONNECTION FOR LEAKS, FOUND MINOR LEAK AT CAPTS MASK, UNPLUGGED AND REINSTALLED CAPT MASK AND NO LEAKS. SUSPECT LEAK WAS FROM OBSERVERS MASK BUT NO SIGNIFICANT LEAKS SINCE REPLACING BOTTLE. REPLACED O2 BOTTLE IAW AMM 12-15-21-600-801 , INSPECTED ALL NO SIGNIFICANT LEAKS SINCE REPLACING BOTTLE. MASKS AND ACCESSIBLE FITTINGS INCLUDING MASK BOX CONNECTION FOR ROTABLE PARTS CHANGE WAS INDICATED - TT # 1152241 SN OFF 0713 LEAKS, FOUND MINOR LEAK AT CAPTS MASK, UNPLUGGED AND REINSTALLED CAPT MASK AND NO LEAKS. SUSPECT LEAK WAS FROM OBSERVERS MASK BUT ADD EMP:V944262 BOTTLE, OXY, CR OFF 64-3511-9-0001 0713 ON 64-3511-9-0001 1481

ATA 2700

Part: TRANSITION PANEL — UNKNOWN (LH SIDE) · airframe 30,832 hrs · 11,065 cycles

FLAPS STUCK AT 25 ON APPROACH WILL NOT EXTEND FURTHER OR RETRACT. DUE PREV HISTORY NEEDS TO REPLACE LEFT FLAP POSITION TRANSMITTER. FLAP SLAT ELEC UNIT SHOWS FAULT MESSAGE CODE 27- 52259, TE FLAP SENSOR L, ACCOMPLISHED FIM TASK 27-51 TASK 813, PERFORMED VISUAL INSPECTION OF ALL FLAP MECHANISM NO DAMAGE FOUND, AS PER FIM STEP F(1) TO F(1)(E), FLAP INDICATOR TEST PASSED. SKEW TEST ADD EMP:U332357 REMOVED/REPLACED LEFT FLAP POSITION TRANSMITTER PER AMM 27-58-01. PERFORMED OPERATIONAL TEST OK AND SEVERAL CYCLES WORKING GOOD FOR SERVICE. PARTS USED: 59-2758-9-0001,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1284907 SN OFF 1185 ACCOMPLISHED INSPECTION CK OF R&R OF LH FLAP POS TRANSDUCER. ALL TEST PASSED AS PER AMM. ALL SAFETY DEVICES REMOVED AND STOWED PROPERLY. ACFT BACK TO NORMAL CONFIGURATION. TRANSMITTER, FL OFF 59-2758-9-0001 1185 ON 59-2758-9-0001 1249

ATA 5700

Part: DOUBLER — DAMAGED (RIGHT WING) · airframe 30,427 hrs · 10,901 cycles

HIT RIGHT WING TIP ATTACHED PHOTO. REMOVED SPLIT SCIMITAR WINGLET IAW AMM 57-31-02/401 PERFORMED ROTABLE PARTS CHANGE INFO. WINGLET VENTRAL STRIKE VISUAL INSPECTION IN REFERENCE TO TASK ROTABLE PARTS CHANGE WAS INDICATED - TT # 1765421 SN OFF 4795 05-51-38-200-801-C1 INSPECTION GOOD AT THIS TIME ADD EMP:U388036,U396507 WINGLETS, VENTR OFF 29-5700-9-0007 4795 ON 29-5700-9-0007 8030 INSTALLED STRAKE IAW AMM 57-31-02-400-801-C4. OK TO COTINUE REF L/P 3757046 FOR SEALANT OF STRAKE. ADD EMP:U190186,U349116

ATA 2150

Part: CONTROL VALVE — INOPERATIVE (RT PACK) · airframe 28,543 hrs · 10,245 cycles

RT PACK BLOWING HOT AIR CABIN EXTREMELY HOT. A/C RETURNED TO FIELD. REPORTEDBY U335070 EICHELBAUM, ROBBIE SELEY, ALAN (V937165) DEFERRING R PACK PER MEL. DDG COMPLIED POSITION. WITH. DISPATCH DESK: 3301 NAME: G.P. DATE: 29-MAY-22- NOC, DESK: B737 NAME: KING, DATE: 29-MAY-22- DEFERRED DIRECTLY BY TOMC UPDATED MAA CODE FIX USING VENDOR MAA SCREEN MAC METER INITIATED FOR WITH VENDOR ID V937165 MARKING DELAY WHEN CLEARING THIS DEFERRAL PLEASE ALSO CLEAR PLA 02101 FOR PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. MAC RELATED WORK ORDER 000000003046124 AND PRTR FORWARD CARGO HEAT DUCT SHUTOFF VALVE PLACED IN THE FULLY CLOSED SELEY, ALAN (V937165) DEFERRING R PACK PER MEL. DDG COMPLIED WITH. REMOVED AND REPLACED RIGHT TEMPERATURE CONTROL VALVE. REF AMM 21-51-10-400-801. OPS CHECK OK. COMPLIED WITH MEL REACTIVATION ROTABLE PARTS CHANGE WAS INDICATED - TT # 1815537 SN OFF 4633 IPC REFERENCE # 21-51-10-03

ATA 5330

Part: SKIN — DAMAGED (FUSELAGE) · airframe 22,254 hrs · 7,976 cycles

RAMP REPORTED DAMAGE TO AFT CARGO A/C CUTOUT INSPECTED AREA FOUND THREE AREAS OF DAMAGE ON FWD SIDE OF AFT CARGO DOOR CUTOUT. LOWER DAMAGE IS APPROX 24 INS FROM BOTTOM OF CUTOUT, 1.5 INCHES LONG AND DENTED IN APPROX 1/16 INCH. MID DAMAGE IS APPROX 31 INS FROM BOTTOM OF CUTOUT, 3.5 INCHES LONG AND IS DENTED IN APPROX 1/8 INCH ON EXTERNAL SKIN. UPPER DAMAGE IS APPROX 34 INCHES FROM BOTTOM OF CUTOUT, 1/2 INCH WIDE WITH 2 GOUGES APPROX 1/16 INCH DEEP. PRESSURIZED A/C AND FOUND NO DISCERNIBLE LEAKS AT OR AROUND DAMAGED AREAS. LOCKED BY TOMC FOR MX FERRY BLENDED OUT DAMAGE AT TWO LOCATIONS= 24" AND 34" FROM BOTTOM OF DOOR CUT OUT FOUND TO BE WITHIN ALLOWABLE DAMAGE 1 LIMITS REF SRM:53-00-01 FIG 103 AND CUT OUT DAMAGE AT LOCATION 31" FROM BOT TOM SIZE= 1.10 WIDTH X 2.35 LENGTH AFTER INSURANCE CUT, NDT HFEC ACCOMPLISHED ON BLEND OUT & CUT OUT AREAS PART 6 51-00-00-16. NO FURTHER CRACKS NOTED. REF NDT PART 6 51-00-00-23 & EXISTING FASTENER HOLE INSP REF AND AT DAMAGE LOCATION 31" FROM BOTTOM OF DOOR CUT OUT DAMAGED REMOVED REF SRM: 53-00-01 REPAIR 25 FERRY FLIGHT COMPLETED ENT UPDATED LOG BOOK TO REFLECT MAJOR REPAIR AND INSPECTION REQUIRE INSPECTED DAMAGE REMOVAL AREAS & PERFORMED HFEC ON DAMAGE REMOVE AL AREAS & EXISTING FASTENER HOLES. NO FURTHER DAMAGE NOTED. .160 2024-T3 PO 4087926, REF TABLE 201 OF SRM 53-00-01 REPAIR ARE FROM .080 2024-T3 PO 9642918: {3} OUTER DOUBLER IS IS FROM 25. VERIFIED REPAIR MATERIAL PARTS: {1} INNER DOUBLER & {2} DOUBLER UPDATE

ATA 3350

Part: BULB — INOPERATIVE (EMERGENCY LIGHT) · airframe 13,708 hrs · 4,851 cycles

L1 DOOR, EXTERIOR EMERGENCY LIGHT INOPERATIVE. REPLACED THE LAMPS L1 DOOR EXTERIOR EMERGENCY LIGHT BULB. FUNCTIONAL CHECKS GOOD.