N915AK

Part: LIGHT — FAULTED (ZONE 200) · airframe 14,930 hrs · 4,464 cycles

FA REPORTED THAT AFTER LANDING THE EMERGENCY EXIT LIGHTS ILLUMINATED FOR ABOUT 15 SECONDS ON LANDING. GROUNDED - YES. OPS CHECK EMERGENCY EXIT LIGHTS THROUGHOUT CABIN, OPS CHECK AS NORMAL. AT R2 DOOR CHECKED FOR FLICKERING OR LIGHTS TO GO OFF IN ILLUMINATED POSITION. COULD NOT DUPLICATE FAULT. ADVISED CREW TO MONITOR ON NEXT LANDING. OPS CHECK IAW AMM 35-51-00-710-801.

Part: BATTERY PACK — NO TEST (ZONE 2000) · airframe 13,118 hrs · 3,934 cycles

MID AREA SECTION BETWEEN ROWS 17 TO 23 EMERGENCY LIGHTS FAILED BATTERY PACK CAPACITY FUNCTIONAL CHECK. GROUNDED - YES. REMOVED AND REPLACED AT STA 727 C+13 POWER SUPPLY BATTERY PACK M1671 AND PERFORMED OPS CHECK GOOD IAW B737 AMM 33-51-06-960-802.

Part: LIGHT — FALSE ACTIVATION (ZONE 200) · airframe 11,543 hrs · 3,483 cycles

UPON LANDING, R2 EMERGENCY LIGHT ILLUMINATED AND EXIT LIGHT ILLUMINATED. BOTH LIGHTS WENT OUT AFTER APPROXIMATELY 15 SECONDS NO PRESSURIZATION ISSUES NOTED AND NO COCKPIT INDICATION PRESENT. GROUNDED - YES. R2 DOOR INSPED, NO DEFECTS NOTED.OPENED & CLOSED INSIDE & OUTSIDE HANDLES PRFM'D EMERGENCY LIGHT TEST IAW AMM 33-51-00-720-801. CHIK'D COCKPIT DEFECTS FOR DOOR & LIGHT INDITCATIONS NO DEFECTS NOTED.

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHTS) · airframe 9,332 hrs · 2,859 cycles

LIGHTS ASSOCIATED WITH POWER SUPPLY M1673 INOP. GROUNDED - YES. REMOVED AND REPLACED EMER PWR SPLY M1673 IAW 737 MAX AMM 33-51-06. OPS CHECK GOOD IAW 737 MAX AMM 31-51-06. PO: 1076521.2.

Part: POWER SUPPLY — INOPERATIVE (MAIN CABIN) · airframe 9,332 hrs · 2,859 cycles

LIGHTS ASSOCIATED WITH POWER SUPPLY M1675 INOP. GROUNDED - YES. REMOVED AND REPLACED EMER PWR SPLY M1675 S/N 170722 IAW 737 MAX AMM 33-51-06. OPS CHECK GOOD IAW 737 MAX AMM 33-51-06.

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHTS) · airframe 9,332 hrs · 2,859 cycles

LIGHTS ASSOCIATED WITH POWER SUPPLY M1675 INOP. GROUNDED - YES. REMOVED AND REPLACED EMER PWR SPLY M1675 IAW 737 MAX AMM 33-51-06. OPS CHECK GOOD IAW 737 MAX AMM 31-51-06. PO: 1076521.1.

Part: POWER SUPPLY — INOPERATIVE (MAIN CABIN) · airframe 9,332 hrs · 2,859 cycles

LIGHTS ASSOCIATED WITH POWER SUPPLY M1673 INOP. GROUNDED - YES. REMOVED AND REPLACED EMER PWR SPLY M1673 S/N 169591 IAW 737 MAX AMM 33-51-06. OPS CHECK GOOD IAW 737 MAX AMM 33-51-06.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 9,070 hrs · 2,777 cycles

WHEN WING ANTI-ICE SELECTED ON IN FLIGHT, AMBER "L VALVE" STAYED ON. GROUNDED - YES. ACCOMPLISHED WING THERMAL ANTI-ICE VALVE HEALTH CK REF B737-9 AMM 30-11-11-200-801. OPS CHECK GOOD.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 8,981 hrs · 2,757 cycles

APU FAULT LIGHT ILLUMINATED WHEN STARTING APU ON TAXI IN TO GATE. GROUNDED - YES. CHECKED FOR OMF FOUND NO ACTIVE FAULT AND FOUND MSG #49-41012 (NO APU ROTATION SHUTDOWN) AND 49-41254 (START CONVERTER UNIT SHOWS START SYSTEM INOP) WHICH IS NOT ACTIVE. PERFORMED APU BITE PROCEDURE PER AMM 49-61-00-700-801. NO MORE ACTIVE MESSAGE FOUND REF IFIM 49-40-00-810-818.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 8,783 hrs · 2,702 cycles

FO'S FMS DISPLAYED "VTK" MOMENTARILY ON DESCENT OPS RETURNED TO NORMAL AFTER ABOUT 20 SECONDS. GROUNDED - YES. NO FAULTS OR CORRERLATED MSGS FOUND ON ONS. ALL CHECKS NORMAL, OK FOR SVC. REF B737-9 AMM 34-61-00.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 8,778 hrs · 2,701 cycles

APU FAULT SHORTLY AFTER START ON GROUND. GROUNDED - YES. TROUBLESHOT AND FOUND MTX MG #49-41254, STARTER CONVERTER UNIT SHOWS START SYSTEM INOP. PERFORMED B737-9 IFIM TASK 49-40-00-810-818. FAULT IS NOT ACTIVE.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 8,735 hrs · 2,688 cycles

BOTH WING ANTI ICE LIGHTS ULLUM VALVE IN FLIGHT CYCLED TWICE, NO RESOLUTION. GROUNDED - YES. ACCOMPLISHED WING THERMAL ANTI ICE VALVE OPS TEST MULTIPLE TIMES ON L/H AND R/H VALVES NO DEFECTS NOTED AMM 30-11-11 NO 30 DAY HISTORY FALUT CONDISDERED INTERMITTENT A/C OK FOR SERVICE.

Part: COMPUTER — FAULTED (E/E RACK E5-2) · airframe 8,576 hrs · 2,636 cycles

LEFT FMC COMPUTER IS REBOOTING IN FLIGHT 3 HITS SO FAR. GROUNDED - YES. PER TSR REMOVED & REPLACED LEFT FMC COMPUTER AND VERIFIED & LOADED CURRENT SOFTWARES AND PERFORMED INSTALLATION TEST NORMAL B737-9 AMM 34-61-02/401.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 8,556 hrs · 2,630 cycles

LEVEL AT 350, ON THE CAPTAINS SIDE WE RECEIVED A VTK FLAG AND THE #1 AUTOPILOT REVERTED TO CWS. AFTER SELECTING HDG SEL, THE FLAG WENT AWAY AGAIN LEVEL 350 WE RECEIVED A VTK FLAG ON THE FO'S SIDE AND HIS DISPLAY SCREENS WENT BLANK FOR APROX 2 SECONDS FLAG WENT AWAY OPS NORMAL. GROUNDED - YES. PERFORMED BOTH FMC COMPUTERS RESET IAW B737-9 AMM 34-61-00 SYSTEM OPTS CHECK OK NO FLAGS DISPLAYED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 8,560 hrs · 2,631 cycles

DURING CRUISE FLT AT 340 VTK FLAG ON CAPT,S SIDE BOTH FMC DISPLAYS BLANKED AND THEN WENT TO MENU ON DISPLAYS VTK WENT AWAY AND BOTH FMC'S OPERATED NORMALLY AFTER. GROUNDED - YES. DFCS BITE SHOWS FMC #1 REBOOTED AT FL 340 ON LEG 3 AND AGAIN ON LEG 2 AT FL 350. MDS FAULTS CODE 34-69001 ON THE SAME LEGS. REVERSED MEL CONFIG. RESET FMC 1 & 2 REF B737-9 IFIM 34-61-00-810-836. OPS TEST GOOD. C/W FMS LRU REPLACEMENT TEST. OPS CHECK GOOD.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 8,278 hrs · 2,553 cycles

ON ARRIVAL AT THE AIRCRAFT :MAINTENANCE" LIGHT ON OVERHEAD PANEL ILLUMINATED. GROUNDED - YES. OMF SHOWS ACTIVE MSG 73-44791 & 73-44792, ACCOMPLISHED IFIM G73-21-00-810-A00 & G73-21-00-810-A01, MAINT LIGHT EXTINGUISGED & BOTH FAULT MSG NO LONGER ACTIVE.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 8,234 hrs · 2,535 cycles

SELECTINS, WING HEAT AMBER "L VALVE & R VALVE" ILLUMINATED. 10 SECOND LATER MASTER CAUTION ILLUMINATED. GROUNDED - YES. PERFORMED L/H WING TAIV HEALTH CHK TO STEP H. VLV OPS REF AMM 30-11-11, CYCLE OPS NML. A.ROSEN 40129 08/30/2023WING THERMAL ANTI ICE VLV HEALTH CHECK COMPLETE. MOISTURE CLEARED USING PROCEDURES PER AMM 30-11-11. ENSURED C/B'S CLOSED. WAIV OPERATES NORMALLY WITH NO EXISTING FAULTS. WAIV FAULT CONSIDERED INTERMITTENT.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 8,219 hrs · 2,532 cycles

MAINT LIGHT ON OVERHEAD PANEL AFTER LANDING. GROUNDED - YES. FOUND MAINT MESSAGE 21-55011 REF IFIM 21-51-00-810-804 PERFORMED AIR CONDITIONS SYS TEST TEST PASSED, FALUT CLEARED AC OK FOR SERVICE SEAMC NOTIFIED.

Part: ACTUATOR — FAULTY (RT RAM AIR DOOR) · airframe 8,205 hrs · 2,529 cycles

RIGHT PACK RAM AIR DOOR ACTUATOR HAS SIGNAL ERROR( 2 HITS)(PRI 1). GROUNDED - YES. (RESOLVED ON W/O: 1967265 TASKCARD: N/R-00001 ) REMOVED AND REPLACED RIGHT PACK AFT RAM AIR ACTUATOR ASSY. PER AMM REF. 21-51-27.RAN AIRCONDITIONING IBIT SYSTEM TEST PER IFIM 21-51-00-810-804, TEST PASSED.5 MIG 51A TAGS INSTALLED , 5 MIG 51A TAGS REMOVED .SEAMC ASHRAF NOTIFIED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 8,021 hrs · 2,476 cycles

MAINT LIGHT ON OVERHEAD ILLUMINATED AFTER LANDING. GROUNDED - YES. MAINT LT WAS EXTINGUISHED UPON ARRIVAL. INBOUND INACTIVE FAULT IS MSG 21-55011, PERFORMED IFIM 21-51-00-810-804, INITIAL EVALUATION PASSED, FAULT WAS INTERMITTENT. NO HISTORY FOR RAM AIR ACT LAST 30 DAYS.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 7,951 hrs · 2,460 cycles

DURING PREFLIGHT GOT "VTK" AND "MAP" FLAGS ON F.O. NAV DISPLAY. GROUNDED - YES. ACCOMPLISHED IFIM TASK 31-00-00-810-803 RESET FMC'S CMPTR C/B NO ACTIVED FAULTS STATUS MESSAGES CLEARED. 'VTK AND MAP' NO SHOWING ON F.O. NAV DISPLAY, NO FAULTS NOTED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 7,727 hrs · 2,388 cycles

APU GEN CONT UNIT CIRCUIT BREAKER OUT. GROUNDED - YES. RESET APU GEN CONT C/B ON P6-4 WITH NO FAULTS PER WDM 24-22-31-1 AND AMM 20-60-01. PERFORMED GOOD OPS TEST OF APU GEN PER AMM 24-21-00-700-801. NO HISTORY PAST 30 DAYS.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 7,489 hrs · 2,319 cycles

FWD AND AFT TEMP CONTROLS NEED TO BE ON FULL COLD TO GET ACCEPTABLE CABIN TEMP. DUCT AND CABIN TEMP GAUGES APPEAR NORMAL. FLIGHT DECK CONTROLS AND INDICATIONS NORMAL. GROUNDED - YES. PERFORMED PRESENT FAULTS CHECK AND FOUND CODE 21-55011 R/H RAM AIR DOOR ACTUATOR SIGNAL ERROR. PERFORMED B737-9 IFIM 21-51-00-810-804 WITH NO FAULTS FOUND. FAULT NOT ACTIVE.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 7,035 hrs · 2,187 cycles

AFTER LANDING MAINT LIGHT ILLUMINATED. GROUNDED - YES. INTERROGATED SYSTEM HAD CODE 74-42515 AND 74-42565 DISPLAYED. ACCOMPLISHED B737-9 FIM TASK G741-00-00-810-830. ASSOCIATED FAULTS RESET, NORMAL INDICATION, MAINT LIGHT EXTINGUISHED.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 7,031 hrs · 2,186 cycles

NOTICED IN CRUISE FLIGHT BOTH LEFT AND RIGHT SPAR VALVE CLOSED LIGHTS WERE ILLUMINATED. WE THEN CHECKED CIRCUIT BREAKERS AND FOUND BOTH SPAR VALVE ENGINE 1 AND 2 WERE TRIPPED. GROUNDED - YES. FLT CREW COULD NOT CONFIRM THAT C/B'S WERE HIT BY SEAT BELT OR FLT BAG. INSPECTED C/B C359 AND ASSOC WIRING BEHIND P6-3 PANEL NO DEFECTS FOUND. INSPECTED #1 ENG SPAR VALVE V37 AND CONN D788, NO DEFECTS RESET C/B C359 PER B737-9 AMM 20-60-01 AND PERFORMED OPS CKS OF #1 ENG SPAR VALVE REF AMM 28-22-00-710-810 C/B REMAINED CLOSED. INSPECTED C/B C540 REF B737-9 WDM 28-22-11 NO DEFECTS NOTED, INSPECTED CONNECTOR D790 AND V38 REF WDM 28-221-11, NO DEFECTS NOTED. RESET C/B C540 REF AMM 20-60-01, ACCOMPLISHED OPS CK OF #2 SPAR VALVE REF AMM 28-22-00-710-810 ALL GND TESTS PASSED, NO HISTORY 30 DAYS. RAN #1 AND #2 ENGINES AND BOTH SPAR VALVES OPS NORMAL C/B'S REMAINED CLOSED, ALL GROUND FUNCTIONAL TESTS PASSED.

Part: MODULATING VALVE — FAULTED (#1 ENGINE) · airframe 6,979 hrs · 2,164 cycles

DURING WALK AROUND FOUND STATUS MSG "BLEED FAN VALVE" WITH ASSOCIATED WITH "MAINT" LIGHT ON... MAINT FAULT CODE 36-12020. GROUNDED - YES. REPLACED #1 ENG FAMV REF B737-9 AMM 36-12-03 ACCOMP.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,974 hrs · 2,161 cycles

AFTER LANDING "MAINT" ILLUMINATES DURING TAXI. GROUNDED - YES. FOUND FAULT CODE 36-12020 FAN AIR MODULATING VALVE NOT IN COMMANDED POSITION. ACCOMPLISHED B737-9 IFIM 36-12-00-810-801 LRU TEST PASS NO FAULTS FOUND AFTER TEST. INTERMITTENT FAULT.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,955 hrs · 2,157 cycles

FMC DISAGREE MSG, F/O SIDE NO DATA. GROUNDED - YES. PERFORMED B737-9 IFIM TASK 34-61-00-810-918 FAULT CLEARED OPS TEST OK.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,723 hrs · 2,086 cycles

WING ANTI ICE L+ R ORANGE LIGHT WHEN WING ANTI ICE SELECTED ON, R ANTI ICE LIGHT WENT OUT AFTER APPROX 1 MIN. L WING ANTI ICE LIGHT STAYED ON FOR APPROX 4 MINS. EVENTUALLY CLEARED. GROUNDED - YES. PERFORMED LEFT WING THERMAL ANTI ICE VALVE HEALTH CHECK REF B737-9 AMM 30-11-11. OPS CHECK GOOD NO DEFECTS NOTED AT THIS TIME ON LH ANTI ICE VALVE. PERFORMED WING THERMAL ANTI ICE VALVE OPS TEST WITH APU BLEED PNEUMATIC AIR REF AMM 30-11-11. OPS CHECK GOOD NO DEFECTS NOTED AT THIS TIME ON RH ANTI ICE VALVE.

Part: CONTROL PANEL — FAILED (FLIGHT DECK) · airframe 6,280 hrs · 1,966 cycles

IN WX, WX+T & MAP MODES CAPT SELECTED TILT IN MAN MODE DOES NOT MATCH INDICATED TILT ON NAV DISPLAY. IN MAN MODE, CAPT TILT SHOWS +15 DEG WITH 0 SELECTED ON RDR PNL; SHOWS +4 WITH -15 SELECTED. RDR APPEARS TO WORK NORMALLY IN AUTO MODE. FO RDR WORKS NORMALLY IN ALL MODES. GROUNDED - YES. VERIFIED TILT FAIL. REPLACED WX RDR CONT PNL - WX RDR & TILT SYS OPS OK. REF B737-9 AMM 34-41-53.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,045 hrs · 1,899 cycles

REF T/C 05-020-01#2 ENG HAS EEC C1 FAULT, WITH CORRELATED MAINTENANCE MESSAGE 73-43983 ELECTRONIC OVERSPEED THRUST CONTROL MALFUNCTION ACCOMMODATION TEST FAILED. GROUNDED - YES. REF B737-9 FIM G73-20-00-810-927, ACCOMPLISHED INITIAL EVALUATION AND TESTS PASS WITH NO FAULTS. NO FURTHER MAINTENANCE NECESSARY.

Part: PUMP — LEAKING (#1 ENGINE) · airframe 5,958 hrs · 1,873 cycles

FUEL LEAKING FROM #1 ENGINE DRAIN MAST UPON ARRIVAL. GROUNDED - YES. GROUND RUN #1 ENG. FOUND FUEL LEAK AT DRAIN LINE (FUEL PUMP PAD) REF B737-9 AMM 71-00-00. REMOVED #1 ENGINE MAIN FUEL PUMP REF AMM TASK 73-11-01-000-801-G00. INSTALLED NEW #1 ENGINE MFP REF AMM TASK 73-11-01-400-801-G00. OP'S AND LEAK CHECK GOOD. NO FURTHER LEAK NOTED AT DRAIN MAST.

Part: CHARGER — INOPERATIVE (MASTER BATTERY) · airframe 5,372 hrs · 1,690 cycles

ELEC LIGHT ILLUMINATED ON LANDING. GROUNDED - YES. AUX BAT CHGR INOP ON ELEC BITE. REMOVED AND REPLACED AUX BATTERY CHARGER, REF B737-9 AMM 24-31-31, OPS CKS NORMAL.

Part: HF COMM — FAULTED (NR 1) · airframe 4,989 hrs · 1,575 cycles

HF #1 WINDOWS FAIL FAIL. GROUNDED - YES. RESET #1 HF C/B CAPTAIN RTP FAIL LIGHTS EXTINGUISHED IAW B737-9 AMM 20-60-01. HF COMMUNICATION OPS TEST NORMAL IAW AMM 23-11-00-710.

Part: ACM — SEIZED (LEFT) · airframe 4,886 hrs · 1,544 cycles

LOUD WHINING NOISE WHEN LEFT PACK ON AT GATE, GOES AWAY WHEN PACK OFF. REGARDLESS OF RIGHT PACK ON OR OFF. GROUNDED - YES. L/H AIR CYCLE MACHINE SEIZED. REMOVED AND REPLACED L/H ACM REF B737-9 AMM 21-51-04. OPS AND LEAK CHECK GOOD.

Part: DE-ICE VALVE — FAULTY (LEFT WING) · airframe 4,874 hrs · 1,540 cycles

LEFT WING DE-ICE VALVE ILLUMINATED AND REMAINS ON WHEN WING ANTI - ICE SWITCH TURNED ON. ASSOCIATED ANTI-ICE LIGHT AND MASTER CAUTION LIGHTS ILLUMINATE. ALL LIGHTS EXTINGUISH WHEN WING ANTI-ICE SWICH IS TURNED OFF. GROUNDED - YES. REMOVED AND REPLACED LH WING THERMAL ANTI-ICE VALVE REF B737-9 AMM 30-11-11. OPS CHECK GOOD.

Part: FMC — FAULTED (UNKNOWN) · airframe 4,588 hrs · 1,457 cycles

FMC DISAGREE ON INITIALIZATION. GROUNDED - YES. ACCOMPLISHED B737-9 IFM 34-61-00-810-918. OPS CHECK NORMAL.

Part: DFGS — FAULT MESSAGE (UNKNOWN) · airframe 4,526 hrs · 1,435 cycles

ON RECALL SPEED TRIM LT COMES ON / CLEARS WITH RESET. GROUNDED - YES. TROUBLESHOOT PER B737-9 IFIM 22-11-00. PERFORMED BITE CHECKS OF DFCS IAW B737-9 AMM 22-11-00. ALL TESTS PASSED. NO FAULTS ON RECALL.

Part: NONE — NONE (#2 ENGINE) · airframe 4,381 hrs · 1,392 cycles

3 OUTBOARD GUIDE VANES ON #2 ENGINE HAVE TRAILING EDGE DAMAGE. LOCATION 3' OCLOCK. GROUNDED - YES. FOUND (1) ADDITIONAL (OGV) BAD REMOVED #12,13,14,14 AND 15 OGV ON THE #2 ENGINE PER B737-9 AMM 72-21-03-00-801.

Part: UNKNOWN — FAULTY (#2 ENGINE) · airframe 4,252 hrs · 1,354 cycles

WHILE PERFORMING ASA T/C 05-020-01, FOUND ENG 2 EEC C1 FAULT WITH CORRELATED MAINTENANCE MESSAGE 73-43773. GROUNDED - YES. ON THE #2 ENG, FOUND FAULT CODE 73-43773, T25 SENSOR SIGNALS DO NOT AGREE ON EEC CH A. PERFORMED B737-9 IFIM TASK G73-21-00-810-915. REMOVED AND REPLACED #2 ENGINE T25 SENSOR REF B737-9 AMM 73-21-63/401. #2 EEC SYSTEM TEST PASSED WITH NO FAULTS FOUND. ETOPS GROUND VERIFICATION SUCCESSFUL.

Part: CDU — INOPERATIVE (FLIGHT COMPARTME) · airframe 4,149 hrs · 1,325 cycles

CAPT AUTOTILT FUNCTION INOP ON RADAR. GROUNDED - YES. REPLACED WXR CNTRL PNL AND INSTALLATION TEST IS GOOD. REF B737-9 AMM 34-41-53/401.

Part: KNOB — LOOSE (FLIGHT COMPARTME) · airframe 4,128 hrs · 1,319 cycles

CAPT RADAR TILT/ GAIN KNOB IS LOOSE. GROUNDED - YES. REPLACED WXR CONTROL PANEL REF B737-9 AMM 34-41-53/401.

Part: LIGHT — ILLUMINATED (UNKNOWN) · airframe 3,931 hrs · 1,260 cycles

FLT ATTENDANT REPORTS EMERGENCY EXIT LIGHTS IN AFT GALLEY AND ROW 30 ILLUMINATED ON LANDING THEN EXTINGUISHED ON TAXI IN. LANDING TOUCHDOWN WAS SMOOTH. GROUNDED - YES. C/W EMERGENCY LIGHT OPS TEST REF B737-9 AMM 33-51-00-720-801. OPS TEST GOOD.

Part: DRIVE UNIT — FAULTY (NOSE RADOME) · airframe 3,899 hrs · 1,247 cycles

WX RADAR IS WORKING INTERMITTENTLY. RED STREAK FROM A/C TO 10-11 O'CLOCK POSITION ON DISPLAY. GROUNDED - YES. PERFORMED WXR OPS TEST NORMAL, UNABLE DUPLICATE DISCREPANCY ON GROUND, FOR PRECAUTIONARY, REPLACED NEW ANTENNA DRIVE UNIT, PERFORMED INSTALLATION TEST GOOD B737-9 AMM 34-41-11/401.

Part: CABIN AIR SYS — WARNING LIGHT · airframe 3,869 hrs · 1,232 cycles

OVERHEAD AMBER MAINT LIGHT ON AFTER LANDING. GROUNDED - YES. C/W BITE CHECK FOR R/H PACK AND FOUND MAINT MESSAGE 21-55011 RIGHT AIR CONDITIONING PACK EXIT RAM AIR DOOR ACTUATOR HAS A SIGNAL ERROR, C/W B737-9 IFIM REF TASK 21-51-00-810-804 THROUGH STEP C, VERIFIED 28.62 VDC AT CONNECTOR D14398 BETWEEN PINS 4 AND 16 OF R/H RAM AIR EXHAUST ACTUATOR REF B737-9 WDM 21-51-24 AND IFIM 21-51-00-810-804. REPLACED R/H RAM AIR EXHAUST ACTUATOR REF B737-9 AMM 21-51-27-400-801. PERFORMED AIR CONDITIONING SYSTEM TEST, AIR CONDITIONING IBIT REF AMM 21-00-00-730-801. TEST PASSED, NO FURTHER DEFECTS NOTED. VERIFIED MAINT LIGHT REMAINS EXTINGUISHED AND FAULT IS NOT LATCHED.

Part: OVERHEAT — WARNING LIGHT · airframe 3,640 hrs · 1,163 cycles

R2 WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED OPERATIONAL TEST OF R2 WINDOW REF B737-9 IFIM 30-41-00-810-831. OPS TEST NORMAL.

Part: WINDOW — OVERHEATED (UNKNOWN) · airframe 3,171 hrs · 1,017 cycles

LEFT SIDE WINDOW OVERHEAT ON TAXI IN. GROUNDED - YES. ACOMPLISHED WITH B737-9 FIM TASK 30-41-00-810-830. WINDOW HEAT OPERATIONAL TEST NORMAL PER AMM TASK 30-41-00-710-801.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 2,985 hrs · 969 cycles

"WXR FAIL" DISPLAYED ON ND. GROUNDED - YES. PERFORMED WXR OPS TEST GOOD, NO DISCREPANCY NOTED B737-9 AMM 34-41-00-710-801.

Part: FMC — UNKNOWN (UNKNOWN) · airframe 2,772 hrs · 906 cycles

LOSS OF FMC-L INFLIGHT. GROUNDED - YES. PERFORMED B737-9 IFIM 34-61-00-810-836. L/H FMC OPS RESTORED. 1 EA C/B ON P18-2 , A6 OPENED, RESET. ETOPS GND VERIFICATION TEST SUCCESSFUL.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 2,304 hrs · 770 cycles

HF1 FAIL MESSAGE ON RADIO CONTROL PANEL. GROUNDED - YES. CYCLED HF 1 C/B P12-2 1 MIG 51A INST AND REMOVED REF B737-9 SSM 23-11-11-103.OPS CHECK GOOD AFTER C/B CYCLED REF B737-9 AMM 23-11-00 ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL. NO FAIL MESSAGE ON CONTROL PANEL.

Part: TRANSMITTER — FAULTY (AFT BLKHD STA 11) · airframe 1,852 hrs · 638 cycles

ON RECALL, SPEED TRIM FAIL LIGHT ILLUMINATED. LIGHT EXT AFTER RESET. GROUNDED - YES. REMOVED AND REPLACED STAB POSITION SENSOR PER B737-9 AMM 22-11-31. C/W STAB POS SENSOR ADJUSTMENT & TEST PER AMM 22-11-31-820-801. OPS TEST NORMAL.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 1,766 hrs · 618 cycles

AIRINC IS GARBLED AND UNREADABLE USING HF1. COMMUNICATION WITH AIRINC IS NORMAL WHEN USING HF2. GROUNDED - YES. PERFORMED TEST OF HF1 COMMUNICATION SYSTEMOPS NORMAL IAW B737-9 AMM 23-11-21-740-001.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 1,567 hrs · 573 cycles

FMC DISAGREE QRH PROCEDURE COMPLETED. GROUNDED - YES. FMC OPERATIONAL TEST NORMAL REF B737-9 IFIM 34-61-00-810-918.

Part: CONVERTER — FAULTY (E/E RACK E2-2) · airframe 1,567 hrs · 573 cycles

AFTER LANDING, APU FAILED TO START. APU FAULT ILLUMINATED. GROUNDED - YES. FOUND FAULT 49-41254 ACTIVE BEFORE START SUCCESSFUL. FOUND FAULT 49-41012 REPEAT INSTANCES. CW B737-9 IFIM 49-40-00-810-805 AND 49-40-00-810-818. REMOVED AND REPLACED START CONVERTER UNIT GROUND VERIFICATION CHECK GOOD REF B737-9 AMM 49-41-61-400-801.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 1,510 hrs · 560 cycles

RIGHT FMC FAILED. GROUNDED - YES. RESET R/H FMC PER B737-9 FIM 34-61-00NO ACTIVE FAULTSSEAMC NOTIFIED.

Part: NONE — NONE · airframe 1,505 hrs · 559 cycles

REF T/C 05-020-01 FOUND ENG 1 EEC C1 SHORT TIME FAULT. GROUNDED - YES. REF T/C 05-020-01 #1 ENG EEC C1 SHORT TIME FAULT NO LONGER SHOWS. NO EXISTING FAULTS FOUND.

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 1,373 hrs · 529 cycles

F/A REPORTS EMER EXIT LIGHTS AFT RIGHT SIDE DOOR SPONTANEOUSLY ILLUMINATED ON LANDING ROLL OUT. EXTINGUISHED UPON REACHING TAXI SPEED. GROUNDED - YES. PERFORMED EMERGENCY LIGHT OPERATIONAL TEST PER B737-9 AMM SUBTASK 33-51-00-720-801TEST PASSED. NO FAULTS FOUND. A/C OK FOR CONTINUED SERVICE.

Part: NONE — FAILED (TAIL CONE) · airframe 1,035 hrs · 448 cycles

DFCS BITE LIBRARY 35 DUAL TEST SHOWS FAIL MSGS 22-11191 AND 22-11194 MT CMD MON. GROUNDED - YES. REMOVED AND REPLACED MACH TRIM ACTUATOR REF B737-9 AMM 22-11-24/401. OP TEST NORMAL REF AMM 22-11-24/501. DFCS BITE LIBRARY TEST 35 NOW PASSES. IFSAU TEST GOOD REF AMM TASK 22-11-37 & 22-11-00.

Part: ENGINE — NOT REPORTED (LEFT) · airframe 28 hrs · 22 cycles

ENG #1 REPLACEMENT REQUIRED DUE TO ODMS 50 FINDINGS. REF TSR 711079.MIG 2C INITIATEED S/N 40-0043424, 40-0003912. GROUNDED - YES. REPLACED #1 ENGINE ON W/O 1882380 PER T/C 71-ASA-02 MIG 2C # 40-0043424 AND 40-0003912 CLOSED.

Part: FMC — MALFUNCTIONED · airframe 486 hrs · 232 cycles

FMC DISAGREE ON GROUND. RAN QRH PROBLEM SOLVED. GROUNDED - YES. C/W B737-9 IFIM TASK 34-61-00-810-918 FOR FAULT CODE 346 621 48. INITIAL EVALUATION OPS TEST CHECKS OK. NO DEFECTS NOTED. REF B737-9 AMM 34-61-00.

Part: WARNING MESSAGE — FALSE ACTIVATION (WINDOW OVERHEAT) · airframe 359 hrs · 174 cycles

PRIOR TO PUSHBACK, RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED B737-9 IFIM TASK 30-41-00-810-831 AND R/H SIDE WINDOW HEAT OPS TEST GOOD.

Part: MODULE — FAILED (E/E BAY) · airframe 27 hrs · 23 cycles

DURING ACCOMPLISHMENT OF FMS/NAV TC 22-ASA-01, FAILURE OF DUAL STAB BITE LIBRARY 35 WITH CHANNEL A AND B FAULT CODE 22-11191 AND 22-11194 'MT CMD MON'. GROUNDED - YES. REF B737-9 IFIM 22-11-00-810-947 AND -950. REPLACED IFSAU REF B737-9 AMM 22-11-37-400-801. OPS NORMAL.