N943AK
Registered owner: ALASKA AIRLINES INC, WA (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
OVERWING EXIT AFT EMERGENCY LIGHT INOPERATIVE, GROUNDED - YES. REPLACED OVERWING (LH) EXIT EMERGENCY LAMP LIGHT IAW AMM 33-51-04-960-801. TEST GOOD.
OVERWING EXIT AFT EMERGENCY LIGHT INOP L/HSRXR430X. GROUNDED - YES. REPLACED OVERWING (LH) EXIT EMERGENCY LAMP LIGHT IAW B737 AMM 33-51-04-960-801. TEST GOOD. SRXR430X.
OVERWING EXIT SIGN ON RIGHT SIDE FELL OFF. GROUNDED - YES. REATTACHED OVERWING EXIT SIGN ON RIGHT SIDE. OKAY FOR CONTINUED SERVICE.
WHILE ACCOMPLISHING TASK CARD # 33-010-00 FOUND R2 EXTERIOR EMERGENCY LIGHT INOP. GROUNDED - YES. RELAMPED R2 EXTERIOR EMERGENCY LIGHT REF AMM 33-51-04. OPS CHECK GOOD.
MASTER CAUTION ANTI-ICE ILLUMINATED AND EXTINGUISHED WITHIN 2 SECONDS, UNABLE TO DETERMINE WHICH ENG ANTI-ICE SYSTEM WAS TRIGGERED - TAT 9*C, VISIBLE RAIN. GROUNDED - YES. NO STATUS MESSAGES OR FAULTS LOGGED. WITH CREW ASSISTANCE RAN BOTH ENGINES FOR ANTI-ICE SYSTEM OPERATIONAL TEST. NO FAULTS OR DEFECTS NOTED - REF B737-9 AMM 30-21-00-860-002.
CAPT FMC SWITCHED TO MAIN MENUE AND "VTK" ON ND, MAP DISPLAY WENT AWAY THEN CAME BACK, ALL LASTED ABOUT 15 SECONDS. 10 MIN LATER F.O.'S FMC WENT TO MAIN MENUE, HIS MAP FLICKERED AND GOT "VTK" FOR JUST A COUPLE SECONDS, THEN CAME BACK ON LINE. THEN WITHIN THE NEXT MIN. WE GOT A R-GPS INVALID FOR ABOUT 2 MIN. ALL OF THIS OCCURED AROUND LOS ALAMOS TESTING FACICITY, NOT SURE IF TESTING WAS GOING ON. ALL SYSTEMS ARE NOW OPS NORMAL. GROUNDED - YES. CYCLED POWER TO LEFT AND RIGHT FMC OPS RESTORED NO FAULT LOGGED REF FIM TASK 34-61-00-810-918, SEAMC PHIL NOTIFIED.
LEFT CENTER FUEL PUMP "LOW PRESSURE" LIGHT DID NOT ILLUMINATE WHEN FUEL WAS EXHAUSTED WHILE IN CRUISE. LIGHT ILLUMINATES WHEN TESTED. WAITED UNTIL MAIN TANKS WERE AT 6500 LBS EACH, THEN SELECTED OFF. GROUNDED - YES. FOUND LH CTR PUMP PRESSURE SWITCH CONNECTOR D876 LOOSE. RECONNECTED AND PERFORMED AN OP-CHECK REF MM 28-42-11. ALL TESTS NORMAL. ETOPS GROUND VERIFICATION GOOD. OK FOR SERVICE. SEAMC CARL NOTIFIED.
MAINT LIGHT ILLUMINATED AFTER LANDING WITH THE THRUST REVERSER DESPLAYED. GROUNDED - YES. "BLEED FAMV R" ASSOCIATED WITH MAINT. MESSAGE 36-12021 "ENGINE - 2 FAMV IS NOT IN COMMANDED POSITION." (AV 87105 08/29/2023.) ALTERNATE DEACTIVATED PROCEDURE USED PER CHAPTER 5, TABLE 3, ITEM 7. REMOVED AND REPLACED #2 ENG FAMV REF AMM 36-12-03 OPS CHECKS GOOD. NO DEFECTS NOTED. "BLEED FAMV R" NO LINGER ACTIVE FAULT. MAINT LIGHT EXTINGUISHED. ALTERNATE DEACTIVAITON PROCEDURES REVERSED. SEAMC DARWIN NOTIFIED. GROUND VERIFICATION SUCCESSFUL.
NO.1 FMC FAILED IN FLIGHT FOLLOWED BY FMC RESTART. GROUNDED - YES. FAULT MESSAGE 34-69001 IN FAULT HISTORY. NOT LATCHED. CYCLED CB'S FOR FMC #1 & #2 REF FIM 34-61-00. OK FOR SERVICE.
FOUND AMBER MAINT LIGHT ON. GROUNDED - YES. STATUS PAGE SHOWING: ENG 1 FAN COMP OVHT SENSOR, ENG 1 CONTROL, ENG 1 REVERSER. FOUND P91 MAINT S/W ENABLE, AND EEC 1 IN TEST MODE. ACCOMPLISHED IFIM TASK G73-20-00-810-869. NO FAULT HISTORY OR CORRELATED MSG. EEC1 MAINT ENG 1 POWER TEST, NO FAULTS. NOTE: HANGAR TOW-UP.
UNABLE TO TRANSIT ON HF#1, HOWEVER,ABLE TO RECEIVE ON HF#1.HF#2 OPERATING NORMALLY. GROUNDED - YES. ON DEFERRAL.
HF 1 NOT WORKING CORRECTLY RECIVE BUT NOT TRANSMIT HF2, SATCOM AND DATALINK ALL WORK CORRECTLY. GROUNDED - YES. PERFORM IFIM TASK 23-11-00-810-813 NO ATA 23 FOUND IN OMF PERFORM HF SYSTEM TEST IAW AMM 23-1-00-730-801. HF1 TRANSMITTED AND RECEIVED NO DEFECT NOTED.
WHILE IN FLIGHT, LEFT FMC FAILED. CAPTAIN'S NAV DISPLAY SHOWED VTK FLAG. NO FMC DATA WAS ON CAPTAIN'S NAV DISPLAY MAP MODE. FMC DATA WAS LOST ON BOTH CDUS. AFTER 30 SECONDS, SYSTEM RESUMED NORMAL OPERATION. GROUNDED - YES. RESET FMC'S REF IFIM TASK 34-61-00-810-918. ALL FAULTS CLEARED. NO FURTHER DEFECTS NOTED.
INTERMITTENT DUAL FMC FAIL AT FL 390. LASTED ABOUT 60 SEC THEN RECOVERED. GROUNDED - YES. VERIFIED FMC FAILED R/H FMC PRES POS LAT RATE & L/H FMC HAD CDU R RATE BOTH ARE INTERMITTENT. CYCLED BOTH FMC COMP. ACCOMPLISHED SENSOR STATUS TEST BOTH PASS TEST REF B737-9 AMM 34-61-00-710-002.
ON LANDING MASTER CAUTION CAME ON WITH MAINT LIGHT ON OVERHEAD. GROUNDED - YES. FOUND FAULT CODES FOR ENGINE #2 ODMS. RELEASED PER MEL 79-21-01A #2 ENGINE ODMS INOP. COMPLETED B737-9 IFIM TASK G79-21-00-810-811 STEP A THRU B.(8). AIR/OIL SEPARATOR REPLACED WITH POST LEAP-1B-SB-79-0012 PER T/C SBLEAP-1B-79-0012-1. OPS/LEAK CHECK OK, GROUND VERIFICATION SUCCESSFUL.
LEVEL IN CRUISE FLIGHT LEFT FMC FAILED WITH AN AUTO RECOVERY 10 SECONDS LATER. GROUNDED - YES. ACCOMPLISHED FMC OPS CKS REF B737-9 AMM 34-61-00 OPS NML, NO HISTORY PAST 30 DAYS.
RT FMC FAILED IN FLIGHT. COMPLETED QRH PROCEDURE NO RESTORE OCCURRED. CONTINUED SINGLE (LT FMC GOOD ) FMC OPERATION WITH FMC SOURCE SELECTOR SWITCH SET TO "BOTH ON L". GROUNDED - YES. REMOVED AND REPLACED FMCS COMPUTER IAW B737-9 AMM 34-61-01A.
FMC DISAGREE. GROUNDED - YES. RESET PROCEDURE PER QRH PERFORMED ON GROUND. CLEARED.
AIRCRAFT IS REPORTING REPETITIVE APU DMM CIRCUIT FAULT, 49-72105. GROUNDED - YES. PERFORMED TROUBLESHOOTING IAW B737-9 IFIM TASK 49-70-00-810-808. NO FAULTS FOUND. REMOVED AND REPLACED DATA MEMORY MODULE PREXCAUTIONARY IN REFERENCE WITH B737-9 AMM 49-72-11.
WING ANTI-ICE "LEFT VALVE" LIGHT ILLUMINATED AFTER WING ANTI-ICE SELECTED ON. APPLIED QRH PROCEDURE AND TURNED SWITCH OFF. LIGHT EXTINGUISHED. GROUNDED - YES. PERFORMED B737-9 AMM TASK 30-11-11-200-801 OPS CHECK GOOD FOUND NO FAULTS.
FMC DISAGREE DURING PREFLIGHT. GROUNDED - YES. PULLED C/B'S ACCORDING TO QRH FMS-NAVIGATION. FMC DISAGREE. RESET SUCCESSFUL.
WHILE ACCOMPLISHING ASA T/C 05-020-01 FOUND MAINTENANCE MESSAGE 73-43855 NO. 2 ENG INLET T12 TEMP SENSOR DISAGREE. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM TASK G73-20-00-810-830. FOUND FAULT TO BE INTERMITTENT.
RIGHT WING ANTI-ICE VALVE DID NOT OPEN W/ WING ANTI-ICE SWITCH ON. GROUNDED - YES. PERFORMED WING ANTI-ICE VALVE HEALTH CHECK ON RH WING TAI REF ASA T/C MAX-30EA-24968. OPS CHECK NORMAL AND NO DEFECTS NOTED. A/C OK FOR CONTINUED SERVICE.
WXR FAIL ILLUMINATED. GROUNDED - YES. WEATHER RADAR PROCESSOR REMOVED/REPLACED IAW B737-9 AMM 34-41-42 SYSTEM TESTED OK.
TEMPORARILY LOST BOTH NAV DISPLAYS WITH VTK APPEARING ON BOTH NAV DISPLAY SCREENS AND FMC BLANKING / DEFAULTING TO MENU MODE. SYSTEM SELF-CORRECTED IN 40-60 SECONDS. ALL NORMAL. GROUNDED - YES. VERIFIED OPERATION OF FMC NORMAL REF B737-9 AMM 34-61-00-710-801.
RIGHT ALPHA VANE SENSOR CAUTION LIGHT REMAINED ILLUMINATED. GROUNDED - YES. REMOVED/REPLACED R/H AOA SENSOR REF B737-9 AMM 34-21-05. OPS CHECK GOOD.