N942AK
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
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
36 reports on file, 2022-07-09 – 2023-11-10.
Part: VALVE — FAULTY (#1 ENGINE) · airframe 5,450 hrs · 1,576 cycles
"MAINT" LIGHT AFTER LANDING. GROUNDED - YES. FOUND ACTIVE FAULT ISOLATION 36-11020, ACCOMLISHED IFIM 36-11-00-810-802 PNEUMACTIC ENGINE ON SYSTEM TEST AMM 36-00-00-730-801 MAINT LIGHT REMAINS ON,69096. REMOVED AND REPLACED THE #1 ENG HPSOV REF AMM 36-11-07-000-801, LEAK TEST LRU REPLACMENT TEST AND SYSTEM TEST OK, SEAMC DOUG NOTIFIED , MAINT LIGHT EXTINGUSHED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 5,450 hrs · 1,576 cycles
WING ANTI-ICE "L VALVE " LIGHT AND ASSOCIATED ASYMMETRIC WING ICE ON DESCENT. GROUNDED - YES. ACCOMPLISHED WING-ANTI-ICE VLV CHECK AND PERFORMED AN OPERATIONAL TEST ON THE WING-ANTI OPEN/CLOSED AFTER INTRODUCE PNEUMATIC SYSTEM OPS CHECK GOOD. ETOPS SIGNIFICANT GROUND TEST OPS CHECK GOOD. IN REF. TO AMM 30-11-00.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 5,417 hrs · 1,569 cycles
L WING ANTI-ICE VALVE CAUTION LIGHT ILLUMINATED WHEN WING ANTIICE SELECTED DURING DESCENT. GROUNDED - YES. PERFORMED IFIM TASK 30-11-00-810-808 L/H WING ANTIICE VALVE LIGHT EXTINGUISHED. A/C OK FOR SERVICE. SEAMC NOTIFIED.2821712.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 5,419 hrs · 1,570 cycles
"L" VALVE AMBER WING ANTI-ICE LIGHT ILLUMINATED APON WING ANTIICE SWITCH MOVED TO ON. GROUNDED - YES. ACCOMPLISHED MM TASK 30-11-11-200-801.L. THERMAL WING ANTI-ICE HEALTH CHECK. CYCLED VALVE 3 TIMES TO CLER BLOCKAGE. ALL VALVE INDICATIONS NORMAL. NO WING ANTI-ICE FAULTS.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 5,235 hrs · 1,523 cycles
MAINT LIGHT ILLUMINATED ON OVERHEAD PANEL. GROUNDED - YES. FOUND MAINT MESSAGE 36-11020 ENG 1 HPSOV IS NOT IN COMMANDED POSITION DETECTED BY IASC-LEFT. PERFORMED B737-9 FIM TASK 36-11-00-810-802 PERFORMED PNEUMATIC ENGINE ON SYSTEM TEST REF B737-9 AMM 36-00-00-730-801 TEST PASSED MAINT MESSAGE WAS AN INTERMITTENT FAULT MAINT LIGHT EXTINGUISHED NO DEFECTS NOTED AT THIS TIME.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 5,163 hrs · 1,504 cycles
FFMG DEFECT - FMC DISAGREE INDICATED. GROUNDED - YES. FMC L + R 100 --> 6R SENSOR INTERROGATION INDICATES A STEADY SYNC ERROR. 8 CBS OPENED/TAGGED/UNTAGGED/CLOSED DURING MAINTENANCE. ACCOMPLISHED FMCS OPERATIONAL TEST PER B737-9 AMM 34-61-00-710-801 OBSERVING RESTORED OPERATION AND CORRECT INDICATIONS. ETOPS GROUND VERIFICATION SUCCESSFUL.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 5,112 hrs · 1,487 cycles
AFTER LANDING ATTEMPTED TO START APU. APU FAULT LIGHT ILLUMINATED. RAN QRH . AFTER 5 MINS ATTEMPED RESTART.APU FAULT LIGHT ILLUMINATED A SECOND TIME. POSITIONED APU START SWITCH TO OFF. GROUNDED - YES. ON DEFERRAL.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 5,083 hrs · 1,480 cycles
#1 ENG FOUND FAULT NUMBER 73-43850, ENG FAN INLET (T12) SENSOR DO NOT AGREE. GROUNDED - YES. PERFORMED IFIM INITIAL EVALUATION PER B737-9 IFIM G73-21-00-810-937 FOUND NO LONGER ACTIVE. NO OTHER DEFECT NOTED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,998 hrs · 1,457 cycles
WHILE PERFORMING, T/C 05-020-01 FOUND " ENG 1 EEC 2 " MSG ON SCHEDULED MAINTENANCE TASK DISPLAY SYSTEM. GROUNDED - YES. ON DEFERRAL.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,998 hrs · 1,457 cycles
WHILE PERFORMING, T/C 05-020-01 FOUND " ENG 2 EEC 2 " MSG ON SCHEDULED MAINTENANCE TASK DISPLAY SYSTEM. GROUNDED - YES. ON DEFERRAL.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,759 hrs · 1,382 cycles
ELEC LIGHT ON TOUCH DOWNALSO HEADING/MAP RANDOMLY ROTATED 20 DEGREES L+R WITH BRAKES SET WITH AURAL AND VISUAL WARNING FOR SPEEDBRAKE. GROUNDED - YES. REGARDING THE HEADING/MAP SLEWING LEFT/RIGHT WITH SPEEDBRAKE WARNINGS. THIS IS A KNOWN ISSUE DUE TO FMC SOFTWARE U13 THAT OCCURS AFTER LANDING WITH THE A/C BEING STATIONARY FOR SOME TIME. NO FAULTS MESSEGES NOTED ON THE OMF AT THIS TIME, REF FLEET TEAM DIGEST 737MAX-FTD-34-17003.BITE TESTED ELECTRIC PANEL, FOUND "AUX BAT CHGR INOP I" MESSEGE. PERFORMED IFIM 24-31-00-810-807,, BATTERY DISCHARGE CHECK WAS WITHIN LIMITS. BITE CHECK OF ELECTRIC PANEL SHOWS NO FAULTS. NO HISTORY 30 DAYS.
Part: PROBE — FAULTY (LEFT FWD EXT FUS) · airframe 4,664 hrs · 1,357 cycles
IN CRUISE, AT FL370, RECVD TEMP PROBE "A" MASTER CAUTION. GROUNDED - YES. REMOVED AND REPLACED TAT PROBE IAW AMM 34-21-06-400-801 OPS CK GOOD SEAMC JEFF NOTIFIED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,576 hrs · 1,329 cycles
WHEN SELECTION WEATHER RADAR ON THE NAV DISPLAYS SHOWS WXR FAIL. GROUNDED - YES. NO HISTORY OF FAULT. PERFORMED WXR OPERATIONAL TEST REF MM 34-41-00-710-801 & OPS NORMAL NO FAULTS.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,323 hrs · 1,263 cycles
APU LOW PRESSURE LIGHT ILLUMINATED. SUCCESSFUL START ON SECOND ATTEMPT AT GATE. GROUNDED - YES. PER LP 60721533, MEL 49-99A (ETOPS) APU ON DEMAND PROGRAM, APU CONTINUOUS OPERATION (ETOPS) AND C/N 31035942. CSS SUCCESSFUL PER MCC. MX NOTED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,253 hrs · 1,240 cycles
APU FAILS TO ROTATE / TURN ON MULTIPLE ATTEMPTS MADE AMBER LIGHT TURN ON. GROUNDED - YES. RAN FIM 49-41012, CONSEQUENTLY RUNNING BITE PROCEDURE TASK/AMM 49-61-00. MAIN. MSG CLEARED. FAULT PROVES TO BE INTERMITTENT. SEAMC LANCE NOTIFIED. THIS CLEARS MEL 49-11-01. APU PLACED ON DEMAND MEL 49-99A ON LP 60721533.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,256 hrs · 1,241 cycles
GE CNR 20230730051 ENG 1 S/N 60A529 IS GENERATING ALERTS FOR PS3 OUT OF RANGE, PS3 DISAGREE FAULTS OR P3B PRESSURE DISAGREE FAULTS . ICE/WATER BLOCAGE IS SUSPECT AND PSS BLOWOUT REQUIRED. (#PRI1/ETOPS). GROUNDED - YES. (RESOLVED ON W/O: 1963326 TASKCARD: N/R-00002 ) CW T/C TSR. T/C 73-ASA-01 COMPLETE. ENG 1 FAULT HISTORY: MSG 77-09002 ENG 1 EEC CH B HAS INTERNAL FAULTMSG 73-43302 COMPRESSOR DISCHARGE PRESSURE (PS3) SENSOR IS OUT OF RANGEMSG 78-44341 TR LEFT SLEEVE POSITION SENSOR SIGNAL IS OUT OF RANGEMSG 78-44461 TR RIGHT SLEEVE POSITION SENSOR SIGNAL IS OUT OF RANGEAMM TEST NO. 35 AND 36 COMPLETE.SEAMC MITCH NOTIFIED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,214 hrs · 1,232 cycles
AFTER LANDING MAINT LIGHT ILLUMINATED. GROUNDED - YES. (RESOLVED ON W/O: 1961265 TASKCARD: N/R-00004 ) REVERSED MAINTENANCE PROCEDURES. FOUND FAULT CODE 74-42543. TROUBLESHOT PER IFIM G74-00-00-810-841. PERFORMED ENGINE 2 EEC IGNITION SYSTEM TEST REF AMM 71-00-00. TEST GOOD SEAMC JOE NOTIFIED. PER IFIM THIS WAS AN INTERMITTENT FAULT. THIS CLEARS MEL 74-00-01C. SEAMC JOE NOTIFIED. PLACARDS REMOVED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,035 hrs · 1,170 cycles
ATTEMPTED TWO APU STARTS AFTER LANDING IN SEA. BOTH RESULTED IN AMBER FAULT LIGHTS. GROUNDED - YES. FAULT CODE 49-41012 IS DRIVEN BY CORRELATED FAULT 49-41254 (START CONVERTER UNIT SHOWS START SYSTEM INOP). BOTH FAULTS SHOW NOT ACTIVE, PER B737-9 IFIM TASK 49-40-00-810-818, FAULTS WERE INTERMITTENT. RAN APU MULTIPLE TIMES, APU STARTS NORMALLY AND SUPPLIES POWER AND AIR NORMALLY.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,017 hrs · 1,166 cycles
WXR FAIL DISPLAYED WHEN RADAR IS TURNED ON - ALL MODES SELECTED ON RADAR CONTROL PANEL. GROUNDED - YES. ON GROUND OMF SHOWS NO ACTIVE FAULT RELATED TO WEATHER READAR. HOWEVER IFIM PERFOMED 34-41-00-810-836. WXR OPERATIONAL TEST PASS AIRCRAFT OK FOR SERVICE.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 3,945 hrs · 1,146 cycles
WX RADAR FAILED INFLIGHT BOTH NDS. GROUNDED - YES. PERFORMED OPERATIONAL TEST OF WEATHER RADAR, IAW B737-9 AMM 34-41-00-710-841. OPS CHK GOOD ON GROUND.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 3,694 hrs · 1,072 cycles
OVERHEAT ON RIGHT SIDE WINDOW HEAT ON THE GROUND. GROUNDED - YES. RESET AND EXTINGUISHED WITH THE QRH.
Part: MODULATING VALVE — UNKNOWN (#2 ENGINE) · airframe 3,612 hrs · 1,048 cycles
WHILE PREFORMING ASA T.C 31-005-00 FOUND MAINTENCE SCHEDULED TASK MESSAGE "BLEED FAMV RVDT R". GROUNDED - YES. FOUND LATCHED MESSAGE FAULT 36-12031. C/W B737-9 FIM 36-12-00-810-804 STEP A,B,C1. REMOVED AND REPLACED #2 ENGINE FAMV REF B737-9 AMM 36-12-03. OPS CHECK GOOD.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 3,110 hrs · 884 cycles
LEFT VALVE LIGHT(WING ANTI-ICE) ILLUMINATES WHEN SWITCH IS TURNED ON. GROUNDED - YES. PERFORMED LT WING THERMAL ANTI ICE VALVE HEALTH CK REF B737-9 FIM 30-11-11-200-801 LT WING ANTI ICE VALVE HEALTH CK PASSED. NO EXISTING FAULTS LOGGED ON MAINT MSG PG. A/C OK FOR CONT SVC.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 2,647 hrs · 772 cycles
L VALVE LIGHT ILLUMINATED WHEN POSITIONING WING ANT ICE SWITCH ON. EXTINGUISHED WHEN TURNING OFF. GROUNDED - YES. PERFORMED L WING INTO ICE OPS TEST REF B737-9 AMM 30-11-11-710-801. OPS TEST GOOD.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 2,567 hrs · 752 cycles
WXR FAIL ENROUTE. GROUNDED - YES. ACCOM RESET OF WXR RT AND PERFORMED WXR OPS TEST REF B737-9 AMM 34-41-00. WXR TEST NORMAL NO OTHER FAULTS NOTED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 2,442 hrs · 715 cycles
WHILE ACCOMPLISHING T/C 31-005-00 FOUND FAULT PACK CONTROL CHANNEL R. GROUNDED - YES. DEFERRED PACK CONTROL CHANNEL R FAULT PER T/C 31-005-00. ALLOWABLE REPAIR TIME LIMIT DEFERRAL OF 150 FH. RE-ACCOMPLISHED T/C 31-005-00 FOUND NO FAULT.
Part: IGNITER — FAILED (#1 ENGINE) · airframe 2,021 hrs · 588 cycles
NO LIGHT OFF WHEN STARTING ENGINE #1. GROUNDED - YES. #1 ENG RIGHT IGNITER PLUG REPLACED REF B737-9 AMM 74-21-02.
Part: HEATER — INOPERATIVE (TAT PROBE) · airframe 1,851 hrs · 536 cycles
DURING CRUISE FL 350 TEMP PROBE ILLUMINATED. GROUNDED - YES. T/S PROBE HEAT REF B737-9 FIM 30-31-00-B01-B05 PROBE DOES NOT HEAT. REPLACED TAT PROBE PER B737-9 AMM 34-21-06-400-801. OPS CHECK NORMAL.
Earlier reports · 2022 · 8 reports
2022
Part: ENGINE — ABNORMAL (NR 1) · airframe 1,749 hrs · 504 cycles
ABORTED #1 ENGINE START IGNITION ON RIGHT SIDE, MOVED IGNITION SWITCH TO LEFT SIDE, GOT A GOOD #1 ENGINE START. GROUNDED - YES. FOUND MAINT MESSAGE 74-42541. ACCOMPLISHED B737-9 IFIM TASK G74-00-00-810-839 INITIAL EVAL. ACCOMPLISHED #1 ENGINE IGNITION TEST 18 B737-9 AMM G71-00-00-730-804-GOO AND TEST 19 AMM 71-00-00-730-805-G00. BOTH TEST PASSED. ACCOMPLISHED #1 ENGINE START WITH IGNITION RIGHT. OPS CHECK GOOD.
Part: CONTROL UNIT — FAULTED (WINDOW OVERHEAT) · airframe 1,505 hrs · 432 cycles
WINDSHIELD RIGHT FWD OVERHEAT ON LANDING. GROUNDED - YES. REF B737-9 IFIM 30-41-00-810-829: CYCLING WINDOW HEAT SWITCH AFTER COOLING PERIOD. DOES NOT RESOLVE OVERHEAT INDICATION. WINDOW REMAINED COOL TO TOUCH. ACCOMPLISHED RESPECTIVE WHCU BITE PROCEDURE (WITHIN B737-9 AMM 30-41-11-710-80D. CURRENT FAULT IS P5-9, WITH WHCU-LRU SET FOR LAST SEVERAL LEGS. (NOTE: WHCU BIT-LAMP RESET NOT CLEAR CURRENT FAULT EITHER.) REMOVED AND INSTALLED NEW WHCU M323. PERFORMED SYS OPS TEST REF AMM 30-41-11-400-801. SYS OPS NML.
Part: WARNING LIGHT — FALSE INDICATION (RT WINDOW) · airframe 1,501 hrs · 431 cycles
R FWD WINDSHIELD OVERHEAT LIGHT ILLUMINATED. RAN ASA QRH PROCEDURE AND LIGHT CAME ON AGAIN. GROUNDED - YES. ACCOMPLISHED WHCU SYSTEM TEST GOOD. OVERHEAT LIGHT EXTINGUISHED AND STAYED EXTINGUISHED IAW B737-9 AMM TASK 30-41-11-710-801.
Part: SWITCH — FAULTY (APU COMPARTMENT) · airframe 206 hrs · 67 cycles
THE APU FAILED TO START AFTER LANDING. GROUNDED - YES. REMOVED & REPLACED LOW OIL PRESS SW REF B737-9 AMM 49-94-22.
Part: UNKNOWN — FAULTY (NOSE RADOME) · airframe 187 hrs · 60 cycles
WX RADAR NOT DEPICTING ANY RETURNS WITH VISUAL CONFIRMATION OF THUNDERSTORMS IN THE AREA. GROUNDED - YES. REMOVED, REPLACED WEATHER RADAR DRIVE UNIT, OPS CHECKS GOOD IAW B737-9 AMM 34-41-11-000-803, 34-41-11-000-804, 34-41-11-400-804, 34-41-00-710-801.
Part: RADAR — INACCURATE (UNKNOWN) · airframe 184 hrs · 59 cycles
WX RADAR NOT ACCURATELY DISPLAYING THUNDERSTORM ACTIVITY. INTERMITTENT DISPLAY OF CELLS IN MANUAL AND AUTO. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM TASK 34-41-00. WEATHER RADAR OPERATIONAL TEST PER B737-9 AMM 34-41-00-710-801. OPS CHECKS GOOD. ACFT OK FOR SRVC.
Part: FMC — EXPIRED (UNKNOWN) · airframe 94 hrs · 32 cycles
NAV DATABASE EXPIRED ON 7/13/2022. GROUNDED - YES. C/W ASA TASK CARD 34-ASA-05 FLIGHT MANAGEMENT COMPUTER NAVIGATION DATABASE UPDATE.
Part: CONTROL PANEL — FAULTY (FLIGHT DECK) · airframe 32 hrs · 14 cycles
WX RADAR DOES NOT ACCURATELY DISPLAY ACTIVE WEATHER IN AUTO MODE. APPEARS FUNCTIONAL IN MANUAL MODE ONLY + AUTO MODE UNDER 40 NM RANGE. GROUNDED - YES. PERFORMED WEATHER RADAR OPERATIONAL TEST REF B737-9 AMM 34-41-00-710-801 OPS CHECK NORMAL UNABLE TO DUPLICATE ON GROUND. AS PRECAUTIONARY, REPLACED WEATHER RADAR CONTROL PANEL REF AMM 34-41-53/401 ALL REQUIRED TESTS PASSED.