N958AK
Registered owner: ALASKA AIRLINES INC, WA (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| Alaska Airlines | Operator | on 2024-12-26 | Operator named in NTSB report |
Accident & incident history
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.
18 reports on file, 2023-02-09 – 2025-05-06.
Part: LAMP — INOPERATIVE (ZONE 200) · airframe 8,986 hrs · 2,469 cycles
EXTERIOR R2 DOOR EMERGENCY LIGHT INOP. GROUNDED - YES. RELAMPED EXTERIOR R2 DOOR EMERGENCY LIGHT REF AMM 33-51-04. OPS CHECK GOOD.
Earlier reports · 2023 · 17 reports
2023
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 2,993 hrs · 824 cycles
DURING APPROACH IN ICING CONDITIONS MASTER CAUTION LIGHT WITH ANTI-ICE CAUTION ILLUMINATION, EXTINGUISHED 2 SECONDS LATER, UNABLE TO DETERMINE WHICH SYSTEM CAUSED LIGHT. GROUNDED - YES. PERFORMED INSTALLATION TEST OF WINDOW/ PITOT HEAT MODULE (P5-9) IN REFERENCE WITH AMM 30-00-02-400-801, OPS TEST GOOD. NO HISTORY ATA 30 LAST 90 DAYS.
Part: TRANSCEIVER — FAULTY (E/E RACK E6) · airframe 2,971 hrs · 817 cycles
UNABLE TO TRANSMIT ON HF#1. WE CAN RECEIVE ON BOTH HF#1 AND HF#2. TRANSMIT ON HF#2 AND GOOD SELCAL ON HF#1 AND HF#2. SATCOM WORKS GREAT. GROUNDED - YES. REMOVED & REPLACED #1 HF TRANSCEIVER PER B737-9 AMM TASK 23-11-21/401. OPS CHECK GOOD. SIDETONE AND TONE OKAY.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 2,881 hrs · 784 cycles
LEFT PACK TRIP WOULD NOT RESET. GROUNDED - YES. ON DEFERRAL.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 2,725 hrs · 746 cycles
#1 START SWITCH IS LOOSE. GROUNDED - YES. TIGHTNEDED #1 START SWITCH SET SCREW IN REFERENCE TO AMM 80-10-00-400-801-F00.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 2,463 hrs · 683 cycles
DURING ACCOMPLISHMENT OF T/C 31-005-00 #2 ENG SHOWS FAULT MSG 36-12031 " FAMV RVDT SIGNAL IS OUT OF RANGE" DETECTED BY IASC-RIGHT. GROUNDED - YES. ON DEFERRAL.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 2,382 hrs · 658 cycles
#1 ENG HAS SMT MESSAGE, ENG 1 EEC C2 WHILE PERFORMING TC 05-020-01. GROUNDED - YES. PERFORMED IFIM TASK G73-10-00-810-803 NO CORRELATED MAINTENANCE MESSAGES FOR ENG 1 EEC C2 SMT MESSAGE. ERASED SMT MESSAGE AND PREFORMED ENG 1 IDLE SYSTEM TEST, TEST PASSED. SMT MESSAGE DID NOT SHOW ON SMT DISPLAY.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 1,592 hrs · 455 cycles
TO GET A NORMAL RADAR RETURN IN AUTO OR MANUAL, GAIN NEEDS TO BE IN THE MAX POSITION. GROUNDED - YES. MDS OMF INDICATES NO FAILURES. ACCOMPLISHED WEATHER RADAR OPERATIONAL TEST W/ NO FAILURES INDICATED. ACCOMPLISHED GPWS OPERATIONAL TEST OBSERVING CORRECT WINDSHEAR ANNUNCIATIONS. CONFIRMED WXR PANEL GAIN CHANGE OUT OF 12 O'CLOCK IS REFLECTED ON NAV DISPLAY. REF B737-9 AMM 34-41-00. ETOPS GROUND VERIFICATION SUCCESSFUL.
Part: MODULATING VALVE — FAULTY (#1 ENGINE) · airframe 1,380 hrs · 399 cycles
WHILE PERFORMING T/C 31-005-00 FOUND SMT MSG "BLEED FAMV RVDT L". GROUNDED - YES. REMOVED AND REPLACED ENGINE 1 FAN AIR MODULATING VALVE FOR T/S REF IFIM TASK 36-12-00-810-803 AND AMM 36-12-03-000-801. ACCOMPLISHED ELECTRICAL LRU REPLACEMENT TEST REF AMM 36-00-00-710-801, AND PNEUMATIC, LRU REPLACEMENT TEST, ENGINE OFF-FAMV REF AMM 36-12-00-720-801. ALL TEST PASS. GROUND VERIFICATION TEST SUCCESSFUL.
Part: VALVE — FAILED (#2 ENGINE) · airframe 994 hrs · 274 cycles
ON LANDING GOT OVERHEAD MASTER CAUTION AND MAINTENANCE LIGHT REMAINED ON THRU TAXI & AFTER SHUTDOWN. GROUNDED - YES. REMOVED AND REPLACED FAN AIR MODULATING VALVE REF B737-9 AMM 36-12-03-400-801.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 781 hrs · 218 cycles
R VALVE LIGHT ILLUMINATED WHEN WING ANTI-ICE WAS SELECTED. GROUNDED - YES. ACCOMPLISHED WING THERMAL ANTI ICE VALVE OPS TEST USING APU AIR. R VALVE OPS TEST PASS REF B737-9 AMM 30-11-11-710-801.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 429 hrs · 132 cycles
R SIDE WINDOW HEAT OVERHEAT ILLUMINATED DURING CLIMBOUT. RAN CHECKLIST AND LIGHT EXTINGUISHED. GROUNDED - YES. OPS CHK NML REF B737-9 AMM 30-41-00.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 192 hrs · 69 cycles
RIGHT SIDE WINDOW HEAT "OVERHEAT" LIGHT ILLUMINATED AFTER LANDING, FOLLOW QRH PROCEDURE, LIGHT EXTINGUISHED, NORMAL OPS RESTORED GROUNDED - YES. ACCOMPLISHED WHCU BITE. BITE CHK GOOD, HISTORY SHOWS NUMEROUS SENSOR #1 FAULTS. SWAPPED PRIMARY SENSOR CONNECTOR TO SPARE SENSOR CONNECTOR REF B737-9 AMM 30-41-00 SUBTASK 960-001 OP CHK GOOD. RH SIDE WINDOW NOW CONFIGURED FOR SPARE SENSOR. GROUND VERIFICATION SUCCESSFUL.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 147 hrs · 54 cycles
WINDOW HEAT FWD R SIDE #2 "OVERHEAT" LIGHT. RAN QRH, OPS NORMAL AFTER. GROUNDED - YES. ACCOMPLISHED WHCU SYSTEM TEST REF B737-9 AMM 30-41-11, OPS CHK GOOD. GROUND VERIFICATION SUCCESSFUL.
Part: ACTUATOR — FAULTY (APU AIR INLET) · airframe 126 hrs · 47 cycles
CREW REPORTS MAINT LIGHT ON, STATUS SHOWS APU DOOR. GROUNDED - YES. FOUND MAINT MSG 49-15218, "INLET DOOR DID NOT CLOSE." VERIFIED INLET DOOR FULLY CLOSED. MAINT LIGHT INHIBITED FOR ACTIVE MSG REF MEL SEC 1A. RELEASED PER MEL 49-11-01, APU INOP. REMOVED AND REPLACED AIR INLET DOOR ACTUATOR REF B737-9 AMM 49-15-31.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 54 hrs · 25 cycles
ON LANDING ROLLOUT, OVERHEAD MASTER CAUTION ILLUMINATED & MAINT AMBER LIGHT ON THE OVERHEAD WAS ON. GROUNDED - YES. ACCOMP IFIM TASK 49-10-00-810-806. APU BITE, NO ACTIVE OR FAULTS. ACCOMP APU AIR INLET DOOR TEST, NO FAULTS IAW AMM 49-15-00-710-801. APU MASTER SWITCH PLACED TO ON APU INLET POSITION SHOWS OPEN WITHIN 14 SECS, WHEN APU MASTER SWITCH PLACED BACK OFF, TAKES APU INLET 37 SECS TO SHOW NOT OPEN. REF IFIM TASK 49-10-00-810-806 ITEM A(3) LONGER THAN 30 SECS WILL DRIVE THIS FAULT 49-15218. PERFORMED IFIM TASK 49-10-00-810-806 APU BITE SHOWED NO ACTIVE OR EXISTING FAULTS PERFORMED APU INLET DOOR TEST, NO DEFECTS IAW AMM 49-15-00-710-801. OPS APU SEVERAL TIMES IAW AMM 49-11-00-860-801. OPS NORMAL.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 26 hrs · 14 cycles
R/H SIDE WINDOW OVERHEAT ILLUMINATED ON TAXI OUT. GROUNDED - YES. PER B737-9 IFIM 30-41-00-810-931, ACCOMPLISHED INITIAL EVALUATION. WINDOW HEAT SYSTEM TEST OPS NORMAL. REF B737-9 AMM 30-41-00-710-801.
Part: FADEC — FAULTED (#1 ENGINE) · airframe 22 hrs · 11 cycles
AFTER LANDING REVERSER LIMITED, ENGINE CONTROL, AND "MAINT" LIGHTS CAME ON AT OVERHEAD PANEL. GROUNDED - YES. DURING TROUBLESHOOTING PER B737-9 IFIM 73-21-00-810-847 FOR MESSAGE 73-42701, EXISTING FAILURE MESSAGES 73-42362 (FUEL METERING SHUTOFF VALVE FAILED OPEN) AND 77-09002 (ENG 1 CHANNEL B INTERNAL FAULT) POPULATED. #1 ENG EEC B KEPT RESETTING TRIGGERING MASTER CAUTION & ENGINE CONTROL LIGHT. REMOVED & REPLACED #1 ENG EEC B. ALL TESTS PASS. NO MORE FAULTS GENERATED. REF B737-9 AMM 73-21-05. DUAL ENGINE RUN ACCOMPLISHED. NO FAULTS GENERATED. (REF ASA LP 60380015).