N926AK
Registered owner: BANK OF UTAH TRUSTEE, UT (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.
44 reports on file, 2021-12-15 – 2023-11-02.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,978 hrs · 2,022 cycles
#1 FMC FROZEN ON ACARS PAGE. NO FUNCTION BUTTONS WORK. GROUNDED - YES. OMF SHOWS NO ASSOCIATED PRESENT LEG OR EXISTING FAULTS. FAULT HISTORY SHOWS FC 34-69001 / MORE THAN ONE SYS HAS NO IMPUT FROM FMC-1. OPENED FMCS COMPUTER & MCDU CB, CLOSED CB'S. NO ACTIVE FAULTS PRESENT. REF IFIM 34-61-00-810-836.
Part: PROCESSOR — FAULTY (WX RADAR) · airframe 6,756 hrs · 1,962 cycles
AMBER PWS FAIL AND WXR FAIL ON BOTH NDS DURING TAKEOFF. GROUNDED - YES. (RESOLVED ON W/O: 1973307 TASKCARD: N/R-00001 ) FOUND FAULT CODE: "34-43100 WXR PROCESSOR HAS AN INTERNAL FAULT" ON LAST THREE FLIGHT LEGS. REMOVED & REPLACED WXR PROCESSOR PER AMM TASK 34-41-42/401. OPS CHECK GOOD. CLEARS MEL 34-41-01A. PLACARDS REMOVED. SEAMC MITCH NOTIFED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,595 hrs · 1,923 cycles
OVERHEAD AMBER MAINT LIGHT ILLUMINATED AFTER TOUCHDOWN. GROUNDED - YES. FOLLOWED B737-9 IFIM TASK G71-00-00-810-938 AND IFIM TASK G71-00-00-810-836, INITIAL EVALUATION, ALL TEST GOOD. NO FURTHER DEFECTS.
Part: VALVE — UNKNOWN (#1 ENGINE) · airframe 6,504 hrs · 1,894 cycles
#1 ENG HPSOV MANUAL LOCK BOLT HELICOIL INSERT UNTHREADED FROM VALVE. MIG 2C 40-0051333 INIT. GROUNDED - YES. INSTALLED NEW HELICOIL INSERT IN HPSOV VALVE. REF HONEYWELL CMM 36-11-82 2G PAGE 6004. 74772. REINSTALLED #1 ENG HPSOV REF AMM 36-11-07. OPS CHECK, LEAK CHECK GOOD. MIG 2C 40-0051333 CLOSED.
Part: FILTER — DIRTY (#1 ENGINE) · airframe 6,429 hrs · 1,868 cycles
#1 ENGINE IS ALERTING FOR OIL FILTER DELTA PRESSURE INCREASE AND APPROACHING OIL FILTER BYPASS INDICATION. (#PRI1/ETOPS) CNR 20230902059DO NOT EXTEND. GROUNDED - YES. (RESOLVED ON W/O: 1967631 TASKCARD: N/R-00004 ) CHECKED OMF MX MESSAGES AND EEC, NO FAULTS FOUND. REMOVED AND REPLACED #1 ENG OIL FILTER REF AMM 79-21-07. FOUND DEBRIS IN OIL FILTER. CONTACTED DWIGHT AND SENT FILTER TO SEA TECH SERVICES.PERFORMED A VISUAL INSPECTION OF ODMS SENSOR REF AMM 79-00-00-210-804-G00, NO CONTAMINATION NOTED.PERFORMED STARTER MAG PLUG INSPECTION REF AMM 80-11-09-200-801-G00 AND SCAVENGE SCREENS INSPECTION REF AMM 79-21-04-211-801-G00, NO CONTAMINATION NOTED. TSR714927 CLOSED, SEAMC SCOTT NOTIFIED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,374 hrs · 1,852 cycles
MAINT LIGHT ON OVERHEAD PANEL ILLUMINATED DURING LANDING ROLL. GROUNDED - YES. MAINT. LIGHT DETERMINED TO BE #2 ENGINE OIL DEBRIS. PERFORMED ODMS INSPECTION REF AMM 79-00-00-710-804-G00. NO CHIPS FOUND ON SENSOR. RESET CHIP COUNT AND PERFORMED IDLE ENGINE LEAK CHECK. LEAK CHECK GOOD, MAINT. LIGHT EXTINGUISHED AND DID NOT RETURN. REF LP 60665067 FOR ODMS DEFERRAL/TSR.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,378 hrs · 1,853 cycles
MAINT LIGHT ON AFTER LANDING. GROUNDED - YES. C/W FAULT INTEROGATION FOR MX MSG PER AMM 31-65-00. FOUND ENGINE 2 OIL DEBRI STRATUS MSG REF IFIM G79-20-00-810-806. LATCHED MSG ERASED. MAINT LIGHT EXTINGUISHED SEAMC MARK NOTIFIED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,348 hrs · 1,844 cycles
ON LANDING ROLLOUT MAINT LIGHT ILLUMINATED. GROUNDED - YES. REF W/O #1967096 OM L/P 60665066 FOR TSR714887 #2 ENGINE ODMS. DEBRIS FOUND ON ODMS SENOR ONLY. PHOTOS AND DEBRIS SENT TO POWERPLANT ENGINEERING AND TECH SERVICES. NO OTHER DEFECTS NOTED. MAINT LIGHT IS NO LONGER ILLUMINATED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 6,096 hrs · 1,771 cycles
FMC DISAGREE ON BOTH NAV DISPLAY. GROUNDED - YES. RECYCLED C/B'S FOR FMC'S PER IFIM 34-61-00-810-924; RESETED TO NORMAL. PERFORMED FMC OPERATIONAL TEST NORMAL. REF AMM 34-61-00-710-801.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 5,890 hrs · 1,709 cycles
#1 SPAR VALVE CLOSED LIGHT ON BRIGHT BLUE. GROUNDED - YES. REF B737-9 WDM 28-21-11 & B737-9 AMM 20-60-01 INSPECTED C/B P6-3 B-4 THAT WAS FOUND "OUT" & RESET C/B. ACCOMPLISHED #1 ENG SPAR VALVE TEST REF A MM 28-22-00-710-801. OPS TEST OK. RAN #1 ENG PRECAUTIONARY NO DEFECTS NOTED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 5,190 hrs · 1,517 cycles
FMC DISAGREE MESSAGE ON BOTH ND'S. GROUNDED - YES. PERFORMED B737-9 IFIM 34-61-00-810-918. 1 EA C/B ON P18-2 & 1 EA ON P6-1 OPENED, RESET. FMC DISAGREE MESSAGE CLEARED. ETOPS GND VERIFICATION TEST PASS.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,968 hrs · 1,457 cycles
DURING CRUISE WITH WEATHER RADAR ON WITH RECEIVED PWS FAIL AND WX FAIL TURNED OFF THEN ON OPS NORMAL. GROUNDED - YES. PERFORMED B737-9 FIM TASK 34-41-00-810-818 AND WEATHER RADAR OPERATIONAL TEST PER B737-9 AMM 34-41-00-710-801. OPS CHECK NORMAL AT THIS TIME.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,824 hrs · 1,401 cycles
FUELER REPORTS LEAK AT FUEL RECEPTACLE. GROUNDED - YES. REPLACED AND RESECURED HARDWARE ON PRESSURE REFUELING RECEPTACLE REF B737-9 AMM TASK 28-21-11-400-801.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,709 hrs · 1,370 cycles
WINDOW OVERHEAT R2 ON GROUND IN DENVER GROUNDED - YES. PERFORMED QRH 3.7 AFTER RESET CAUTION STAYED EXTINGUISHED.
Part: CHARGER — INOPERATIVE (E/E BAY, E3-3) · airframe 4,322 hrs · 1,263 cycles
OVERHEAD ELEC ANNUNCIATOR ILLUMINATED ON TAXI OUT. GROUNDED - YES. REF B737-9 IFIM 24-31-00-810-802 BITE SHOWS "AUX BATT CHGR INOP" REPLACED AUX CHARGER REF B737-9 AMM 24-31-31/401.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,281 hrs · 1,251 cycles
ON DESCENT WITH WING ANTI-ICE ON, "R VALVE" LIGHT ILLUMINATED. WITH SWITCH IN THE OFF POSITION, LIGHT EXTINGUISHED. GROUNDED - YES. REF ASA DATA SUPPLEMENT, C/W B737-9 AMM 30-11-11-710-801. OPS TEST OF WING THERMAL ANTI-ICE VALVE. CYCLED MULTIPLE TIMES. ALL OSP TESTS PASSED. NO FURTHER ACTIONS REQUIRED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,145 hrs · 1,220 cycles
FMC 1 AND 2 BOTH RESET AT FL310 AND 20 MINUTES INTO FLIGHT. CYCLED FLIGHT DIRECTOR'S AND FMC'S 1 AND 2 RESUMED OPS. GROUNDED - YES. REF B737-9 IFIM TASK 34-61-00-810-836 PER FIM FAULT WAS INTERMITTENT NO ASSOCIATED FDE OR FAULTS. ALL REQUIRED TESTS PASSED.
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 4,117 hrs · 1,210 cycles
FMC DISAGREE MSG ON CDU. GROUNDED - YES. CYCLED FMCS CMPTR 1/2 C/BS REF B737-9 IFIM 34-61-00-810-918. OPS NML.
Part: FMC — FAULTED (LEFT) · airframe 3,632 hrs · 1,074 cycles
MAP FAIL FLAG ON FO ND AND NO VSPD ON FO PFD. GROUNDED - YES. REF B737-9 IFIM TASK 31-00-00-810-803 FOUND R/H FMC AND L/H FMC INT FAULT USED TRANSFER SWITCH AND FAULT RESET WITH NO ACTIVE OR FDE.
Earlier reports · 2021–2022 · 25 reports
2022
Part: ENGINE — MAKING METAL (NR 2) · airframe 3,552 hrs · 1,051 cycles
#2 ENGINE OIL FILTER BYPASS CAUTION. ALL ENGINE BLOCK BLINKING CONTINUOUSLY. GROUNDED - YES. FOUND FAULT 79-42895 "OIL FILTER IMPENDING BYPASS" IN PRESENT LEG FAULTS. INTERROGATED ENG 2 EEC AND CONFIRMED #2 ENG OIL IMPENDING BYPASS MX MSG 79-42895. PERFORMED ODMS SENSOR INSPECTION, B737-9 AMM TASK G79-00-00-210-004-G000. AS PART FO THE IFIM TASK G79-32-00-810-840. FOUND PARTICLES ON #2 ODMS SENSOR GREATER THAN 0.0004 IN (0.10 MM). PARTICULATE FOUND IS OUT OF LIMITS. REF AMM 79-00-00-200-003-600. COMPLETED ODMS SENSOR INSPECTION AMM TASK 79-00-00-210-801-G00 UP TO STEP G. 1. B. 2) CHIP COUNT IS GREATER THAN 0. REMOVED #2 ENGINE ESN # 60A299 REF. ASA W/O # 1936265 ASA T/C # 71-ASA-01.
Part: FMC — FAULTED · airframe 3,537 hrs · 1,045 cycles
FMC DISAGREE MESSAGE ON GROUND. GROUNDED - YES. COMPLETED CHECKLIST SUCCESSFULLY.
Part: FMC — FAULTED · airframe 3,526 hrs · 1,040 cycles
FMC DISAGREE. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM 34-61-00-810-918, FAULT SYMPTOM NO LONGER ACTIVE, BOTH FMC'S NORMAL.
Part: ANTI-ICE VALVE — FAULTED (RIGHT WING) · airframe 3,492 hrs · 1,032 cycles
ENGINEERING REQUEST FOR RH WING ANTI ICE VALVE LIGHT ILLUMINATION ON DESCENT. GROUNDED - YES. REMOVED AND REPLACED RH WING ANTI-ICE VALVE REF B737-9 AMM 30-11-11. OPS AND LEAK CHECK GOOD.
Part: FMC — FAULTED · airframe 3,403 hrs · 999 cycles
FMC DISAGREE ON CDU. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM 34-61-00-810-918. RESET 2 C/B. OPS CHECK GOOD. GROUND VERIFICATION TEST GOOD.
Part: FMC — FAILED (CAPTAIN'S) · airframe 2,982 hrs · 886 cycles
CAPT FMC FAIL WITH VTK AND BOTH MCDU'S BLANK. SYSTEM FIXED ITSELF AND OPERATED NORMALLY BEFORE PERFORMING QRH. GROUNDED - YES. PER B737-9 FIM 34-61-836 FMC OPS NORMAL.
Part: ANTI-ICE VALVE — FAULTED (LT WING) · airframe 2,847 hrs · 850 cycles
DURING DESCENT, SELECTED WING ANTI-ICE SWITCH ON AND L VALVE LIGHT ILLUMINATED. TURNED WING ANTI-ICE SWITCH OFF AND LIGHT WENT OUT. IT OCCURRED AS WE WERE DESCENDING THROUGH 9,000' FEET. GROUNDED - YES. REMOVED AND REPLACED L WING ANTI-ICE VALVE REF B737-9 AMM 30-11-11.
Part: ANTI-ICE VALVE — FALSE INDICATION (UNKNOWN) · airframe 2,822 hrs · 844 cycles
L VALVE WING ANTI ICE ILLUMINATED AFTER SELECTING IT ON AT 19,000' TURNED IT BACK ON AROUND 9000' AND IT DID NOT RE-ILLUMINATE. GROUNDED - YES. REF B737-9 IFIM TASK 30-11-00-810-808 VALVE OPERATES SMOOTHLY. PERFORMED WING THERMAL ANTI ICE VALVE OPS TEST REF B737-9 AMM 30-11-11. OPS NORMAL. GROUND VERIFICATION GOOD.
Part: LIGHT — INOPERATIVE (UNKNOWN) · airframe 2,781 hrs · 831 cycles
EMERGENCY OVERHEAD LIGHT @ ROW 23 INOP. GROUNDED - YES. PERFORMED CONTINUITY CHECK OF PIN B AT D14714 TO GROUND, DURING VISUAL INSPECTION FOUND BROKEN GROUND PIN AT TERMINAL BLOCK GD8022-DC. CRIMPED ON NEW PIN ON WIRE W4148-0225-20 AND REINSTALLED PIN INTO TERMINAL BLOCK GD8022-DC IAW B737-9 SWPM 20-30. PERFORMED OPERATIONAL TEST OF THE EMER LIGHTS IAW B737-9 AMM 33-51-00. OPS CHECK GOOD.
Part: BRACKET — LOOSE · airframe 2,621 hrs · 781 cycles
F.O.'S FMC METAL BRACKET/HANDLE IS LOOSE. GROUNDED - YES. ON DEFERRAL.
Part: HEADS-UP DISPLAY — INACCURATE (UNKNOWN) · airframe 2,621 hrs · 782 cycles
HGS WORKED FINE. AUTOLAND TRIED TO LAND ABOUT 50' LEFT OF CENTER LINE. RUNWAY 16R. ILS CRITICAL AREA CLEAR, CALM WINDS. GROUNDED - YES. PERFORMED B737-9 IFIM 22-11-00-810-D63. PERFORMED LAND VERIFY TEST, B737-9 AMM TASK 22-11-00-700-801. ALL TESTS GOOD.
Part: APU — FAILED (AFT CARGO) · airframe 2,573 hrs · 767 cycles
FAULT LIGHT CAME ON TWICE WHEN STARTING APU. GROUNDED - YES. REMOVED AND REPLACED APU ECU REF B737-9 AMM 49-61-12.
Part: MODULATING VALVE — FAULTY (#2 ENGINE) · airframe 1,988 hrs · 589 cycles
MAINT LIGHT ON OVERHEAD PANEL WITH BLEED FAMV R INDICATION. GROUNDED - YES. REMOVED AND REPLACED RH FAN AIR MODULATING VALVE REF. B737-9 AMM 36-12-03/401.
Part: MODULATING VALVE — WARNING LIGHT (UNKNOWN) · airframe 1,980 hrs · 586 cycles
ON LANDING, GOT MASTER CAUTION OVERHEAD MAINT. LIGHT. GROUNDED - YES. STATUS PG. SHOWS BLEED FAMV R MSG. WITH INBD FLT DECK EFFECT MAINT. MSG. 36-12021 ENG 2 FAMV IS NOT IN COMMANDED POSITION. ACCOMP B737-9 IFIM TASK 31-00-00-810-801. ACCOMP. IFIM TASK 36-12-00-810-802. WITH INITIAL EVALUATION ACCOMP. PNEUMATIC ENG ON SYS TEST ON #2 ENG REF B737-9 AMM 36-00-00-730-801. TEST PASSED. FAULT NO LONGER APPEARS ON STATUS PG. FAULT NO LONGER ACTIVE ON INBD FLT DECK EFFECT OR EXISTING FAULTS. MAINT. LIGHT EXTINGUISHED. NO HISTORY 30 DAYS O.K. FOR SVC.
Part: MODULATING VALVE — WARNING LIGHT (#1 ENGINE) · airframe 1,944 hrs · 576 cycles
'MAINT' AMBER LIGHT ON OVERHEAD PANEL ILLUMINATED AFTER LANDING. GROUNDED - YES. REMOVED AND REPLACED FAN AIR MODULATING VALVE (L/H) REF. B737-9 AMM 36-12-03/401.
Part: PROCESSOR — FAULTY (EE, E1) · airframe 1,936 hrs · 574 cycles
WX RADAR IS WEAK, STORM THAT WOULD NORMALLY DISPLAY AT 150 NM DONT DISPLAY UNTIL 60 NM, STORMS TOWERING TO 50,000' WITH CONFIRMED LIGHTNING DISPLAYS GREEN AND YELLOW INSTEAD OF RED. GROUNDED - YES. REPLACED NEW WXR PROCESSOR & INSTALLATION TEST NORMAL B737-9 AMM 34-41-42/401.
Part: FCU — FAULTY (E/E RACK E1) · airframe 1,609 hrs · 474 cycles
REF ASA TSR712591 TECH SERVICES REQUEST FOLLOW UP DUE TO HISTORY OF AFCS A/T DC-1 CIRCUIT BREAKER POPPING DURING ENGAGEMENT OF AUTO THROTTLE. FCC-A REPLACEMENT REQUIRED. GROUNDED - YES. REPLACED FCC-A REF B737-9 AMM 22-11-33. LRU REPLACEMENT TEST BITE GROUP #35 GOOD. LAND VERIFY TEST GOOD. LOADED SOFTWARE 2274-COL-AC2-26 TO FCC-A REF AMM 22-11-33-470-802 VERIFIED FCC-A AND FCC-B OPS MATCH.
Part: FMC — INTERMITTENT (UNKNOWN) · airframe 1,553 hrs · 457 cycles
ON THE GROUND, HAD FMC DISAGREE IN SCRATCH PAD AND NAV DISPLAYS. GROUNDED - YES. COMPLETED GROUND PROCEDURE FROM QRH, MESSAGE CLEARED.
Part: ACTUATOR — FAULTY (R RAM AIR INLET) · airframe 1,530 hrs · 451 cycles
AFTER LANDING MAINT LIGHT ON OVERHEAD PANEL ILLUMINATED. GROUNDED - YES. STATUS PAGE SHOWING MSG: PACK RAM AIR SYSTEM R, MAINT MESSAGE 21-55001. B737-9 IFIM TASK 21-51-00-810-802, FOUND GOOD VOLTAGE AT RIGHT FORWARD RAM AIR ACTUATOR CONNECTOR D14394. BAD RIGHT FORWARD RAM ACTUATOR M2797. REMOVED AND REPLACED RIGHT FWD RAM ACTUATOR PER B737-9 AMM 21-51-21. ACCOMPLISHED IBIT TASK 21-00-00-730-801, PASSED.
Part: CIRCUIT BREAKER — POPPED (UNKNOWN) · airframe 1,444 hrs · 426 cycles
ON TAXI AUTO THROTTLE WOULD NOT ENGAGE & TRIPPED A/T CB. GROUNDED - YES. PERFORMED C/B RESET OF C/B DC1 IAW B737-9 AMM 20-60-01. NO DEFECTS NOTED. PERFORMED A/T OP'S TEST IAW AMM 22-31-00-710-801. OP'S CK'D NORMAL.
Part: CHIP DETECTOR — OUT OF LIMITS (#2 ENGINE) · airframe 1,185 hrs · 338 cycles
CFM IS REPORTING #2 ENGINE ODMS CHIP COUNT INCREASE OVER CONSECUTIVE FLIGHTS. GROUNDED - YES. PERFORMED TSR STEPS 1-6 ON #2 ENGE FOUND NO DEBRIS IN SCAVENGE SCREENS OR THE ODMS. FOUND DEBRIS ON THE STARTER MAGNETIC CHIP DETECTOR OUT OF LIMTS. REPLACED OIL IN STARTER REF B737-9 AMM 80-11-01 AND DRY MOTORED THE ENGINE FOR 2 CYCLES REF AMM 71-00-00. RECHECKED THE STARTER CHIP DETECTOR FOUND MORE DEBRIS STILL OUT OF LIMITS. REMOVED AND REPLACED #2 ENGINE STARTER REF AMM 80-11-01. OPS CHECK AND LEAK CHECKS GOOD.
Part: FREQUENCY GEN — FAULT MESSAGE · airframe 1,122 hrs · 322 cycles
BOTH HF 2 FREQUENCY INDICATORS DISPLAY FAIL. GROUNDED - YES. VERIIFIED "FAIL" ON BOTH HF #2 WINDOW, REPLACED NEW HF #2 TRANSCEIVER & INSTALLATION TEST PASSED B737-9 AMM 23-11-21/401, BOTH HF#1 & HF#2 FAILED ON SYSTEM TEST AMM 23-11-00-730-801 3F(1)(C)(4)(A) UNABLE TO TRANSMIT OR RECEIVE FROM SFO-ARINC RADIO STATION, TRANSMITTING & RECEIVING FROM AIRCRAFT TO AIRCAFT AT SEA ARE FINE, BOTH HF#1 & HF#2 INOP, REPLACED MEL 23-11-01B TO NEW MEL 23-11-01A. REF L/P 60466539, FLIGHT CREW PERFORMED SUCCESSFUL HF1 & HF2 RADIO CHECK WITH SFO RADIO STATION, CLEARS MEL 23-11-01A.
Part: CIRCUIT BREAKER — POPPED (UNKNOWN) · airframe 1,060 hrs · 303 cycles
AUTO THROTTLE DC#1 CB POPPED. GROUNDED - YES. PERFORMED C/B RESET REF B737-9 AMM 20-60-01, PERFORMED A/T OPS TEST REF AMM 22-31-00 NO DEFECTS NOTED.
Part: ECU — INOPERATIVE (AFT CARGO COMPAR) · airframe 666 hrs · 199 cycles
APU FAULT LIGHT ILLUMINATES ON ATTEMPTED APU START. GROUNDED - YES. ACCOMPLISHED APU BITE TEST, FOUND ACTIVE MAINTENANCE MESSAGE 49-89002 " ONBOARD MAINTENANCE FUNCTION HAS NO INPUT FROM APU ECU" PER B737-9 IFIM 49-00-00-810-817, REMOVED AND REPLACED APU ELECTRONIC CONTROL UNIT REF B737-9 AMM 49-61-12/401. START APU AND PERFORMED APU BITE TEST, NO ACTIVE FAULT NOTED.
2021
Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 10 hrs · 8 cycles
SPEED TRIM FAIL ILLUMINATES ON MASTER CAUTION RECALL. EXTINGUISHES W/RESET. GROUNDED - YES. NO CURRENT FAULTS OR FAULT HISTORY. SYS OPS NORMAL REF B737-9 AMM 22-11-00.