# Service difficulty reports: N936AK

A list on [N936AK](https://openairdocs.org/aircraft/N936AK.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

- [SDR ASAA2026102300001](https://openairdocs.org/sdr/ASAA2026102300001.md): Battery Pack · faulty · Oct 20, 2026 · N936AK · Boeing 7379 · Emergency Lighting
  > GEN BY NRC: REMOVE EMERGENCY LIGHT POWER SUPPLY (M03378), TO FOM (STRUCTURE REPAIR). APROX. STA 725 RIGHT SIDE. REMOVED AND REINSTALLED EMERGENCY LIGHT POWER SUPPLY CM03378 AND REMOVED AND REPLACED POWER SUPPLY BATTERY PACK M1676 AT ROW 7DEF AND REMOVED AND RE
- [SDR ASAA2025072259648](https://openairdocs.org/sdr/ASAA2025072259648.md): Cover · missing · Jul 22, 2025 · N936AK · Boeing 7379 · Emergency Lighting
  > FA REPORTS 16DEF ROW IS MISSING EXIT ROW SMALL PLASTIC COVER. GROUNDED - YES. REPLACED RT FWD EMERGENCY EXIT LIGHT COVER. OPS CK NRML. REF 33-51-01-960-801.
- [SDR ASAA2025060758526](https://openairdocs.org/sdr/ASAA2025060758526.md): Placard · missing · Jun 7, 2025 · N936AK · Boeing 7379 · Placards and Markings
  > FA REPORTS SEAT 17A NO-SMOKING PLACARD IS MISSING. GROUNDED - YES. FOUND TO BE 17A EMERGENCY EXIT SIGN ABOVE THE CABIN FLOOR. REPLACED EMERGENCY EXIT COVER AS REQUIRED OK FOR SVC.
- [SDR ASAA2025052358224](https://openairdocs.org/sdr/ASAA2025052358224.md): Lens · detached · May 23, 2025 · N936AK · Boeing 7379 · Emergency Lighting
  > FLOORBOARD EMERGENCY EXIT LIGHT COVER FELL OFF AT ROW 16 D-F. GROUNDED - YES. REMOVED AND REPLACED EXIT FLOOR LIGHTING LENS AT 16 DEF REF AMM 33-51-01-960-801.
- [SDR ASAA2025051366261](https://openairdocs.org/sdr/ASAA2025051366261.md): Skin Panel · dented · May 13, 2025 · N936AK · Boeing 7379 · Fuselage Main, Plate/Skin
  > FOUND DENT AT APPROX STA 787 + 10.0" NEAR STR 23 APPROX 52" FWD OF LAV SVC DOOR CUTOUT. GROUNDED - YES. REINFORCING MAJOR REPAIR, CATEGORY "B", HAS BEEN ACCOMPLISHED IN ACCORDANCE WITH MIG-70 EA M9-53EA-30310. SEAMC DAN NOTIFIED. SRXR430X.
- [SDR ASAA2025010855167](https://openairdocs.org/sdr/ASAA2025010855167.md): Light · malfunctioned · Jan 8, 2025 · N936AK · Boeing 7379 · Emergency Lighting
  > CABIN WRITE UP- FWD GALLEY EMER LIGHT STRIP INTERMITTENT. GROUNDED - YES. REF AMM 33-51-00 AND 33-51-01. FA NOTES STATE LIGHT INTERMITTENTLY FLICKERED DURING FLIGHT BUT DID NOT SPECIFY WHICH LIGHT. REMOVED ALL FWD GALLEY EMERGENCY LIGHTS AND MANIPULATED HARNES
- [SDR ASAA2023123047069](https://openairdocs.org/sdr/ASAA2023123047069.md): Bulb · inoperative · Dec 30, 2023 · N936AK · Boeing 7379 · Emergency Lighting
  > PER TABLE CARD 33-010-00 EMERGENCY LIGHTS FOUND L2 SLIDE LIGHT INOP. GROUNDED - YES. RE-LAMPED L2 EMERGENCY SLIDE LIGHT OPS TEST GOOD REF AMM 33-51-04-960-801.
- [SDR ASAA2023102145774](https://openairdocs.org/sdr/ASAA2023102145774.md): Unknown · unknown · Oct 21, 2023 · N936AK · Boeing 7379 · Airfoil Anti/De-ice System
  > WHEN ACTIVATING WING HEAT THE "L VALVE" AMBER LIGHT ILLUMINATED. GROUNDED - YES. ACCOMP WING THERMAL ANTI-ICE VALVE OPS CHECK ON BOTH 3 TIMES ALL PASS REF B737-9 AMM 30-11-11-860-034.
- [SDR ASAA2023101345625](https://openairdocs.org/sdr/ASAA2023101345625.md): Unknown · unknown · Oct 13, 2023 · N936AK · Boeing 7379 · Cabin Cooling System
  > WHILE PERFORMING TASKCARD 31-005-00 FOUND FAULT CODE PACK CONTROL CHANNEL R. GROUNDED - YES. FOUND MAINTENANCE MESSAGE 21-55341. TROUBLESHOT PER IFIM 21-51-00-810-835. PERFORM AIR CONDITIONING IBIT, TEST PASSED MESSAGE CLEARED. DETERMINED TO BE INTERMITTENT FA
- [SDR ASAA2023092545307](https://openairdocs.org/sdr/ASAA2023092545307.md): Unknown · unknown · Sep 25, 2023 · N936AK · Boeing 7379 · Central Warning
  > SPEED TRIM FAIL LIGHT ON MASTER CAUTION RECALL. GROUNDED - YES. PERFORMED B737-9 AMM TASK 22-11-00-740-815 OPS CK GOOD NOT DEFECTS NOTED A/C OK FOR SVC.
- [SDR ASAA2023092445241](https://openairdocs.org/sdr/ASAA2023092445241.md): Igniter · damaged · Sep 24, 2023 · N936AK · Boeing 7379 · Spark Plug/Igniter
  > STARTING ENG 2, NO IGN ON "IGN L". GROUNDED - YES. (RESOLVED ON W/O: 1967156 TASKCARD: N/R-00001) FOUND FAULT CODE 74-42493 IN HISTORY WITH NO CORRELATED FAULTS. TROUBLESHOT PER IFIM G74-00-00-810-823 FAUL WAS NOT ACTIVE OR LATCHED INSPECTED LEFT IGNITER REF
- [SDR ASAA2023092045232](https://openairdocs.org/sdr/ASAA2023092045232.md): Unknown · unknown · Sep 20, 2023 · N936AK · Boeing 7379 · Ignition System
  > WHILE STARTING #2, NO LIGHT OFF AFTER 3 ATTEMPTS IGN L. GROUNDED - YES. (RESOLVED ON W/O: 1970426 TASKCARD: N/R-00001) FOUND FAULT CODE 74-42493 IN HISTORY WITH NO CORRELATED FAULTS. TROUBLE SHOT PER IFIM974-00-00-810-823 FAULT WAS NOT ACTIVE OR LATCHED. PERF
- [SDR ASAA2023091345108](https://openairdocs.org/sdr/ASAA2023091345108.md): Static Inverter · faulty · Sep 13, 2023 · N936AK · Boeing 7379 · Pitot/Static System
  > WHILE ACCOMPLISHING TC 24-100-00, STANDBY POWER WOULD NOT TURN OFF IN THE OFF POSITION. "STANDBY POWER OFF" LIGHT WILL NOT ILLUMINATE AND DOES NOT DROP OFF. GROUNDED - YES. REMOVED AND REPLACED STANDBY POWER CONTROL UNIT. NO HELP. REF AMM 24-34-11/401. APPLIED
- [SDR ASAA2023091245115](https://openairdocs.org/sdr/ASAA2023091245115.md): Power Unit · malfunctioned · Sep 12, 2023 · N936AK · Boeing 7379 · APU Start/Ignition System
  > UPON ARRIVAL IN SEA WE ATTEMPTED TO START THE APU. SHORTLY THERE AFTER THE FAULT LIGHT ILLUMINATED. WE TURNED THE APU START SWITCH OFF AND PER THE QRH WAITED FOR THE FAULT LIGHT TO EXTINGUISH. AFTER THE FAULT LIGHT TURNED OFF WE REATTEMPTED TO START THE APU. O
- [SDR ASAA2023081444595](https://openairdocs.org/sdr/ASAA2023081444595.md): Unknown · unknown · Aug 14, 2023 · N936AK · Boeing 7379 · Flight Management Computing Hardware System
  > FMC DISAGREE MESSAGE DIDPLAYED, IT DISAPPEARED AFTER SWITCHING FROM GPU TO APU POWER. GROUNDED - YES. PERFORMED FMC DISAGREE FAULT ISOLATION PER IFIM 34-61-00-810-918, OPS CHECK GOOD, FMC DISAGREE MESSAGE EXTINGUISHED.
- [SDR ASAA2023072244151](https://openairdocs.org/sdr/ASAA2023072244151.md): Unknown · unknown · Jul 22, 2023 · N936AK · Boeing 7379 · Cabin Cooling System
  > FOUND LATCH FAULT PACK CONTROL CHANNEL R. GROUNDED - YES. FOUND FAULT CODE 21-55341 PERFORMED IFIM TASK 21-51-00 SEC B INITIAL EVALUATION TO STEP 3. THIS CLEARED LATCH MESSAGE PACK CONTROL CHANNEL R. NO FURTHER ACTIONS NEEDED.
- [SDR ASAA2023071444044](https://openairdocs.org/sdr/ASAA2023071444044.md): Unknown · unknown · Jul 14, 2023 · N936AK · Boeing 7379 · Flight Management Computing Hardware System
  > EXPERIENCED DUAL FMC FAILURE @ FL340 1 MIN THEN WENT BACK TO NORMAL. GROUNDED - YES. PERFORMED FMC RESET PER B737-9 IFIM 34-61-00 OPS CHECK NORMAL.
- [SDR ASAA2023070343863](https://openairdocs.org/sdr/ASAA2023070343863.md): Unknown · unknown · Jul 3, 2023 · N936AK · Boeing 7379 · Autopilot System
  > MCP PANEL IS BLANK. GROUNDED - YES. RE-POWERED A/C OPS TEST MODE CNTRL PANEL OPS NORMAL REF B737-9 IFIM 22-10-00, GRND VERIFICATION SUCCESSFUL.
- [SDR ASAA2023051843295](https://openairdocs.org/sdr/ASAA2023051843295.md): Unknown · unknown · May 18, 2023 · N936AK · Boeing 7379 · Flight Management Computing Hardware System
  > FO'S MFD NOT DISPLAYING ROUT UNTIL CYCLING FMC SWITH TO BOTH ON L. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM 34-61-00 L & R FMC OPS CHECK NORMAL.
- [SDR ASAA2023050643151](https://openairdocs.org/sdr/ASAA2023050643151.md): Unknown · unknown · May 6, 2023 · N936AK · Boeing 7379 · Pneumatic System
  > 'MAINT' LT ON. STATUS SHOWS- 'BLEED FAMV R'. GROUNDED - YES. 'BLEED FAMV R' MAINT. MSG 36-12021, PERFORMED B737-9 IFIM TASK 36-12-00-810-802 PNEUMATIC ENGINE ON- TEST PASSED NO STATUS / MAINT FAULTS.
- [SDR ASAA2023050643149](https://openairdocs.org/sdr/ASAA2023050643149.md): Unknown · unknown · May 6, 2023 · N936AK · Boeing 7379 · Pneumatic System
  > AFTER LANDING, UPON EXITING RWY, "MAINT" LIGHT ILLUMINATED. GROUNDED - YES. INTERROGATED FAULTS, FOUND THE BLEED FAMV R AND MAINTENANCE MESSAGE 36-12-021 PER B737-9 AMM 36-12-00-810-802. COMPLIED WITH PNEUMATIC ENGINE ON TEST PER B737-9 AMM 36-00-00-730-801. M
- [SDR ASAA2023041942931](https://openairdocs.org/sdr/ASAA2023041942931.md): Unknown · unknown · Apr 19, 2023 · N936AK · Boeing 7379 · Pneumatic System
  > OVERHEAD MAINT LIGHT ILLUMINATED. GROUNDED - YES. FOUND MX MSG 36-11011 ON #2 ENG HPSOV TORQUE MOTOR SIGNAL IS OUT OF RANGE, PERFORMED SYSTEM TEST ON IASC RIGHT OPS CHECK GOOD, PERFORMED BLEED HPSOV CTRL R OPS CHECK GOOD, LRU REPLACEMENT PASS, REF B737-9 IFIM
- [SDR ASAA2023041842922](https://openairdocs.org/sdr/ASAA2023041842922.md): Valve · failed · Apr 18, 2023 · N936AK · Boeing 7379 · Pneumatic Distribution System
  > UPON PERFORMING ASA T/C 72-ASA-03. FOUND DEFECTIVE HELICOIL ON LOCK-OUT OF #2 ENG HPSOV. GROUNDED - YES. PERFORMED ALT-LOCKOUT PROCEDURE IAW B737-9 CHPT 5, 05-07-01 TABLE 3 ITEM #7. REMOVED HPSOV IAW B737-9 AMM 36-11-07-000-801.INSTALLED HPSOV ON #2 ENG AND A
- [SDR ASAA2023041142824](https://openairdocs.org/sdr/ASAA2023041142824.md): Probe · failed · Apr 11, 2023 · N936AK · Boeing 7379 · Pitot/Static Anti-Ice System
  > WHILE IN FLIGHT TEMP PROBE ANNUNCIATOR LIGHT AND MASTER CAUTION ILLUMINATED. COMPLETED PROBE HEAT QRH PROCEDURE. GROUNDED - YES. REMOVED AND REPLACED TOTAL AIR TEMPERATURE PROBE PER B737-9 AMM 34-21-06.
- [SDR ASAA2023032542605](https://openairdocs.org/sdr/ASAA2023032542605.md): Exciter · failed · Mar 25, 2023 · N936AK · Boeing 7379 · Ignition Power Supply
  > #2 ENGINE NEGATIVE IGNITION ON TWO STARTS WITH LEFT IGNITER SELECTED. GROUNDED - YES. LEFT IGNITOR PLUG REPLACED REF B737-9 AMM 74-21-02. LEFT IGNITION EXCITER REPLACED, REF AMM 74-11-01. PERFORMED TEST OF IGNITOR SYSTEM - SAME PASS-REF AMM 71-00-00. ENG RUN O
- [SDR ASAA2023032442553](https://openairdocs.org/sdr/ASAA2023032442553.md): Sensor · faulty · Mar 24, 2023 · N936AK · Boeing 7379 · Cabin Temperature Control System
  > WHILE ACCOMPLISHING T/C 31-005-00 SMTPACK CONTROL CHANNEL L: MX MSG 21-55130 LEFT AIR CONDITIONING PACK INLET PRESSURE SENSOR IS OUT OF RANGE "MAINT" LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM 21-51-00-810-824 LEFT PACK INLET PRESSURE SENSOR R
- [SDR ASAA2023030742233](https://openairdocs.org/sdr/ASAA2023030742233.md): Electronic Unit · failed · Mar 7, 2023 · N936AK · Boeing 7379 · APU Controls
  > FOLLOWUP TO HISTORY OF APU SHUTDOWN WITH ECU FAILURE MESSAGE. GROUNDED - YES. REMOVED AND REPLACED APU ELEC. CONTROL UNIT REF B737-9 AMM 49-61-12-000-801 AND 49-61-12-400-801.
- [SDR ASAA2023030542255](https://openairdocs.org/sdr/ASAA2023030542255.md): Unknown · unknown · Mar 5, 2023 · N936AK · Boeing 7379 · APU Controls
  > DURING APU START AT GATE, AUTO-SHUTDOWN AND APU FAULT LIGHT ILLUMINATED. EXTINGUISHED AFTER 4 MINUTES. GROUNDED - YES. ATTEMPTED 2ND START- START SUCCESSFUL-PERFORMED APU BITE PROCEDURE IAW B737-9 AMM 49-61-00. NO EXISTING FAULTS. FAULT HISTORY CHECK- 49-61144
- [SDR ASAA2023020741911](https://openairdocs.org/sdr/ASAA2023020741911.md): Sensor · failed · Feb 7, 2023 · N936AK · Boeing 7379 · Power Indicating System
  > DURING ASA TSR713760 FOUND ENG 1 FAULT 73-44632 FAN SPEED N1 SENSOR LOW TOOTH SIGNAL IS INVALID DETECTED BY ENG 1 EEC CH. B UNDER PRESENT LEG FAULTS/ FAULT HISTORY LEGS 0,3,4 AND 16. GROUNDED - YES. REMOVED AND REPLACED #1 ENG N1 SENSOR REF B737-9 AMM 77-12-01
- [SDR ASAA2023010141361](https://openairdocs.org/sdr/ASAA2023010141361.md): Heater · inoperative · Jan 1, 2023 · N936AK · Boeing 7379 · Pitot/Static Anti-Ice System
  > AFTER LANDING AUX PITOT PROBE LIGHT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED AUXILIARY PITOT PROBE PER B737-9 AMM 34-11-01. LEAK TEST PER AMM 34-11-08-790-808 GOOD.
- [SDR ASAA2022121441132](https://openairdocs.org/sdr/ASAA2022121441132.md): Drain Mast · leaking · Dec 14, 2022 · N936AK · Boeing 7379 · Turbine Engine Oil System
  > OIL LEAKING FROM BOTH ENGINES. GROUNDED - YES. VERIFIED OIL CAPS SECURED. PERFORMED ENGINE VENTS AND DRAIN INSPECTION PER B737-9 AMM 71-71-00-200-801-G00. FOUND OIL WAS COMING FROM C-SUMP TUBE IN CORE DRAIN MAST BOTH ENGINES. NO LEAK AT THIS TIME. PERFORMED EN
- [SDR ASAA2022120140999](https://openairdocs.org/sdr/ASAA2022120140999.md): Pressure Sensor · out of tolerance · Dec 1, 2022 · N936AK · Boeing 7379 · Cabin Cooling System
  > WHILE ACCOMPLISHING ASA T/C 31-005-00. FOUND SMT PACK CONTROL CHANNEL L MAINT MESSAGE 21-55230 FAULT CODE 21545141. LEFT AIR CONDITIONING INLET PRESSURE SENSOR IS OUT OF RANGE. GROUNDED - YES. REMOVED & REPLACED L/H PRESSURE SENSOR REF B737-9 AMM 47-43-04 OPS
- [SDR ASAA2022111740819](https://openairdocs.org/sdr/ASAA2022111740819.md): Lamp · inoperative · Nov 17, 2022 · N936AK · Boeing 7379 · Emergency Lighting
  > R2 EXT EMERGENCY LIGHT INOP. GROUNDED - YES. REMOVED AND REPLACED R2 EXT EMERGENCY LIGHT, REF AMM 33-51-04. OPS CHECKS GOOD.
- [SDR ASAA2022110740683](https://openairdocs.org/sdr/ASAA2022110740683.md): Circuit Breaker · faulted · Nov 7, 2022 · N936AK · Boeing 7379 · Electrical Power System Wiring
  > AC TRANSER BUS 1 AND 2 WILL NOT POWER ON. (IE NO HYDRAULICS (ELECTRIC) 1 AND 2 NORMAL EQUIP COOLING INOP) OTHER INDICATIONS AS WELL. GROUNDED - YES. FOUND C/B'S FOR EQUIP COOLING FAN BOTH EMDP OPENED ON PANEL P91 AND P92. RESET C/B"S REFERENCE B737-9 AMM 20-60
- [SDR ASAA2022100740202](https://openairdocs.org/sdr/ASAA2022100740202.md): Pitot Tube · faulty · Oct 7, 2022 · N936AK · Boeing 7379 · Pitot/Static Anti-Ice System
  > AFTER LANDING EXITING THE RUNWAY - MASTER CAUTION AND F/O PITOT LIGHT ON. GROUNDED - YES. REPLACED F/O'S PITOT PROBE, ALL OPS NML. ALL TEST PASS. REF B737-9 AMM 34-11-01.
- [SDR ASAA2022100440201](https://openairdocs.org/sdr/ASAA2022100440201.md): Pitot Tube · faulty · Oct 4, 2022 · N936AK · Boeing 7379 · Pitot/Static Anti-Ice System
  > "L ELEV PITOT" CAUTION LIGHT ILLUMINATED AFTER START UP. GROUNDED - YES. REMOVED AND REPLACED L ELEVATOR PITOT PROBE B737-9 AMM 27-31-94 (ASA L/P 60403052), L ELEV PITOT CAUTION LIGHT EXTINGUISHED.
- [SDR ASAA2022092240024](https://openairdocs.org/sdr/ASAA2022092240024.md): Fmc · discharged · Sep 22, 2022 · N936AK · Boeing 7379 · Flight Management Computing Hardware System
  > DURING PRE FLIGHT FMC DISCHARGE ON BOTH ND. GROUNDED - YES. OPERATION TEST ACCOMPLISHED PER B737-9 AMM 22-96-00-710-001-AOPS TEST GOOD. ASA QRH-FMC OPS GOOD.
- [SDR ASAA2022090439783](https://openairdocs.org/sdr/ASAA2022090439783.md): Unknown · unknown · Sep 4, 2022 · N936AK · Boeing 737 · Pitot/Static Anti-Ice System
  > L ELEV PITOT LIGHT ILLUMINATED DURING CRUISE. GROUNDED - YES. INSPECTED AND FOUND CB OPEN C4 P18-3. PERFORMED CB WIRING INSPECTION REF B737-9 AMM 20-60-01. NO FAULTS FOUND. CLOSED CB C4. PERFORMED PITOT PROBES OPS TEST REF AMM 30-31-00. NO FAULTS FOUND.
- [SDR ASAA2022082739710](https://openairdocs.org/sdr/ASAA2022082739710.md): Unknown · faulty · Aug 27, 2022 · N936AK · Boeing 737 · Alternator-Generator Drive
  > ENG #2 DRIVE LIGHT NOT ILLUMINATED AT GATE WITH ENG NOT RUNNING. DOES PRESS-TO-TEST. GROUNDED - YES. REMOVED AND REPLACED #2 IDG REF B737-9 AMM 24-11-11. OPS CHECK AND LEAK CHECK GOOD. LAMPS REINSTALLED. DISCONNECT SWITCH GUARDED AND SAFETIED.
- [SDR ASAA2022081739536](https://openairdocs.org/sdr/ASAA2022081739536.md): Sign · detached · Aug 17, 2022 · N936AK · Boeing 7379 · Emergency Lighting
  > EXIT SIGN CAME OFF WING EMERG. EXIT DOOR 16DEF ROW. GROUNDED - YES. RESCURED EMERG EXIT SIGN AT ROW 16DEF PER B737-9 AMM 33-51-04.
- [SDR ASAA2022072239176](https://openairdocs.org/sdr/ASAA2022072239176.md): Overheat · warning light · Jul 22, 2022 · N936AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > AFTER LANDING L2 WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. RESET SYSTEM, TESTED PER B737-9 AMM 30-41-00-710-801, ETOPS GROUND FUNCTIONAL CHECK GOOD PER AMM 30-41-00-710-801.
- [SDR ASAA2022061538674](https://openairdocs.org/sdr/ASAA2022061538674.md): Sensor · out of limits · Jun 15, 2022 · N936AK · Boeing 7379 · Pneumatic Distribution System
  > #1 ENG ANTI ICE AMBER LIGHT ILLUMIATED. GROUNDED - YES. FOUND MAINTENCE MESSAGE 36-21010. #1 ENG INTERMEDIATE DUCT PRESSURE SENSOR SIGNAL IS OUT OF RANGE. REMOVED AND REPLACED THE INTERMEDIATE MANIFOLD (PI) SENSOR. OPS CHECK AND LEAK CHECK GOOD. GROUND VERIFIC

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE n_number = 'N936AK' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N936AK/reports

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