# Service difficulty reports: N946AK

A list on [N946AK](https://openairdocs.org/aircraft/N946AK.md).

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

- [SDR ASAA2023101645709](https://openairdocs.org/sdr/ASAA2023101645709.md): Unknown · unknown · Oct 16, 2023 · N946AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > R2 WINDOW LIGHT ILLUMINATED SHORTLY AFTER TAKEOFF. RAN QRH, R2 OVERHEATLIGHT CAME BACK ON A SECOND TIME AFTER ABOUT 10 MINUTES. LFT R2 WINDOW HEATSWITCH OFF REMAINDER OF THE FLIGHT. GROUNDED - YES. PERFORMED WINDOW HEAT SYSTEM OPERATIONAL TEST IAW AMM 30-41-00
- [SDR ASAA2023101445665](https://openairdocs.org/sdr/ASAA2023101445665.md): Unknown · unknown · Oct 14, 2023 · N946AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > R2 WINDOW OVERHEAT. GROUNDED - YES. RESOLVED USING QRH PROCEDURE.
- [SDR ASAA2023101045537](https://openairdocs.org/sdr/ASAA2023101045537.md): Unknown · unknown · Oct 10, 2023 · N946AK · Boeing 7379 · HF Communications System
  > "NO COMM" ON THE DATA LINK. CPDLC NON-FUNCTIONAL. GROUNDED - YES. (RESOLVED ON W/O: 1969958 TASKCARD: N/R-00002) ACCOMPLISHED MM 23-15-00 FOR SATCOM SYSTEM, OPS NORMAL. NO FAULTS GROUND VERIFICATION SUCCESSFUL. PLACARDS REMOVED. NO SPECIAL PROCEDURES. THIS CL
- [SDR ASAA2023100645478](https://openairdocs.org/sdr/ASAA2023100645478.md): Unknown · unknown · Oct 6, 2023 · N946AK · Boeing 7379 · Fuel Controlling System
  > WHILE ACCOMPLISHING T/C 05-020-01 DISCOVERED ENG 2 EEC C2 ON SMT MESSAGE. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM G73-20-810-804 (ALTERNATE MODE AND DPC-2 SIGNALS DO NOT AGREE). NO DEFECTS NOTED. DETERMINED TO BE INTERMITTENT FAULT.
- [SDR ASAA2023100645477](https://openairdocs.org/sdr/ASAA2023100645477.md): Unknown · unknown · Oct 6, 2023 · N946AK · Boeing 7379 · Fuel Controlling System
  > WHILE ACCOMPLISHING T/C 05-020-01 DISCOVERED ENG 1 EEC C2 ON SMT. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM G73-20-00-810-803 (ALTERNATE MODE AND DPC-2 SIGNALS DO NOT AGREE). NO DEFECTS NOTED. DETERMINED TO BE INTERMITTENT FAULT.
- [SDR ASAA2023091345113](https://openairdocs.org/sdr/ASAA2023091345113.md): Display · cracked · Sep 13, 2023 · N946AK · Boeing 7379 · Flight Management Computing Hardware System
  > VERTICAL CRACK IN FMC SCREEN, CA SIDE. GROUNDED - YES. VERIFIED FAULT, OPEN C/B & INST. MIG51A. REPLACED CAPT. FMC CDU WITH SERVICEABLE ONE. CLOSED C/B & REMOVED MIG51A. ACCOMP. CDU SOFTWARE CONF. CHECK VERIFIED BOTH CDU'S HAVE SAME. ACCOMP. INST. TEST, TEST P
- [SDR ASAA2023091245114](https://openairdocs.org/sdr/ASAA2023091245114.md): Unknown · unknown · Sep 12, 2023 · N946AK · Boeing 7379 · APU Start/Ignition System
  > APU FAULT, WOULD NOT START. GROUNDED - YES. FOLLOWE IFIM PRCEDURE 49-40-00-810-805. APU ATARTED SUCCESSFULLY. SAULT WAS NOT ACTIVE AND PWER PARAGRAPH (2) STEP (B) REF LP 60631063 FOR 49-99A MEL.
- [SDR ASAA2023081444611](https://openairdocs.org/sdr/ASAA2023081444611.md): Unknown · unknown · Aug 14, 2023 · N946AK · Boeing 7379 · Ignition Harness (Distribution)
  > "MAINT LIGHT" ILLUMINATED ON TAXI TO GATE. NO OTHER INDICATIONS. GROUNDED - YES. C/W FAULT INTERROGATION FOR MAINT MSG, FOUND LATCHED FAULT 74-21052 AND ALSO FOUND EEC SWITCHES IN TEST POSITION.C/W IFIM TASK G74-20-00-810-801. EEC CHANNEL A&B IGNITION SYSTEM T
- [SDR ASAA2023072444201](https://openairdocs.org/sdr/ASAA2023072444201.md): Idg · faulty · Jul 24, 2023 · N946AK · Boeing 7379 · AC Generator-Alternator
  > #2 ENG 'DRIVE' LIGHT NOT ILLUMINATED WITH #2 ENG SHUT DOWN. GROUNDED - YES. (RESOLVED ON W/O: 1963130 TASKCARD: N/R-00002) REPLACED #2 ENGINE IDG. REF AMM 24-11-11. GROUND VERIFICATION SUCCESFUL. CLEAR MEL 24-11-02. REF LP 60716303 FOR IDG OIL AND FILTER CHAN
- [SDR ASAA2023072144163](https://openairdocs.org/sdr/ASAA2023072144163.md): Unknown · unknown · Jul 21, 2023 · N946AK · Boeing 7379 · Alternator-Generator Drive
  > ENG 2 DRIVE LIGHT NOT ILLUMINATED. GROUNDED - YES. PERFORMED #2 IDG OPS CHECK IAW AMM 24-11-00 OPS CK GOOD SEAMC DAVE NOTIFIED. NON ASA EMP KYLE WALEN A&P N9VR0841.
- [SDR ASAA2023072044171](https://openairdocs.org/sdr/ASAA2023072044171.md): Unknown · unknown · Jul 20, 2023 · N946AK · Boeing 7379 · Pneumatic Distribution System
  > WHILE PERFORMING TASK CARD 31-005-00 SCHEDULED MAINT TASK DISPLAY SYSTEM FOUND SMT MESSAGE BLEED CTRL CARD R. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023071744085](https://openairdocs.org/sdr/ASAA2023071744085.md): Unknown · unknown · Jul 17, 2023 · N946AK · Boeing 7379 · Engine Oil Distribution (Airframe Furnished)
  > TECH SERVICES FOLLOW UP ON URGENT CNR 20230717011 FOR #1 ENG (60A677) CUMULATIVE ODMS CHIP COUNT INCREASE - LOW THRESHOLD **WITHIN NEXT 5 CYCLES**#PRI1/ETOPS. GROUNDED - YES. (RESOLVED ON W/O: 1962223 TASKCARD: N/R-00001) ACCOMPLISHED STEP 1 OF TSR, INSPECTI
- [SDR ASAA2023071644083](https://openairdocs.org/sdr/ASAA2023071644083.md): Igniter · failed · Jul 16, 2023 · N946AK · Boeing 7379 · Ignition Harness (Distribution)
  > #2 ENGINE NO LIGHTOFF WITHIN 15 SECONDS WITH IGNITOR SWITCHED TO IGNL STARTS FINE WITH IGNR. GROUNDED - YES. (RESOLVED ON W/O: 1962223 TASKCARD: N/R-00002) REMOVED AND REPLACED L/H IGNITER ON #2 ENG REF AMM 74-21-02. OPS CHECK GOOD. ENG STARTS NORMAL WITH IGN
- [SDR ASAA2023071043961](https://openairdocs.org/sdr/ASAA2023071043961.md): Unknown · unknown · Jul 10, 2023 · N946AK · Boeing 7379 · Flight Management Computing Hardware System
  > "FMC DISAGREE" ALERT DISPLAYED ON ND. GROUNDED - YES. PERFORMED IFIM 34-61-00-810-918, CYCLED FMC COMPUTER 1 (P18-2, A6) AND FMC COMPUTER 2 (P6-1, D16). FAULT CLEARED. NO HISTORY 30 DAYS.
- [SDR ASAA2023062943839](https://openairdocs.org/sdr/ASAA2023062943839.md): Unknown · unknown · Jun 29, 2023 · N946AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > LEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED DURING CRZ. FOLLOWED QRH PROCEDURE & LIGHT EXTINGUISHED, THEN REILLUMINATED. GROUNDED - YES. OPS CHECK PERFORMED IAW B737-9 AMM 30-41-00-710-801 AND AMM 30-41-11-710-801 FOUND GOOD AT THIS TIME. LEFT SIDE SLIDE WINDO
- [SDR ASAA2023062943838](https://openairdocs.org/sdr/ASAA2023062943838.md): Unknown · unknown · Jun 29, 2023 · N946AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > LEFT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED AT CRZ. GROUNDED - YES. RESET PER QRH PROCEDURE LIGHT WENT OUT AND REMAINED EXTINGUISHED.
- [SDR ASAA2023062943799](https://openairdocs.org/sdr/ASAA2023062943799.md): Unknown · unknown · Jun 29, 2023 · N946AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > L SIDE WINDOW (L2 WINDOW) OVERHEAT LIGHT ILLUMINATED IN CRUISE. PER QRH HEAT SELECTED OFF FOR 5 MINUTES, THEN BACK ON. NORMAL OPERATION THEREAFTER. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM TASK 30-41-00-41-00-810-835. INITIAL EVALUATION PASSES.
- [SDR ASAA2023062543755](https://openairdocs.org/sdr/ASAA2023062543755.md): Unknown · unknown · Jun 25, 2023 · N946AK · Boeing 7379 · Alternator-Generator Drive
  > #2 GEN DRIVE WILL INTERMITTANTLY NOT ILLUMINATE WITH ENGINE OFF(PRI 2). GROUNDED - YES. REF IFIM TASK 24-11-00-810-804 PERFORMED GCU BITE TEST, BITE TEST PASSED.PERFORMED WIRE CHECK BETWEEN PIN-61 OF CONNECTOR D10892A AND PIN-16 OF CONNECTOR D636 WIRE TEST GOO
- [SDR ASAA2023062443714](https://openairdocs.org/sdr/ASAA2023062443714.md): Unknown · unknown · Jun 24, 2023 · N946AK · Boeing 7379 · Alternator-Generator Drive
  > ENG #2 DRIVE LIGHT DID NOT ILLUMINATE EXCEPT IN TEST. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023062143676](https://openairdocs.org/sdr/ASAA2023062143676.md): Unknown · unknown · Jun 21, 2023 · N946AK · Boeing 7379 · Alternator-Generator Drive
  > #2 DRIVE LIGHT NOT ILLUMINATED EXCEPT DURING LIGHT TEST. GROUNDED - YES. PERFORMED GCU #2 BITE TEST. REF AMM 24-21-81. BITE TEST GOOD. #2 DRIVE LIGHT ILLUMINATED. AIRCRAFT IS RELEASED FROM MEL 24-11-02. PLACARD REMOVED.
- [SDR ASAA2023051843302](https://openairdocs.org/sdr/ASAA2023051843302.md): Igniter · inoperative · May 18, 2023 · N946AK · Boeing 7379 · Spark Plug/Igniter
  > ENG #1 WILL NOT START AFTER START LEVER POSITIONED TO IDLE-NO EGT LIGHT OFF AFTER 15 SECONDS ENG IGNITION SWITCH WAS IN THE R POSITION. GROUNDED - YES. REMOVED AND REPLACED R/H AND L/H #1 ENGINE IGNITER PLGS IAW B737-9 AMM 74-21-02 PERFORMED OPS CHECK OK.
- [SDR ASAA2023050743172](https://openairdocs.org/sdr/ASAA2023050743172.md): Control Unit · faulty · May 7, 2023 · N946AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > IN CRUISE @ FL300 WINDOW OVERHEAT (R1) ILLUMINATED. FOLLOWED QRH, LIGHT ILLUMINATED AGAIN. GROUNDED - YES. REF B737-9 AMM 30-41-11 REMOVED AND REPLACED WHCU, OPS TEST GOOD.
- [SDR ASAA2023042543164](https://openairdocs.org/sdr/ASAA2023042543164.md): Starter · degraded · Apr 25, 2023 · N946AK · Boeing 7379 · Engine Cranking
  > UPON LANDING, MAINT CAUTION LIGHT ILLUMINATED ON OVERHEAD PANEL NO OTHER CAUTION LIGHTS APPEARED TO ILLUMINATE. GROUNDED - YES. REMOVED #2 ENG ODMS SENSOR, ACCOMPLISHED ASA T/C 79-ASA-02 STEPS 1-2.B(5) FOUND PARTICLES AND SENT OUT FOR ANALYSIS, REMOVED ALL 4 S
- [SDR ASAA2023031542369](https://openairdocs.org/sdr/ASAA2023031542369.md): Unknown · unknown · Mar 15, 2023 · N946AK · Boeing 7379 · Flight Management Computing Hardware System
  > CRUISE, DES PERF NOT LOADING CLB. GROUNDED - YES. FOUND TAT DASHED OUT AND PROBE HEAT ON. TURNED PROBE HEAT TO AUTO, TEMP SHOWED READING. NORMAL OPERATION.
- [SDR ASAA2023021842021](https://openairdocs.org/sdr/ASAA2023021842021.md): Unknown · unknown · Feb 18, 2023 · N946AK · Boeing 7379 · Auto Throttle System
  > THRUST MODE ANNUNCIATOR STAYS IN CRZ AFTER LEVEL OFF. PER OUR OPTIONS IT SHOULD STAY IN CLB. SUGGEST CHECKING SOFTWARE LOAD. GROUNDED - YES. VERIFIED SOFTWARE LDDB P/N IS 557362-005 VIA MAINTENANCE LAPTOP ONS. FOUND NO RELATED FAULTS ON CDU. REF B737-9 IFIM 22
- [SDR ASAA2023013041717](https://openairdocs.org/sdr/ASAA2023013041717.md): Unknown · unknown · Jan 30, 2023 · N946AK · Boeing 7379 · Airfoil Anti/De-ice System
  > HISTORY OF LEFT WING ANTI ICE VALVE LIGHT ILLUMINATION. ACCOMPLISH ENG ASA TC MAX-30EA-25064. GROUNDED - YES. ACCOMPLISHED ASA TC MAX-30EA-25064 LH WING THERMAL ANTI-ICE VALVE INLET TUBE INSPECTION. FOUND MOISTURE INSIDE INLET TUBE. BLEW OUT MOISTURE FROM TUBE
- [SDR ASAA2023012741702](https://openairdocs.org/sdr/ASAA2023012741702.md): Warning Light · false activation · Jan 27, 2023 · N946AK · Boeing 7379 · Central Warning
  > WING ANTI-ICE LEFT VALVE LIGHT ON CONTINUOUSLY WHEN WING ANTI ICE SWITCH ON. GROUNDED - YES. PERFORMED TEST OF WAI PER B737-9 AMM 30-11-11-710-801 OPS CHECK NORMAL LEFT WAI VALVE LANYARD VERIFIED CORRECT INSTALLATION.
- [SDR ASAA2023010141343](https://openairdocs.org/sdr/ASAA2023010141343.md): Warning Light · false indication · Jan 1, 2023 · N946AK · Boeing 7379 · Battery/Charger System
  > ELEC LIGHT ILLUMINATED ON TAXI IN. GROUNDED - YES. ACCOMPLISHED ELEC LIGHT MESSAGE BITE PROCEDURE SHOW 1 FAULT AUX BATT CHARGER INOP. ACCOMPLISHED ELEC LIGHT RESET FAULT CLEARED. REACCOMPLISHED BITE CK NO FAULTS NOTED GROUND VERIFICATION CK'S GOOD. ALSO VERIFI
- [SDR ASAA2022123141328](https://openairdocs.org/sdr/ASAA2022123141328.md): Unknown · unknown · Dec 31, 2022 · N946AK · Boeing 7379 · Auto Throttle System
  > IN CRUISE FLIGHT, THRUST MODE SYSTEM IN CRZ INSTEAD OF CLB. GROUNDED - YES. PERFORMED DFCS OPS TEST PER AMM 22-11-740-801 OPS TEST PASSED. DFCS FAULT REVIEW SHOWS NO FAULTS ON LAST LEG. AUTO THROTTLE OPS TEST PER AMM 22-31-00-710-801 TEST PASSED NO AUTOTHROTT
- [SDR ASAA2022122731249](https://openairdocs.org/sdr/ASAA2022122731249.md): Valve · faulted · Dec 23, 2022 · N946AK · Boeing 7379 · Engine Bleed Air System
  > DURING DESCENT LEFT BLEED LIGHT ILLUMINATED. RESET PER QRM. LIGHT CAME BACK ON AFTER A FEW MINIUTES. GROUNDED - YES. FOLLOWED MX MSG 36-00160. PERFORMED INITIAL EVALUATION B. THE FAULT ISOLATION PROCEDURE. C MAINTENANCE MESSAGES FOUND IN 36 PNEUMATICS. STEP (2

## 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 = 'N946AK' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N946AK/reports

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