# Service difficulty reports: N428AS

A list on [N428AS](https://openairdocs.org/aircraft/N428AS.md).

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

Page 1 of 5 · 250 reports

- [SDR ASAA2026101169225](https://openairdocs.org/sdr/ASAA2026101169225.md): Door · no discrepancy · Oct 11, 2026 · N428AS · Boeing 737990ER · Passenger/Crew Doors
  > L1 DOOR REQUIRES MORE FORCE THAN NORMAL TO OPEN AND CLOSE. GROUNDED - YES. ACCOMPLISHED FWD ENTRY DOOR CHECK, REF AMM 52-11-00, OPS CHECK GOOD CYCLED DOOR MULTIPLE TIMES USING BOTH INTERIOR AND EXTERNAL DOOR HANDLES FOR OPERATION, DOOR IS SECURED AND OPENS NOR
- [SDR ASAA2026022664788](https://openairdocs.org/sdr/ASAA2026022664788.md): Shield · corroded · Feb 26, 2026 · N428AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT PIT RH SIDE DOOR CUTOUT SHIELD PANEL HAS POSSIBLE CORROSION IN (5EA) SCREW HOLES AND UNDER NUTPLATES AT BETWEEN STA 787 TO 767 CIRCLES IN RED. GROUNDED - YES. REMOVED AND INSTALLED A NEW SHIELD PANEL AT AFT PIT R/H SIDE DOOR CUTOUT APROX STA 787 TO 767 IAW
- [SDR ASAA2026022564789](https://openairdocs.org/sdr/ASAA2026022564789.md): Web · corroded · Feb 25, 2026 · N428AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO DOOR CUTOUT, FORWARD LOWER CORNER ATTACH INTERCOSTAL CORRODED. BS788. GROUNDED - YES. REMOVED AND INSTALLED A NEW LOWER CORNER ATTACH INTERCOSTAL OF AFT CARGO DOOR CUTOUT BS788 IAW B737-900 SRM 51-40-01 AND B737-900 SRM 51-40-05 AND BAC DWG#146A8320
- [SDR ASAA2026022465016](https://openairdocs.org/sdr/ASAA2026022465016.md): Floorbeam · corroded · Feb 24, 2026 · N428AS · Boeing 737990ER · Fuselage Main, Floor Beam
  > AFT WET AREA BS1016 RBL 30 FLOOR STRUCTURE CORRODED. A(K352). GROUNDED - YES. REMOVED CORROSION IAW SRM 53-70-51-1A-1. ORIG MAT.150, REMAINING MAT.070. MAT LOSS OF.080 IS BEYOND ALLOWABLE LIMITS. REPAIRED AREA IAW EA 900ER-53EA-30025 REV 00. THIS IS A CATEG
- [SDR ASAA2026021964814](https://openairdocs.org/sdr/ASAA2026021964814.md): Support Angle · corroded · Feb 19, 2026 · N428AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > LAV SUPPORT ANGLE AT STA 917 LBL54 HAS CORROSION. GROUNDED - YES. REMOVED CORROSION-ORIGINAL THICKNESS.150, REMOVED.110, REMAINING IS.040 AND REQUIRES REPLACEMENT DUE TO NO LIMITS GIVEN IN THE SRM. REMOVED AND REPLACED INTERCOSTAL P/N 147A5690U8 PO#1141724.
- [SDR ASAA2026021964792](https://openairdocs.org/sdr/ASAA2026021964792.md): Transition Panel · corroded · Feb 19, 2026 · N428AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO LH TRANSITION PANEL HAS CORROSION BETWEEN STATIONS 727I TO FWD BULKHEAD. GROUNDED - YES. REMOVED CORROSION BETWEEN STA. 737I - FWD BULKHEAD. ORIGINAL THICKNESS.040 MAT LOSS AT GREATEST POINTS.007, AT LOWEST POINT REMAINING THICKNESS AT.033 AREAS O
- [SDR ASAA2026021964791](https://openairdocs.org/sdr/ASAA2026021964791.md): Transition Panel · corroded · Feb 19, 2026 · N428AS · Boeing 737990ER · Fuselage Main, Structure
  > AFT CARGO RH TRANSITION PANEL HAS CORROSION BETWEEN STATIONS 727I TO FWD BULKHEAD. GROUNDED - YES. REMOVED CORROSION BETWEEN 727I - FWD BULKHEAD. ORIG. THICKNESS.040, MAT LOSS AT GREATEST.008, NEW THICKNESS AT LOWEST.032. AREAS OUT OF LIMITS PER B737-900 SR
- [SDR ASAA2026021964790](https://openairdocs.org/sdr/ASAA2026021964790.md): Transition Panel · corroded · Feb 19, 2026 · N428AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO RH TRANSITION PANEL HAS CORROSION BETWEEN STATIONS 727I - 767. GROUNDED - YES. REMOVED CORROSION BETWEEN STA 727I-767 ORIG THICKNESS.040, MAT LOSS AT GREATEST.010, NEW THICKNESS AT LOWEST.030. AREAS OUT OF LIMITS PER B737-900 SRM 53-00-53-1A-1 FAB
- [SDR ASAA2026021964787](https://openairdocs.org/sdr/ASAA2026021964787.md): Web · corroded · Feb 19, 2026 · N428AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO DOOR CUTOUT SILL AREA HAS A FEW SPOTS OF CORROSION. GROUNDED - YES. REMOVED CORROSION. ORIGNAL THICKNESS.045 PER B737-900 SRM 53-60-15. MAT LOSS.008 AT LOWEST, NEW THICKNESS.037 AT LOWEST. AREA OUT OF LIMITS. LOCATED, DRILLED AND INSTALLED P#146A
- [SDR ASAA2026021964786](https://openairdocs.org/sdr/ASAA2026021964786.md): Transition Panel · corroded · Feb 19, 2026 · N428AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO LH TRANSITION PANEL HAS CORROSION BETWEEN STATIONS 727I-847. GROUNDED - YES. REMOVED CORROSION BETWEEN STA 727I-847, ORIG THICKNESS.040, MAT LOSS AT GREATEST.013, NEW THICKNESS AT LOWEST POINTS.027 MULTIPLE AREAS OUT OF LIMITS PER B737-900 SRM 53-
- [SDR ASAA2026021964785](https://openairdocs.org/sdr/ASAA2026021964785.md): Transition Panel · corroded · Feb 19, 2026 · N428AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > FWD CARGO LH TRANSITION PANEL HAS A PUNCTURE BETWEEN STA. 500-500A. GROUNDED - YES. REMOVED CORROSION ORIGINAL THICKNESS.040. MAT LOSS 100% AT PUNCTURE FABBED AND INSTALLED REPAIR PER B737-900 SRM 53-00-53-2R-5.
- [SDR ASAA2026021964784](https://openairdocs.org/sdr/ASAA2026021964784.md): Web · corroded · Feb 19, 2026 · N428AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > RH WEB STA 987-1006 RBL 26-46 HAS AREAS OF CORROSION. GROUNDED - YES. REMOVED CORROSION IAW B737-900 SRM 51-10-02-0G-0. ORIGINAL THICKNESS.080 IAW BAC DWG #147A5116 REV- REMAINING THICKNESS IS.050 TOOL #T8224B DUE 03DEC26..030 MAT LOSS. REMOVED AND REPLACED
- [SDR ASAA2024092452818](https://openairdocs.org/sdr/ASAA2024092452818.md): Apu · leaking · Sep 24, 2024 · N428AS · Boeing 737990ER · APU Core Engine
  > DESCENDING THROUGH 11,000', ALL 3 IN THE COCKPIT SMELLED SAME METALLIC SMELL AS PREVIOUSLY REPORTED. APU WAS NOT RUNNING MORE OR LESS AT IDLE POWER FROM TOD TO BELOW WHEN SMELL WAS NOTIFIED. F/AS DID NOT REPORT NOTICING ANY UNUSUAL ODOR. GROUNDED - YES. DURIN
- [SDR ASAA2024090952402](https://openairdocs.org/sdr/ASAA2024090952402.md): Circuit Breaker · open · Sep 9, 2024 · N428AS · Boeing 737990ER · Emergency Lighting
  > P6-11 A9 CABIN EMER LIGHT CB FOUND OPEN. GROUNDED - YES. RESET C/B - EMER LTS TEST GOOD.
- [SDR ASAA2024082652106](https://openairdocs.org/sdr/ASAA2024082652106.md): Power Supply · inoperative · Aug 26, 2024 · N428AS · Boeing 737990ER · Emergency Lighting
  > DURING EMERGENCY BATTERY PACK TASK CARD FOUND BATTERY PACK M1672 TO BE BAD. GROUNDED - YES. REMOVED AND REPALCED BATTERY PACK M1672 PER AMM 33-51-06 OPS CHECK OF EMRGENCY PACK GOOD AT THIS TIME.
- [SDR ASAA2024071551027](https://openairdocs.org/sdr/ASAA2024071551027.md): Battery Pack · faulty · Jul 15, 2024 · N428AS · Boeing 737990ER · Emergency Lighting
  > M1670 EMERGENCY EXIT LIGHT BATTERY PACK & M2335 FOUND BAD AFFECTS L1507,L1210,L1506 AND L547,L6 AND L1515. GROUNDED - YES. REMOVED AND REPLACED M1670 AND M2335 EMERGENCY EXIT BATTERY PACK AND RESOLVED ALL AFFECTED LIGHTS OPS CHECK ALL NORMAL, REF AMM 33-51-06-
- [SDR ASAA2024060650097](https://openairdocs.org/sdr/ASAA2024060650097.md): Lens · detached · Jun 6, 2024 · N428AS · Boeing 737990ER · Emergency Lighting
  > MISSING P/N 702409-1008 ROW 16ABC EMERGENCY EXIT SIGN REF IPC 11-32-00-51 ITEM 350. GROUNDED - YES. EMERGENCY EXIT SIGN LENS FOUND AT LAX. REPLACED LENS AT ROW 16ABC REF:AMM 33-51-01-960-801. OPS CK NORMAL, A/C OK FOR SERVICE.
- [SDR ASAA2023102845901](https://openairdocs.org/sdr/ASAA2023102845901.md): Unknown · unknown · Oct 28, 2023 · N428AS · Boeing 737990ER · Airborne Auxiliary Power Unit (APU) System
  > APU NO ELECTRIC. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023102445819](https://openairdocs.org/sdr/ASAA2023102445819.md): Unknown · unknown · Oct 24, 2023 · N428AS · Boeing 737990ER · Weather Radar System
  > CA SIDE RADAR SHOWS GROUND CLUTTER IN AUTO MODE. MANUAL MODE WORKS FINE. FO SIDE WORKS CORRECTLY IN AUTO OR MANUAL MODE. GROUNDED - YES. (RESOLVED ON W/O: 1974112 TASKCARD: N/R-00002) C/W WEATHER RADAR SYSTEM BITE AND OPS CHECK WITH NO FAULT NOTED. CLEARS MEL
- [SDR ASAA2023101745727](https://openairdocs.org/sdr/ASAA2023101745727.md): Pump · leaking · Oct 17, 2023 · N428AS · Boeing 737990ER · Engine Fuel Pump
  > WHILE PERFORMING AN IDLE LEAK CHECK OF #1 ENGINE. LARGE AMOUNT OF FUEL DRAINED OUT OF FUEL PUMP DRAIN PAD. GROUNDED - YES. FUEL PUMP REMOVED PER T/C 8473002FUEL PUMP INST PER T/C 8473003 LEAK AND OPS CK GOOD.
- [SDR ASAA2023092245248](https://openairdocs.org/sdr/ASAA2023092245248.md): Unknown · unknown · Sep 22, 2023 · N428AS · Boeing 737990ER · Engine Bleed Air System
  > WHILE PERFORMING T/C 78273000 FOUND #1 ENG SHORT TIME FAULT 75-30451 THE VBV POSITION DISAGREE. GROUNDED - YES. (RESOLVED ON W/O: 1970329 TASKCARD: N/R-00003) FAULT NOT ACTIVE ON CURRENT FAULTS. FAULT HISTORY SHOWS ON LEG 8 ONLY. CLEAR PLT. SEAMC MITCH.
- [SDR ASAA2023091845201](https://openairdocs.org/sdr/ASAA2023091845201.md): Unknown · unknown · Sep 18, 2023 · N428AS · Boeing 737990ER · APU Start/Ignition System
  > FAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL340. SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023090945008](https://openairdocs.org/sdr/ASAA2023090945008.md): Eec · faulty · Sep 9, 2023 · N428AS · Boeing 737990ER · Fuel Controlling System
  > WHILE PERFORMING T/C 78273000 FOUND #1 ENG SHORT TIME FAULTS 75-10451 AND 75-20451 THE VBV POSITION DISAGREE. GROUNDED - YES. (RESOLVED ON W/O: 1968547 TASKCARD: N/R-00002) INITIAL EVALUATION PERFORMED EEC BITE PROCEDURE REF FIM 73-00 TASK 801. BITE TEST REV
- [SDR ASAA2023090545032](https://openairdocs.org/sdr/ASAA2023090545032.md): Unknown · unknown · Sep 5, 2023 · N428AS · Boeing 737990ER · Airborne Auxiliary Power Unit (APU) System
  > REF LOG PAGE #60441010 APU FAULT LIGHT ILLUMINATED DURING CSS ATTEMPT. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023090244895](https://openairdocs.org/sdr/ASAA2023090244895.md): Unknown · unknown · Sep 2, 2023 · N428AS · Boeing 737990ER · Wing Structure
  > WHILE PERFORMING T/C 78273000 FOUND #1 ENGINE SHORT TIME FAULT MASG NBR 75-10451 THE VBV POSITION SIGNALS DISAGREE. GROUNDED - YES. (RESOLVED ON W/O: 1967781 TASKCARD: N/R-00003) PERFORMED EEC BITE TEST PROCEDURE AND ACTUATOR TEST PER FIM 75-32 TASK 803 NO FA
- [SDR ASAA2023090145045](https://openairdocs.org/sdr/ASAA2023090145045.md): Indicator · malfunctioned · Sep 1, 2023 · N428AS · Boeing 737990ER · Fuel Quantity Indicator
  > #2 REFUEL VALVE REQUIRES MANUAL OPERATION. GROUNDED - YES. (RESOLVED ON W/O: 1967254 TASKCARD: N/R-00002) TROUBLE SHOT PER WDM 28-44-11 AND SSM28-44-11 FOUND #2 REFUELING QTY INDICATOR BAD. REMOVED #2 REFUELING QTY IND PER AMM 28-41-61-000-801. INSTALLED #2 R
- [SDR ASAA2023083044874](https://openairdocs.org/sdr/ASAA2023083044874.md): Control Panel · faulty · Aug 30, 2023 · N428AS · Boeing 737990ER · Fire Protection System
  > FAULT LIGHT ILLUMINATED DURING APU START ATTEMPT @ FL 350 SUCCESSFUL CSS ACCOMPLISHED DURING DESCENT, AFTER FAULT LIGHT EXTINGUISHED, @ FL 310. GROUNDED - YES. R&R OF APU FIREPANEL, GOOD APU START, NO FAULTS. PER SEAMC JEREMY OK TO CLEAR MEL 49-1B. PLACARDS RE
- [SDR ASAA2023082444763](https://openairdocs.org/sdr/ASAA2023082444763.md): Battery · inoperative · Aug 24, 2023 · N428AS · Boeing 737990ER · Emergency Lighting
  > THE FOLLOWING EMER LIGHTS ARE INOP IN PASSENGER CABIN, R2 DOOR IN FRONT OF G4 GALLEY, LH OVERWING OVERDOOR FWD & AFT, PH BIN AT ROW 9DEF & 13 DEF, OH BIN AT ROW 16ABC, & OH BIN AT ROW 25DEF. GROUNDED - YES. REMOVED & INSTALLED SERVICABLE EMER LIGHT POWER SUPPL
- [SDR ASAA2023082144760](https://openairdocs.org/sdr/ASAA2023082144760.md): Battery · inoperative · Aug 21, 2023 · N428AS · Boeing 737990ER · Emergency Lighting
  > FWD CLOSEOUT PANEL EXIT LIGHT IS INOP. GROUNDED - YES. REMOVED AND INSTALLED SERVICEABLE EMERG. LIGHTS BATTERY PACK OPS CHECKS GOOD IAW B737-900 AMM 33-51-06-000-802, 25-21-71-000-820.
- [SDR ASAA2023080544442](https://openairdocs.org/sdr/ASAA2023080544442.md): Unknown · unknown · Aug 5, 2023 · N428AS · Boeing 737990ER · Flight Management Computing Hardware System
  > LEFT FMC FAIL. GROUNDED - YES. PERFORMED FMC CB RESET PER FIM 34-61 TASK 836 OPS CHECK NML.
- [SDR ASAA2023071944124](https://openairdocs.org/sdr/ASAA2023071944124.md): Unknown · unknown · Jul 19, 2023 · N428AS · Boeing 737990ER · Engine Bleed Air System
  > WHILE ACCOMPLISHING TASK CARD # 78273000 FOUND SHORT TIME FAULT CODE # 75-30451 "THE VBV POSITION SIGNALS DISAGREE" ON ENG #1. GROUNDED - YES. (RESOLVED ON W/O: 1961389 TASKCARD: N/R-00003) DURING FLT FAULT CHECKED, NO FAULTS LOGGED IN HISTORY PAGE. ACCOMPLIS
- [SDR ASAA2023071244016](https://openairdocs.org/sdr/ASAA2023071244016.md): Unknown · unknown · Jul 12, 2023 · N428AS · Boeing 737990ER · Fuel Controlling System
  > WHILE PERFORMING TC 78273000, FOUND MSG 73-11162 LONG TIME FAULT ON ENG #2. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023070943943](https://openairdocs.org/sdr/ASAA2023070943943.md): Unknown · unknown · Jul 9, 2023 · N428AS · Boeing 737990ER · Fuel Controlling System
  > WHILE PERFORMING T/C 78273000 FOUND LONGTIME FAULT ON #2 ENGINE MTX MSG 73-31162 THE MECHANICAL OVERSPEED PROTECTION SIGNAL IS OUT OF RANGE. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023062643739](https://openairdocs.org/sdr/ASAA2023062643739.md): Battery Pack · inoperative · Jun 26, 2023 · N428AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY AISLE LIGHT AT SEAT ROW 27 LEFT INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY M2626 REF AMM 33-51-06. OPS CHECK GOOD.
- [SDR ASAA2023062343709](https://openairdocs.org/sdr/ASAA2023062343709.md): Lamp · inoperative · Jun 23, 2023 · N428AS · Boeing 737990ER · Emergency Lighting
  > R/H OVERWING AFT EMERGENCY LIGHT INOP. GROUNDED - YES. RELAMPED R/H AFT OVERWING EMERGENCY LIGHT, OPS CHECK GOOD REF AMM 33-51-04.
- [SDR ASAA2023061443687](https://openairdocs.org/sdr/ASAA2023061443687.md): Unknown · unknown · Jun 14, 2023 · N428AS · Boeing 737990ER · Fuel Controlling System
  > WHILE PREFORMING T/C 78273000. FOUND LONGTIME FAULT ON #2 ENGINE MTX MSG 73-21162 THE MECHANICAL OVERSPEED PROTECTION SIGNAL IS OUT OF RANGE. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023052743371](https://openairdocs.org/sdr/ASAA2023052743371.md): Charger · inoperative · May 27, 2023 · N428AS · Boeing 737990ER · Battery/Charger System
  > BATTERY DISCHARGE LIGHT ILLUMINATED. GROUNDED - YES. M5 BAT CHARGER STATUS LIGHTS OFF. CONFIRMED CORRECT VOLTAGE @ D42 PINS 10, 7, AND 4. P92 C809 CYCLE NO HELP. REMOVED AND REPLACED MAIN BATTERY CHARGER (M5) PER B737-900 AMM 24-31-21.
- [SDR ASAA2023052643380](https://openairdocs.org/sdr/ASAA2023052643380.md): Unknown · unknown · May 26, 2023 · N428AS · Boeing 737990ER · Flight Management Computing Hardware System
  > FMC PROMPTS NOT AVAILABLE VTK ON CA SIDE. GROUNDED - YES. RESET 2 BREAKERS IAW B737-900 FIM 34-61 TASK 807.
- [SDR ASAA2023042242964](https://openairdocs.org/sdr/ASAA2023042242964.md): Unknown · unknown · Apr 22, 2023 · N428AS · Boeing 737990ER · Air Intake Anti/De-Ice System
  > ENG ANTI-ICE #2 COWL VALVE OPEN LIGHT (BLUE) STAYS ON WITH SWITCH OFF, WITH CORRESPONDING AMBER TAI ON THE ENGINE DISPLAY. GROUNDED - YES. OPERATED #2 ENG COWL ANTI-ICE VALVE MANUALLY & PERFORMED OPERATIONAL TEST IAW B737-900 AMM 30-21-00-710-801. OPS CHECK GO
- [SDR ASAA2023040242742](https://openairdocs.org/sdr/ASAA2023040242742.md): Exciter · failed · Apr 2, 2023 · N428AS · Boeing 737990ER · Ignition Power Supply
  > ENG #1 NO LIGHT OFF DURING START. GROUNDED - YES. REMOVED AND REPLACED #1 ENG L/H EXITER AND IGNITOR, AUDIBLE TEST FAILED REF AMM'S 74-11-01 + AMM 74-21-02, SUSPECT BAD HARNESS, REQUIRES FURTHER TROUBLESHOOTING. REMOVED & REPLACED #1 IGNITION LEAD IAW AMM 74-
- [SDR ASAA2023032542558](https://openairdocs.org/sdr/ASAA2023032542558.md): Actuator · faulty · Mar 25, 2023 · N428AS · Boeing 737990ER · Autopilot System
  > AUTOPILOT A WILL NOT STAY ENGAGED. USED AUTOPILOT B. GROUNDED - YES. B737-900 FIM 22-11 TASK 856 PREVIOUS FLT LEG LOGGED FAULT MSG22-11189. FIM 22-12 TASK 813 DFCS AUTOPILOT TEST FAILED AND LOGGED MSG22-11134, MSG22-11122, MSG22-11125, MSG22-11126. AILERON RIG
- [SDR ASAA2023031342315](https://openairdocs.org/sdr/ASAA2023031342315.md): Unknown · unknown · Mar 13, 2023 · N428AS · Boeing 737990ER · Autopilot System
  > AUTOPILOT A WILL NOT REMAIN ENGAGED. GROUNDED - YES. PERFORMED DFCS BITE REF B737-900 FIM 22-11 TASK 801. UNDER FAULT HISTORY LEG 1 CH. A FOUND ENGAGE ATTEMPT FAULTS AIL SYNC INV >4 SEC MSG 22-11189 AND AIL ACT PRESS LCL INV MSG 22-11147. REF FIM 22-13 TASK 80
- [SDR ASAA2023031142303](https://openairdocs.org/sdr/ASAA2023031142303.md): Unknown · unknown · Mar 11, 2023 · N428AS · Boeing 737990ER · Ice/Rain Protection System
  > COWL VALVE OPEN WHEN OFF DISAGREEMENT WITH THE SWITCH POSITION NOTICED ON ROLLOUT. GROUNDED - YES. IAW B737-900 FIM 30-21 TASK 804 PRSOV MANUAL OVERRIDE TO OPEN POSITION COWL VALVE OPEN LIGHT EXTINGUISHED. CYCLED ENGINE ANTI-ICE VALVE, COWL VALVE OPEN LIGHT OP
- [SDR ASAA2023022242043](https://openairdocs.org/sdr/ASAA2023022242043.md): Igniter · inoperative · Feb 22, 2023 · N428AS · Boeing 737990ER · Ignition Harness (Distribution)
  > 3 ATTEMPTS #1 ENGINE HUNG START, GOOD N1 AND N2 ROTATION, GOOD FUEL FLOW, NO IGN RISE. GROUNDED - YES. REMOVED AND REPLACED L IGNITER PLUG #1 ENG OPS CHECK GOOD. PER B737-900 AMM 74-21-02.
- [SDR ASAA2023021941996](https://openairdocs.org/sdr/ASAA2023021941996.md): Unknown · unknown · Feb 19, 2023 · N428AS · Boeing 737990ER · Flight Management Computing Hardware System
  > SINGLE L FMC FAIL. VTK AND AMBER "MAP" ON CA SIDE ND INFLIGHT. FMC BOTH ON RIGHT FOR SINGLE FMC OPS FOR REMAINDER OF FLIGHT. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 801 FOUND MULTIPLE PGM FAULTS ON LAST LEG PERFORMED C/B RESET AND ALL DISPLAY FLAGS E
- [SDR ASAA2023021642002](https://openairdocs.org/sdr/ASAA2023021642002.md): Eec · faulty · Feb 16, 2023 · N428AS · Boeing 737990ER · Fuel Controlling System
  > NO LIGHT OFF ON #1 ENGINE USING IGN R. GROUNDED - YES. REMOVED & REPLACED #1 ENG EEC, CLOSED 4 C/B, PERFORMED ALL INSTALLATION TESTS PASSED REF B737-900 AMM 73-21-60/401.
- [SDR ASAA2023021041929](https://openairdocs.org/sdr/ASAA2023021041929.md): Spinner · damaged · Feb 10, 2023 · N428AS · Boeing 737990ER · Turbine Engine Air Inlet Section
  > REF ASA T/C 78472000 ENG INLET & FAN DETAILED INSP FOUND #2 ENG S/N 854343 FRONT SPINNER CONE WHITE ANTI EROSION PAINT MISSING BY 50%. GROUNDED - YES. REMOVED & REPLACED #2 ENGINE SPINNER CONE REF B737-900 AMM 72-21-01.
- [SDR ASAA2023020841889](https://openairdocs.org/sdr/ASAA2023020841889.md): Actuator · faulty · Feb 8, 2023 · N428AS · Boeing 737990ER · Cabin Cooling System
  > LEFT PACK LIGHT ILLUMINATED ON TAXI OUT, EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED RAM AIR INLET ACTUATOR REF B737-900 AMM 21-51-21.
- [SDR ASAA2023020741867](https://openairdocs.org/sdr/ASAA2023020741867.md): Unknown · unknown · Feb 7, 2023 · N428AS · Boeing 737990ER · Cabin Cooling System
  > ON SHUTDOWN LEFT "RAM DOOR FULL OPEN" LIGHT IS NOT ILLUMINATED ON POST FLIGHT WALK AROUND LEFT RAM DOOR IN CLOSED. GROUNDED - YES. PERFORMED LH PACK TEMP CONTROL BITE PER B737-900 FIM 21-62 TASK 801. FOUND FAULT 21-51405 SRADA INLET. PERFORMED FIM 21-62 TASK 8
- [SDR ASAA2023013041739](https://openairdocs.org/sdr/ASAA2023013041739.md): Unknown · unknown · Jan 30, 2023 · N428AS · Boeing 737990ER · Autopilot System
  > UNABLE TO SELECT F/D 1 AS MASTER OR ENGAGE CMD A IN FLIGHT.SEEMS TO OPERATE NOORMALLY ON GROUND.F/D 1 WAS SELECTED PRIOR TO TAKEOFF, BUT SWITCHED TO F/D 2 AS MASTER IN AIR. GROUNDED - YES. COULD NOT DUPLICATE MALFUNCTION.ADIRS, FCC'S, FMC'S & CDS LOGGED NO FAU

Next page: https://openairdocs.org/aircraft/N428AS/reports.md?page=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 = 'N428AS' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N428AS/reports

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