# Service difficulty reports: N487AS

A list on [N487AS](https://openairdocs.org/aircraft/N487AS.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 4 · 174 reports

- [SDR ASAA2026071667388](https://openairdocs.org/sdr/ASAA2026071667388.md): Lamp · inoperative · Jul 16, 2026 · N487AS · Boeing 737990ER · Emergency Lighting
  > AFT EXIT ROW LEFT OVERWING LIGHT INOPERATIVE. GROUNDED - YES. REMOVED & REPLACED LEFT AFT EXIT ROW OVERWING LAMP IAW AMM 33-51-04. OPS CHECK GOOD.
- [SDR ASAA2025102061745](https://openairdocs.org/sdr/ASAA2025102061745.md): Door · no discrepancy · Oct 20, 2025 · N487AS · Boeing 737990ER · Passenger/Crew Doors
  > L1 DOOR JAMMED WHILE OPENING. EXCESSIVE FORCE WAS REQUIRED TO GET IT TO SWIVEL. GROUNDED - YES. VERIFIED WITH CSA AGENT L1 DOOR NOT LATCHED AND CLOSED WHEN ATTEMPTING TO OPEN DOOR FROM THE INSIDE OF ACFT. ACCOMPLISHED AMM TASK 52-11-00-200-801, FWD DOOR ENTRY
- [SDR ASAA2025051057828](https://openairdocs.org/sdr/ASAA2025051057828.md): Power Supply · inoperative · May 10, 2025 · N487AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M1670 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED NEW POWER SUPPLY M1670 IAW B737 AMM 33-5106-960-806. TEST GOOD. (S/N 126432)
- [SDR ASAA2025050557811](https://openairdocs.org/sdr/ASAA2025050557811.md): Power Supply · inoperative · May 5, 2025 · N487AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHT ASSOCIATED WITH POWER SUPPLY M1676 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M1676 S/N 127239 AND OPS CHECK GOOD IAW B737 AMM 33-51-06.
- [SDR ASAA2025050557810](https://openairdocs.org/sdr/ASAA2025050557810.md): Power Supply · inoperative · May 5, 2025 · N487AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHT ASSOCIATED WITH POWER SUPPLY M1695 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M1695 S/N 127237 AND OPS CHECK GOOD IAW B737 AMM 33-51-06.
- [SDR ASAA2025042157669](https://openairdocs.org/sdr/ASAA2025042157669.md): Web · corroded · Apr 21, 2025 · N487AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT PIT ENTRY HAS CORROSION ON SILL THRESHOLD THROUGH OUT. GROUNDED - YES. REMOVED CORROSION ON AFT PIT THRESHOLD WEB, ORIGINAL MATERIAL THICKNESS.050, REMOVED.027, REMAINING.023, FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-60-15-1A-1. REMOVED DAMAGED W
- [SDR ASAA2025041557815](https://openairdocs.org/sdr/ASAA2025041557815.md): Power Supply · inoperative · Apr 15, 2025 · N487AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M1675 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M1675 S/N 127693 IAW B737-NG AMM 33-51-06. OPS CHECK GOOD.
- [SDR ASAA2025041557814](https://openairdocs.org/sdr/ASAA2025041557814.md): Power Supply · inoperative · Apr 15, 2025 · N487AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M2335 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M2335 S/N 127214 AND OPS CHECK GOOD IAW B737 AMM 33-51-06.
- [SDR ASAA2025041557813](https://openairdocs.org/sdr/ASAA2025041557813.md): Power Supply · inoperative · Apr 15, 2025 · N487AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M1670 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M1670 S/N 123113 AND OPS CHECK GOOD IAW B737 AMM 33-51-06.
- [SDR ASAA2025041557812](https://openairdocs.org/sdr/ASAA2025041557812.md): Power Supply · inoperative · Apr 15, 2025 · N487AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M2626 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY M2626 S/N 127569 AND OPS CHECK GOOD IAW B737 AMM 33-51-06.
- [SDR ASAA2024080251539](https://openairdocs.org/sdr/ASAA2024080251539.md): Light · damaged · Aug 2, 2024 · N487AS · Boeing 737990ER · Emergency Lighting
  > FA REPORTS PHOTO ILLUMINESCENT STRIP COMING OFF BY ROW 1. GROUNDED - YES. (RESOLVED ON W/O: 2011873 TASKCARD: N/R-00004) REMOVED AND REPLACED PHOTO ILLUMINESCENT STRIP ON THE LEFT SIDE OF ROW 1 REF AMM 33-51-15. THIS CLEARS MEL 33-19B C/N 02065487. SEAMC WILL
- [SDR ASAA2024020247693](https://openairdocs.org/sdr/ASAA2024020247693.md): Snubber · malfunctioned · Feb 2, 2024 · N487AS · Boeing 737990ER · Passenger/Crew Doors
  > FA REPORTS L2 DOOR DIFFICULT 2 OPEN. GROUNDED - YES. EXAMINED DOOR AND FOUND DOOR TO BE BINDING HALFWAY THROUGH OPENING SEQUENCE. REMOVED AND REPLACED L2 DOOR SNUBBER REF AMM 52-31-51-000-801 AND 52-13-51-400-801. ADJUSTED L2 DOOR GUIDE ARM REF AMM 52-13-00-82
- [SDR ASAA2023111146109](https://openairdocs.org/sdr/ASAA2023111146109.md): Unknown · unknown · Nov 11, 2023 · N487AS · Boeing 737990ER · Cabin Temperature Control System
  > CONT CAB ZONE TEMP ILLUMINATED. EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. INTERROGATED PACK ZONE TEMP CONTROLLER FOUND TRIM VALVE FAULT. FAULT CLEARED AFTER TEST PER B737-900 FIM 21-62 TASK 801.
- [SDR ASAA2023110846075](https://openairdocs.org/sdr/ASAA2023110846075.md): Unknown · unknown · Nov 8, 2023 · N487AS · Boeing 737990ER · DC Generating System
  > UPON ARRIVAL AT AIRCRAFT TR UNIT LIGHT ILLUMINATED AND ELEC LIGHT ILLUMINATED. GROUNDED - YES. FOUND TRU 1 BREAKER OPEN. RESET IAW AMM 20-61-01.TRU 1 OPS CKS GOOD FAULTS (ELEC LIGHT/ TR UNIT LIGHT & AUX BATTERY CHARGER FAULT) CLEARED IAW FIM 24-31 TASK 826.NO
- [SDR ASAA2023102645900](https://openairdocs.org/sdr/ASAA2023102645900.md): Idg · faulty · Oct 26, 2023 · N487AS · Boeing 737990ER · Electrical Power System
  > #2 ENG GEN SOURCE OFF ILLUMINATES AFTER GENERATOR SELECTED ON. NO VOLTS/FREQ. GROUNDED - YES. (RESOLVED ON W/O: 1973923 TASKCARD: N/R-00001) REVERSED MEL MAINTENANCE PROCEDURES = ENG 2 IDG RESET AND RELAMPED DRIVE AND SOURCE LIGHTS. CLEARED FAULT ON #2 GCU, R
- [SDR ASAA2023102545830](https://openairdocs.org/sdr/ASAA2023102545830.md): Unknown · unknown · Oct 25, 2023 · N487AS · Boeing 737990ER · HF Communications System
  > FLT CREW REPORTS #1 HF FAIL. GROUNDED - YES. PERFORMED HF COMM SYSTEM BITE PER B737-900 FIM 23-11 TASK 801, OPS CHECK GOOD, #1 HF FAIL EXTINGUISHED.
- [SDR ASAA2023101545694](https://openairdocs.org/sdr/ASAA2023101545694.md): Unknown · unknown · Oct 15, 2023 · N487AS · Boeing 737990ER · Engine Temperature Indicating System
  > DURING EEC BITE TEST FOR #1 ENGINE FOUND FAULT MSG NBR 73-31371 (UPPER EGT SECTORS READING HIGH). REF T/C # 78273000. GROUNDED - YES. C/W B737-900 FIM 73-11 TASK 801. T49.5 PARAMETERS WERE WITHIN RANGE. EEC BITE TEST DID NOT SHOW FAULT IN FLIGHT LEG ZERO. NO F
- [SDR ASAA2023101545621](https://openairdocs.org/sdr/ASAA2023101545621.md): Fuel Heater · leaking · Oct 15, 2023 · N487AS · Boeing 737990ER · Fuel Heater
  > FUEL STREAMING OUT OF TOP CAP OF #1 ENGINE SERVO FUEL HEATER DURING MOTORING PROCEDURE. GROUNDED - YES. REEMOVED AND REPLACED#1 ENG FUEL HEATER SERVO REF B737-900 AMM 73-11-07 OPS AND LEAK CHECK GOOD.
- [SDR ASAA2023101345620](https://openairdocs.org/sdr/ASAA2023101345620.md): Unknown · unknown · Oct 13, 2023 · N487AS · Boeing 737990ER · Engine Temperature Indicating System
  > #1 ENG FAULT CODE 73-31371 UPPER EGT SECTORS READING HIGH. ECO FAULT. GROUNDED - YES. (RESOLVED ON W/O: 1972371 TASKCARD: N/R-00003) TEMPURATURES INDICATED AS FOLLOWS: S1-72.90, S2-38.10, S3-40.17, S4-274.33. S4 TEMPERATURE VALUES IS OUT OF LIMITS ACCOMPLISHE
- [SDR ASAA2023101245637](https://openairdocs.org/sdr/ASAA2023101245637.md): Unknown · unknown · Oct 12, 2023 · N487AS · Boeing 737990ER · Auto Throttle System
  > A/T ARM LIGHT ON MCP INOP. GROUNDED - YES. ACCOMP. SERVO MOTOR TEST, TEST PASS NO FAULTS. ALSO REF. NOTE FOR MCP REF. M/M 22-11-34-860-004 & M/M 22-31-00-860-011.
- [SDR ASAA2023101245579](https://openairdocs.org/sdr/ASAA2023101245579.md): Unknown · unknown · Oct 12, 2023 · N487AS · Boeing 737990ER · Autopilot System
  > CAT III AUTOLAND NOT SUCCESSFUL. AIRCRAFT DID NOT MAINTAIN CENTER LINE AND WAS APPROXIMATELY 50' LEFT OF THE CENTER LINE MARKINGS. NO WARNINGS OR LOCALIZER BEAM DISCREPENCIES WERE OBSERVED. GROUNDED - YES. (RESOLVED ON W/O: 1973326 TASKCARD: N/R-00001) PERFOR
- [SDR ASAA2023100945523](https://openairdocs.org/sdr/ASAA2023100945523.md): Unknown · unknown · Oct 9, 2023 · N487AS · Boeing 737990ER · Cabin Temperature Control System
  > CONT CAB ZONE TEMP ILLUMINATED, COMPLIED WITH QRH PROCEDURES. GROUNDED - YES. PERFOMRED BITE OF PACK TEMP CONTROLLER IAW FIM 21-62 TASK 801. FOUND FAULT IN PREVIOUS HISTORY FOR "FLT DECK TRIM VALVE". PERFOMRED FIM 21-62 TASK 832. PER INITIAL EVALUATION FAULT R
- [SDR ASAA2023090945037](https://openairdocs.org/sdr/ASAA2023090945037.md): Unknown · unknown · Sep 9, 2023 · N487AS · Boeing 737990ER · Navigation System
  > FO FMC "EXEC" BUTTON IS WORN AND INTERMITTENT. GROUNDED - YES. ACCOMPLISHED RIGHT CDU KEY TEST AND OBSERVED CORRECT OPERATION AND INDICATIONS OF ALL KEYS.
- [SDR ASAA2023070443864](https://openairdocs.org/sdr/ASAA2023070443864.md): Unknown · unknown · Jul 4, 2023 · N487AS · Boeing 737990ER · Auto Throttle System
  > AUTOTHROTTLE- ARM LIGHT INOP-IN MCP. GROUNDED - YES. MCP A/T ARM LIGHT INTENSITY WORKS WITH CAPT'S MAIN PANEL LIGHTING RHEOSTAT, REF B737-900 WDM 33-11-31.
- [SDR ASAA2023070143832](https://openairdocs.org/sdr/ASAA2023070143832.md): Unknown · unknown · Jul 1, 2023 · N487AS · Boeing 737990ER · Detection System
  > ENGINE NO 1 FIRE HANDLE WILL NOT ILLUMINATE DURING FIRE TEST. GROUNDED - YES. ARRIVED TO A/C WITH ENG #1 SYS B STILL FAULTING. PERFORMED RESISTANCE CHECK OF BTH MW0316 AND MW0326. ON CONN. DP1620 PIN 2 FOUND A BUILD UP OF FILM. CLEANED CONNECTOR REF SWPM 20-60
- [SDR ASAA2023063043798](https://openairdocs.org/sdr/ASAA2023063043798.md): Unknown · unknown · Jun 30, 2023 · N487AS · Boeing 737990ER · Detection System
  > ENGINE 1 LOOP B FAULT. GROUNDED - YES. REMOVED ENG/APU FIRE DET. MODULE B737-900 AMM 26-10-01. ALT. PIN 2 AND PIN 25, PIN 2 AND 12 READ 856 OHMS DURING SHAKE DOWN, NO FLUCTUATION NOTED. WIRING CHECKS NORMAL PER B737-900 FIM 26-10 TASK 805. REINSTALL ENG/APU FI
- [SDR ASAA2023062843814](https://openairdocs.org/sdr/ASAA2023062843814.md): Unknown · unknown · Jun 28, 2023 · N487AS · Boeing 737990ER · Engine Bleed Air System
  > SHORT TIME FAULT 75-30451 "THE VBV POSITION SIGNALS DISAGREE" FOUND ON #1 ENGINE. GROUNDED - YES. REMOVED FAN DUCT PANELS. AFTER INSPECTION FOUND 3 EA RING GUIDE PADS DISBONDED. 1 EA PAD LODGED BETWEEN VBV ACTUATOR AT THE 6 O'CLOCK POSITION. ALL DISBONDED GUID
- [SDR ASAA2023061943645](https://openairdocs.org/sdr/ASAA2023061943645.md): Control Panel · unknown · Jun 19, 2023 · N487AS · Boeing 737990ER · Autopilot System
  > HEAD WINDOW HARD TO READ IN MODE CONTROL PANEL. GROUNDED - YES. REMOVED AND REPLACED MODE CONTROL PANEL REF B737-900 AMM 22-11-34/401.
- [SDR ASAA2023051943417](https://openairdocs.org/sdr/ASAA2023051943417.md): Fuel Nozzle · faulty · May 19, 2023 · N487AS · Boeing 737990ER · APU Engine Fuel and Control
  > APU REPORTS SHOW A RAPID RISE IN CT5ATP TEMP AND HAS SURPASSED THE 605 DEGREE THRESHOLD. (#PRI1/ETOPS) CONTACT ETOPS MAINTENANCE CONTROL AND REPORT THAT THIS TASK HAS AFFECTED APU IN-FLIGHT START CAPABILITY, MEL 49-99A IS REQUIRED BEFORE FLIGHT. GROUNDED - YES
- [SDR ASAA2023051443249](https://openairdocs.org/sdr/ASAA2023051443249.md): Battery · inoperative · May 14, 2023 · N487AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHTS ASSOCIATED WITH POSER SUPPLY M1673 ARE INOP. GROUNDED - YES. REMOVED & REPLACED M1673 BATTERY & INSTALLATION TEST GOOD IAW B737-900 AMM 33-51-06-960-805.
- [SDR ASAA2023051443248](https://openairdocs.org/sdr/ASAA2023051443248.md): Battery · inoperative · May 14, 2023 · N487AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M1672 ARE INOP. GROUNDED - YES. REMOVED & REPLACED M1672 BATTERY & INSTALLATION TEST GOOD IAW B737-900 AMM 33-51-06-960-805.
- [SDR ASAA2023051443247](https://openairdocs.org/sdr/ASAA2023051443247.md): Battery · inoperative · May 14, 2023 · N487AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHTS ASSOCIATED WITH POWER SUPPLY M2627 ARE INOP. GROUNDED - YES. REMOVED & REPLACED M2627 BATTERY & INSTALLATION TEST GOOD IAW B737-900 AMM 33-51-06-960-805.
- [SDR ASAA2023032042438](https://openairdocs.org/sdr/ASAA2023032042438.md): Lamp · inoperative · Mar 20, 2023 · N487AS · Boeing 737990ER · Emergency Lighting
  > L2 SLIDE LIGHT INOP. GROUNDED - YES. RELAMPED REF. B737-900 AMM 33-51-04. OPS NORMAL.
- [SDR ASAA2023030442188](https://openairdocs.org/sdr/ASAA2023030442188.md): Filter · clogged · Mar 4, 2023 · N487AS · Boeing 737990ER · APU Oil System
  > REF T/C N8349002, FOUND OIL FILTER INDICATOR RED BUTTON EXTENDED ON APU. GROUNDED - YES. ACCOMPLISHED OIL FILTER INDICATOR SERVICING PER B737-900 AMM 49-91-13. REMOVED AND REPLACED LUBE FILTER ELEMENT REF AMM 49-91-12 AND INSPECTED MAGNETIC DRAIN PLUG REF AMM
- [SDR ASAA2023021041896](https://openairdocs.org/sdr/ASAA2023021041896.md): Unknown · unknown · Feb 10, 2023 · N487AS · Boeing 737990ER · Auto Throttle System
  > AUTOTHROTTLE DISENGAGED ATTEMPTED TO RE-ENGAGE AND AGAIN DISENGAGED. NOTED THE #2 THRUST LEVER ADVANCED AND #1 MAINTAINED COMMANED N1 SETTING. GROUNDED - YES. IAW B737-900 AMM 22-11-00-740-801 - DFCS OPS TEST ACCOMPLISHED. NO FAULTS SEEN. IAW AMM TASK 22-31-TA
- [SDR ASAA2023020241772](https://openairdocs.org/sdr/ASAA2023020241772.md): Detector · inoperative · Feb 2, 2023 · N487AS · Boeing 737990ER · Detection System
  > APU DET INOP. GROUNDED - YES. TROUBLESHOT IAW B737-900 FIM 26-10 TASK 801. BITE PROCEDURE INDICATED APU TAILPIPE DETECTOR FAULT. REMOVED AND REPLACED APU TAILPIPE OVERHEAT DETECTOR IAW B737-900 AMM 26-15-01.
- [SDR ASAA2023012391592](https://openairdocs.org/sdr/ASAA2023012391592.md): Fmc · faulted · Jan 19, 2023 · N487AS · Boeing 737990ER · Flight Management Computing Hardware System
  > APPROX 5 HRS INTO FLIGHT BOTH FMCS WENT BLANK AND FMC P/RST LIGHT ILLUMINATED. NO VTK OF MAP FLAGS WERE NOTICED ON EITHER NAV DISPLAYS. APPROX 1 MIN LATER. BOTH FMCS RETURNED TO NORMAL OPERATION. GROUNDED - YES. PERFORMED B737-900 FIM 34-61 TASK 807 A-E. CHECK
- [SDR ASAA2023010541434](https://openairdocs.org/sdr/ASAA2023010541434.md): Circuit Breaker · open · Jan 5, 2023 · N487AS · Boeing 737990ER · Water/Waste System Wiring
  > CREW REPORTS ALL LAVS NOT FLUSHING. GROUNDED - YES. AIRTURNBACK -- FOUND CIRCUIT BREAKER C11 P91 PANEL OPEN. (VACUUM WASTE CONT). RESET CIRCUIT BREAKER IAW B737-900AMM 20-60-05. OPS CKS NORMAL.
- [SDR ASAA2022122761237](https://openairdocs.org/sdr/ASAA2022122761237.md): Pressure Switch · intermittent · Dec 26, 2022 · N487AS · Boeing 737990ER · Aircraft Fuel Distribution System
  > #2 AFT FUEL LOW PRESSURE LIGHT DID NOT ILLUMINATE WHEN SWITCH TURNED OFF. GROUNDED - YES. PERFORMED FUEL QUANTITY BITE TEST IAW B737-900 AMM 28-41-00. NO FAULTS FOUND. PERFORMED MASTER LIGHTS TEST IAW AMM 33-18-00. #2 AFT FUEL PUMP LOW PRESSURE LIGHT ILLUMINAT
- [SDR ASAA2022121341131](https://openairdocs.org/sdr/ASAA2022121341131.md): Blade · damaged · Dec 13, 2022 · N487AS · Boeing 737990ER · Turbine Engine Air Inlet Section
  > DURING #2 ENGINE FAN LUBE ASA T.C 78471010 FOUND #15 FAN BLADE COATING LOSS ON CONCAVE SIDE PRESSURE FACE (AREA X) OUT OF LIMITS. REF B737-900 AMM 72-21-02. GROUNDED - YES. REPLACED DISCREPANT BLADE #15 & ITS PAR #3, SEC ASA L/P 60369081 FOR TEST 7 VIBRATION S
- [SDR ASAA2022100440457](https://openairdocs.org/sdr/ASAA2022100440457.md): Position Sensor · false indication · Oct 4, 2022 · N487AS · Boeing 737990ER · Autopilot System
  > LAND VERIFY FAILED. MSG 22-11145 CHANNEL A&B AILERON POSITION SENSOR. GROUNDED - YES. ACCOMPLISHED AILERON POSITION SENSOR TEST REF B737-900 AMM 22-11-29 TEST PASS FOR CHANNELS A & B ACCOMPLISH AND VERIFY TEST REF AMM 22-11-00 TEST POSITIVE NO HISTORY PAST 30
- [SDR ASAA2022092540091](https://openairdocs.org/sdr/ASAA2022092540091.md): Selector · inoperative · Sep 25, 2022 · N487AS · Boeing 737990ER · Autopilot System
  > V/S SELECTOR APPEARS INOPERATIVE. RECYCLED FLIGHT DIRECTOR SWITCHES WITH NO AFFECT. GROUNDED - YES.. REMOVED AND REPLACED MCP REF B737-900 AMM 22-11-34 MCP INSTALLATION TEST CHECKED GOOD.
- [SDR ASAA2022082039591](https://openairdocs.org/sdr/ASAA2022082039591.md): None · none · Aug 20, 2022 · N487AS · Boeing 737 · Autopilot System
  > AP/AT ANN TEST SWITCH 1 & 2 - NUT MISSING ON TEST SWITCH. GROUNDED - YES. REMOVED & REPLACED ANNUNCIATOR FLIGHT STATUS PANEL PER B737-900 AMM 22-11-32.
- [SDR ASAA2022072439163](https://openairdocs.org/sdr/ASAA2022072439163.md): Panel · faulty · Jul 24, 2022 · N487AS · Boeing 737990ER · Autopilot System
  > MODE CONTROL PANEL STUCK. GROUNDED - YES. REMOVED AND REPLACED MODE CONTROL PANEL PER B737-900 AMM 22-11-34. OPS CHECK GOOD.
- [SDR ASAA2022072339162](https://openairdocs.org/sdr/ASAA2022072339162.md): Indicator · stuck · Jul 23, 2022 · N487AS · Boeing 737990ER · Autopilot System
  > AIRSPEED WINDOW STUCK AT 100 AND ALTITUDE PRESELECT WINDOW WILL NOT REMAIN AT SELECTED ALTITUDE KEEPS JUMPING TO 50000. GROUNDED - YES. ACCOMPLISHED DIGITAL FLIGHT CONTROL SYSTEM OPERATIONAL TEST IN REF TO B737-900 AMM 22-11-00-740-801. OPS CHECKS NORMAL ACCOM
- [SDR ASAA2022071439149](https://openairdocs.org/sdr/ASAA2022071439149.md): Control Valve · faulted · Jul 14, 2022 · N487AS · Boeing 737990ER · Cabin Cooling System
  > AFTER ENGINE START + MC RECALL, R PACK LIGHT WOULD NOT EXTINGUISH. GROUNDED - YES. REMOVED AND REPLACED TEMP CONTROL VALVE REF. B737-900 AMM 21-51-10.
- [SDR ASAA2022071439141](https://openairdocs.org/sdr/ASAA2022071439141.md): Control Valve · faulted · Jul 14, 2022 · N487AS · Boeing 737990ER · Cabin Cooling System
  > AFTER ENGINE START + MC RECALL, R PACK LIGHT WOULD NOT EXTINGUISH. RIGHT PACK ILLUMINATED ON RECALL AT TOP OF DESCENT, LIGHT EXTINGUISHED WITH MASTER CAUTION RESET. REF ASA L/P 60493842. GROUNDED - YES. REMOVED AND REPLACED TEMP CONTROL VALVE REF. B737-900 A
- [SDR ASAA2022070438975](https://openairdocs.org/sdr/ASAA2022070438975.md): Actuator · faulty · Jul 4, 2022 · N487AS · Boeing 737990ER · Cabin Cooling System
  > RIGHT "RAM DOOR FULL OPEN' LIGHT ILLUMINATED INTERMITENTLY THROUGHOUT CLIMB AND CRUSE. GROUNDED - YES. REMOVED AND REPLACED RIGHT RAM AIR EXHAUST ACTUATOR REF B737-900 AMM 21-51-27. OPS CHECK GOOD.
- [SDR ASAA2022070338953](https://openairdocs.org/sdr/ASAA2022070338953.md): Actuator · faulty · Jul 3, 2022 · N487AS · Boeing 737990ER · Cabin Cooling System
  > RIGHT PACK LIGHT ON RECALL. GROUNDED - YES. (RESOLVED ON W/O: 1916055 TASKCARD: N/R-00005) REMOVED AND REPLACED RAM AIR EXHAUST ACTUATOR REF AMM 21-51-27. OPS CHECK GOOD. THIS CLEARS MEL 21-328. SEAMC DARREN NOTIFIED. PLACARDS REMOVED.
- [SDR ASAA2022070139089](https://openairdocs.org/sdr/ASAA2022070139089.md): Shutoff Valve · leaking · Jul 1, 2022 · N487AS · Boeing 737990ER · Pneumatic Distribution System
  > RED BOX ON ENG #1 EGT DISPLAY. GROUNDED - YES. FOLLOWED B737-900 FIM 71-06 T ASK 805 STEP (F)(2). ACCOMPLISHED EEC BITE ON #1 ENGINE REF FIM 73-00 TASK 801. NO RECORDED ENG OR EGT FAULTS. EGT PROBES S1-S4 TEMPS ALL WITHIN ACCEPTABLE LIMITS. ACCOMPLISHED FIM 71

Next page: https://openairdocs.org/aircraft/N487AS/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 = 'N487AS' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N487AS/reports

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