# Service difficulty reports: N409AS

A list on [N409AS](https://openairdocs.org/aircraft/N409AS.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 6 · 276 reports

- [SDR ASAA2026061566845](https://openairdocs.org/sdr/ASAA2026061566845.md): Battery Pack · faulted · Jun 15, 2026 · N409AS · Boeing 737990ER · Emergency Lighting
  > EMERGENCY LIGHTS OUT AT, ROWS LEFT ROW 27 AND RIGHT ROWS 9,13, 25 AND 29. GROUNDED - YES. REMOVED AND REPLACED BATTERIES FOR EMERGENCY LIGHTS ON ROWS 9,13,25,27, AND 29. IAW AMM 33-51-06-960-805. OPS CHECKED GOOD.
- [SDR ASAA2026052766546](https://openairdocs.org/sdr/ASAA2026052766546.md): Baffle · cracked · May 27, 2026 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > RIGHT BAFFLE CLIP BS 500A IS CRACKED AFT SIDE OF FRAME. GROUNDED - YES. REMOVED AND RELACED RT BAFFLE CLIP BS 500A, AFT SIDE OF FRAME IAW SRM 51-40-02-0G-0.
- [SDR ASAA2026052366544](https://openairdocs.org/sdr/ASAA2026052366544.md): Transition Panel · cracked · May 23, 2026 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > FWD CARGO RT TRANSITION PANEL BS 500B TO 500H HAS MULTIPLE CRACKED AREAS. GROUNDED - YES. REMOVED AND REPLACED RT TRANSITION PANEL AND SPLICE BS 500B TO 500H IAW SRM 53-00-53-2R-6.
- [SDR ASAA2025020655828](https://openairdocs.org/sdr/ASAA2025020655828.md): Sign · missing · Feb 6, 2025 · N409AS · Boeing 737990ER · Emergency Lighting
  > ENROUTE- F/A REPORTS EXIT SIGN NEAR GARBAGE BIN AT L2 DOOR IS MISSING. GROUNDED - YES. FOUND LENS COVER FOR MISSING EXIT SIGN AT L2 DOOR, INSTALLED LENS COVER REF IPC 33-51-01. EXIT SIGN OPS CHECK GOOD.
- [SDR ASAA2024072551936](https://openairdocs.org/sdr/ASAA2024072551936.md): Battery · inoperative · Jul 25, 2024 · N409AS · Boeing 737990ER · Emergency Lighting
  > ACCOMPLISH REPAIRS FOR THE DISCREPANCIES LISTED ON THE ATTACHED AAR MIG-85A (S) FOR ASA WALK ITEMS. (REF MULTI STEP 8 - CABIN EMERGENCY CEILING LIGHTS INOP AT THE FOLLOWING LOCATIONS: 17FED, 19FED, AND 23FED) GROUNDED - YES. ALL DISCREPANCIES LISTED ON ATTACHE
- [SDR ASAA2024062650624](https://openairdocs.org/sdr/ASAA2024062650624.md): Intercostal · corroded · Jun 26, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFTER REMOVAL OF RH AFT CARGO TRANSITION PANEL FOR INTERCOSTAL CORRODED AT STA 747 TO 767, MARKED. GROUNDED - YES. REMOVED AND REPLACED INTERCOSTAL IAW B737-900ER SRM 51-40-02-0G-0W-1" O-.032 R-.028 L-4" D-.004.
- [SDR ASAA2024061951131](https://openairdocs.org/sdr/ASAA2024061951131.md): Floorbeam · corroded · Jun 19, 2024 · N409AS · Boeing 737990ER · Fuselage Main, Floor Beam
  > AFT WET AREA STA 1016 FLOOR BEAM HAS CORROSION AT RBL 50. GROUNDED - YES. REPAIRS MADE TO FLOOR BEAM 1016 AT RBL 50 IAW ASA900ER-53EA-27183 REV 00W-1" O-.150 R-.115 L-2" D-.035.
- [SDR ASAA2024061951122](https://openairdocs.org/sdr/ASAA2024061951122.md): Floorbeam · corroded · Jun 19, 2024 · N409AS · Boeing 737990ER · Fuselage Main, Floor Beam
  > AFT WET AREA STA 986 FLOOR BEAM HAS CORROSION RBL 30 TO RBL 50. GROUNDED - YES. REPAIRED STA 986 FLOOR BEAM IAW 900ER-53EA-27211 REV 00 W 1 O.150 R.099 L 1 D.051.
- [SDR ASAA2024061950835](https://openairdocs.org/sdr/ASAA2024061950835.md): Floor Support · corroded · Jun 19, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT WET AREA FLOOR SUPPORT RBL 50 STA 947 TO 967 HAS CORROSION. GROUNDED - YES. REMOVED AND REPLACED FLOOR SUPPORT AT RBL 50 FROM STA 947 TO 967 IAW BOEING 737-900 SRM 51-40-02-0G-0W-2" O-.085" R-.075" L-2" D-.010.
- [SDR ASAA2024061950629](https://openairdocs.org/sdr/ASAA2024061950629.md): Floor Support · corroded · Jun 19, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT WET AREA FLOOR SUPPORT RBL 20 STA 967 TO 986 HAS CORROSION. GROUNDED - YES. REMOVED AND REPLACED FOOR SUPPORT IAW B737-900ER SRM 51-40-02-0G-0W-1.5" O-.075" R-.058" L-1.5" D-.017".
- [SDR ASAA2024061950628](https://openairdocs.org/sdr/ASAA2024061950628.md): Floor Support · corroded · Jun 19, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT WET AREA FLOOR SUPPORT RBL 20 STA 947 TO 967 HAS CORROSION. GROUNDED - YES. REMOVED AND REPLACED INTERCOSTAL IAW B737-900ER SRM 51-40-02-0G-0W=3" O=.075 R=.012 L=4 D=.063.
- [SDR ASAA2024061950627](https://openairdocs.org/sdr/ASAA2024061950627.md): Transition Panel · corroded · Jun 19, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > L/H TRANSITION PANEL STA 500H TO 500L IS CORRODED. GROUNDED - YES. L/H TRANSITION PNL STA 500H TO 500L REPAIRED IAW B737-900ER SRM 53-00-53-2R-6W=2" O=.040" R=.035" L=10" D=.005".
- [SDR ASAA2024061950626](https://openairdocs.org/sdr/ASAA2024061950626.md): Transition Panel · corroded · Jun 19, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > R/H TRANSITION PANEL STA 500H TO 500L IS CORRODED. GROUNDED - YES. R/H TRANSITION PNL STA 500H TO 500L REPAIRED IAW B737-900ER SRM 53-00-53-2R-6W.8 O.040 R.032 L 1.8 D.008.
- [SDR ASAA2024061950623](https://openairdocs.org/sdr/ASAA2024061950623.md): Floor Support · cracked · Jun 19, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > FWD WET AREA INTERCOSTAL CRACKED AT RBL 30 STA 312 TO 328. GROUNDED - YES. REMOVED AND REPLAED INTERCOSTAL IAW B737-900 ER SRM 51-40-05-0G-0 AND SRM 51-40-02-0G-0.
- [SDR ASAA2024061850836](https://openairdocs.org/sdr/ASAA2024061850836.md): Cargo Track · cracked · Jun 18, 2024 · N409AS · Boeing 737990ER · Fuselage, Seat/Cargo Attach Fittings
  > AFT CARGO R/H TRACK IS CRACKED AT STA 727H, 727I, 727J AND 727K. GROUNDED - YES. REMOVED AND REPLACED CARGO TRACK IAW B737-900ER SRM 51-40-02-0G-0, REPAIRED CARGO TRACK SECTION FROM STA 727G+12 TO 727 I +6 IAW B737-900ER SRM 53-00-53-2R-3.
- [SDR ASAA2024061850758](https://openairdocs.org/sdr/ASAA2024061850758.md): Sidewall Support · corroded · Jun 18, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO SIDEWALL SUPPORT AT STA 727I RBL 26 IS CORRODED. GROUNDED - YES. REMOVED DAMAGE SIDEWALL SUPPORT FOUND TO BE OUT LIMITS IAW B737-900ER SRM 53-00-07-1A-1 REMOVED AND REPLACED SIDEWALL SUPPORT IAW B737-900ER SRM 53-00-07-2R-4W:1" O:.063" R:.032" L: 2
- [SDR ASAA2024061850756](https://openairdocs.org/sdr/ASAA2024061850756.md): Cargo Track · cracked · Jun 18, 2024 · N409AS · Boeing 737990ER · Fuselage, Seat/Cargo Attach Fittings
  > AFT CARGO L/H TRACK IS CRACKED AT STA 727I. GROUNDED - YES. REPAIRED CARGO TRACK IAW B737-900ER SRM 53-00-53-2R-3.
- [SDR ASAA2024061850755](https://openairdocs.org/sdr/ASAA2024061850755.md): Strap · corroded · Jun 18, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO STRAP RBL 24 STA 807 TO 827 HAS CORROSION. GROUNDED - YES. REMOVED DAMAGE AFT CARGO STRAP FOUND TO BE OUT LIMITS IAW B737-900ER SRM 53-60-15-1A-1, REMOVED AND REPLACED AFT CARGO STRAP IAW B737-900ER SRM 51-40-02-0G-0W: 2" O:.080 R:.068" L: 1" D:.0
- [SDR ASAA2024061850688](https://openairdocs.org/sdr/ASAA2024061850688.md): Transition Panel · corroded · Jun 18, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO R/H TRANSITION AFT OF DOOR HAS AREAS OF CORROSION GROUNDED - YES. REMOVED DAMAGE TRANSITION PANEL FOUND TO BE OUT LIMITS IAW SRM 53-00-53-1A-2, REMOVED AND REPLACED TRANSITION PANEL IAW SRM 53-00-53-2R-5 W:1" O:.040" R:.032 L:1" D:.008
- [SDR ASAA2024061850631](https://openairdocs.org/sdr/ASAA2024061850631.md): Shield · corroded · Jun 18, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO FWD SHIELD HAS AREAS OF CORROSION. GROUNDED - YES. REMOVED DAMAGE, 100% MATERIAL LOSS, FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-60-15-1A-1, REMOVED AND REPLACED SHIELD AT AFT CARGO FWD SIDE, IAW B737-900ER SRM 51-40-02-G-0W 1.5 O.050 R.000 L
- [SDR ASAA2024061850630](https://openairdocs.org/sdr/ASAA2024061850630.md): Transition Panel · corroded · Jun 18, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO R/H TRANSITION HAS AREAS OF CORROSION STA 737A TO STA 767. GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2, REPAIRED TRANSITION IAW B737-900ER SRM 53-00-53-2R-5W: 1" O:.040" R: 0 L: 1" D:.040".
- [SDR ASAA2024061850622](https://openairdocs.org/sdr/ASAA2024061850622.md): Cargo Track · corroded · Jun 18, 2024 · N409AS · Boeing 737990ER · Fuselage, Seat/Cargo Attach Fittings
  > AFT CARGO R/H TRACK HAS CORROSION AT STA 773. GROUNDED - YES. REMOVED DAMACE, FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2 FOR REPAIR ACCOMPLISHED TO CARGO TRACK SEE MIG-6 OK380387W: 1 O:.070 R: 0 L: 4 D:.070.
- [SDR ASAA2024061850621](https://openairdocs.org/sdr/ASAA2024061850621.md): Angle · corroded · Jun 18, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO L/H TRANSITION HAS AREAS OF CORROSION STA 727A TO 847. GROUNDED - YES. REMOVED CORROSION FOUND OUT LIMITS IAW B737-900ER SRM 53-00-53-1A-2 & FABRICATED TRANSITION IAW B737-900ER SRM 53-00-53-2R-5W=1" O=.040" R=.023" L=1" D=.017".
- [SDR ASAA2024061750754](https://openairdocs.org/sdr/ASAA2024061750754.md): Web · corroded · Jun 17, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > FWD CARGO DOOR CUT-OUT LOWER WEB CELL UPPER SKIN HAS CORROSION IN MULTIPLE SPOTS (MARKED). GROUNDED - YES. REMOVED DAMAGE FOUND TO BE OUT OF LIMITS. REMOVED, LOCATED, DRILLED AND REPLACED WEB IAW B737-900ER SRM 51-40-02-0G-0 AND 51-40-05-0G-0W: 2" O:.045 R:.
- [SDR ASAA2024061750625](https://openairdocs.org/sdr/ASAA2024061750625.md): Web · corroded · Jun 17, 2024 · N409AS · Boeing 737990ER · Fuselage Miscellaneous Structure
  > AFT CARGO DOOR CUT-OUT LOWER WEB CORRODED (MARKED). GROUNDED - YES. REMOVED DAMAGE, MATERIAL FOUN TO BE OUT OF LIMITS, REMOVED AND REPLACED LOWER WEB FROM AFT CARGO DOOR CUT-OUT IAW B737-900ER SRM 53-60-15-1A-1, 51-40-02-0G-0W 1".5 O.056 R.042 L 2" D.008.
- [SDR ASAA2024061451273](https://openairdocs.org/sdr/ASAA2024061451273.md): Battery Pack · no test · Jun 14, 2024 · N409AS · Boeing 737990ER · Emergency Lighting
  > RIGHT OVERWING EXIT EMERGENCY LIGHT, EXIT ID AT LT AND RT AFT OVER HATCH FAILED BATTERY CHECK. GROUNDED - YES. REMOVED AND REPLACED AND OPS CHECK GOOD FOR EMERGENCY LIGHT BATTERY IAW B737-900 AMM 33-51-06-960-805. (S/N 219083)
- [SDR ASAA2024041549064](https://openairdocs.org/sdr/ASAA2024041549064.md): Power Supply · inoperative · Apr 15, 2024 · N409AS · Boeing 737990ER · Emergency Lighting
  > WHILE PERFORMING T/C 78233008, FOUND 3 SECTIONS OF THE LH SIDE EMERGENCY EXIT LIGHTS INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK IN AFT GALLEY CEILING PANEL, AND BATTERY PACKS IN LH FOOT PANELS LOCATED 1 WINDOW FWD OF FWD OVERWING EXIT DOOR AND 11
- [SDR ASAA2023111246163](https://openairdocs.org/sdr/ASAA2023111246163.md): Control Valve · faulty · Nov 12, 2023 · N409AS · Boeing 737990ER · Cabin Cooling System
  > NITROGEN GENERATION SYSTEM IS IN DEGRADED CONDITION. GROUNDED - YES. R/R LEFT FLOW CONTROL AND SHUTOFF VALVE IAW AMM TASK 21-51-01. OPS CHECK GOOD. NGS LIGHT SHOWS GREEN. NO LEAK. PACK/ZONE TEMP CONTROLLER FAULTS. SEAMC ANDY NOTIFIED. PLACARD REMOVED.
- [SDR ASAA2023102245753](https://openairdocs.org/sdr/ASAA2023102245753.md): Unknown · unknown · Oct 22, 2023 · N409AS · Boeing 737990ER · Cabin Temperature Control System
  > ZONE TEMP CONT CAB ILLUMINATED. EXT ON RESET. GROUNDED - YES. PERFORMED B737-900 FIM 21-62 TASK 801. OPS CK GOOD.
- [SDR ASAA2023101245641](https://openairdocs.org/sdr/ASAA2023101245641.md): Unknown · unknown · Oct 12, 2023 · N409AS · Boeing 737990ER · Alternator-Generator Drive
  > #1 DRIVE LIGHT NOT ILLUMINATED WITH ENGINE SHUT DOWN. LIGHT ILLUMINATES DURING LIGHT TEST. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023100545499](https://openairdocs.org/sdr/ASAA2023100545499.md): Unknown · unknown · Oct 5, 2023 · N409AS · Boeing 737990ER · Electrical Power System
  > ENGINE #1 DRIVE LIGHT NOT ILLUMINATED ON GROUND. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023092745357](https://openairdocs.org/sdr/ASAA2023092745357.md): Unknown · unknown · Sep 27, 2023 · N409AS · Boeing 737990ER · Electrical Power System
  > # 1 "DRIVE" LIGHT NOT ILLUMINATED ON GROUND. BULBS TEST GOOD. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023092345290](https://openairdocs.org/sdr/ASAA2023092345290.md): Acm · faulty · Sep 23, 2023 · N409AS · Boeing 737990ER · Cabin Cooling System
  > FMC L&R DISCRETES SHOW RIGHT PACK ON EVEN WHEN SWITCHED OFF. GROUNDED - YES. REMOVED R/H PACK FLOW CONTROL VALVE, REMOVED R/H ACM REF AMM 21-51-04. REPLACED R/H PACK FLOW CONTROL VALVE PER AMM 21-51-01-400-802-002 PARA 5H-G(13). DOWN TO OPS CHECKS, INSTALLED N
- [SDR ASAA2023092245332](https://openairdocs.org/sdr/ASAA2023092245332.md): Engine · malfunctioned · Sep 22, 2023 · N409AS · Boeing 737990ER · Fuel Controlling System
  > #2 EGT 83 DEG HIGHER THAN #1 ENGINE. #2 SLOW TO ACCELERATE TO 40. GROUNDED - YES. #2 ENGINE REPLACED ON A/C W/O 1970733 REF TC'S 78471000 + 78471001.
- [SDR ASAA2023091945207](https://openairdocs.org/sdr/ASAA2023091945207.md): Unknown · unknown · Sep 19, 2023 · N409AS · Boeing 737990ER · Engine Indicating System
  > DURING ENG 2 BITE TEST FOUND MX MESSAGE # 77-20872"THE TOP LEFT EGT SIGNAL IS OUT OF RANGE." ECONOMIC FAULT. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023091745304](https://openairdocs.org/sdr/ASAA2023091745304.md): Unknown · unknown · Sep 17, 2023 · N409AS · Boeing 737990ER · Fuel Controlling System
  > REF TSR714980, DURING COMPLETION OF WIRE HARNESS INSPECTION, FOUND BLACK SHEATHING WORN APPROX 4 IN FWD OF DP901 ON THE #2 ENG. NO DAMAGE NOTED TO METAL BRAID. GROUNDED - YES. ON THE #2 ENG, PERFORMED ENGINE WIRING HARNESS REPAIR OF THE J9 HARNESS, 4 IN FWD OF
- [SDR ASAA2023091745220](https://openairdocs.org/sdr/ASAA2023091745220.md): Unknown · unknown · Sep 17, 2023 · N409AS · Boeing 737990ER · Engine Cooling System
  > REF LP 60608120. AFTER PERFORMING IDLE RUN TEST FOR STARTER INSTALLATION AND CLOSING FAN COWLS FOUND STEADY FUEL DRIPPING FROM DRAIN AT BOTTOM OF COWLING #2 ENGINE. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023091745169](https://openairdocs.org/sdr/ASAA2023091745169.md): Starter · failed · Sep 17, 2023 · N409AS · Boeing 737990ER · Engine Starter
  > #2 ENGINE NO ROTATION. GROUNDED - YES. INITIATED MIG-2C S/N: 40-0054352. K. TABAKCI ASA 47439 09/15/2023 REMOVED AND INSTALLED #2 ENGINE STARTER REF AMM 80-11-01-000-801-F00, AMM 80-11-01-400-801-F00 3, G. NEEDS OPS CHECK. 41225 09/16/2023. ACCOMPLISHED FIM TA
- [SDR ASAA2023091645179](https://openairdocs.org/sdr/ASAA2023091645179.md): Probe · faulted · Sep 16, 2023 · N409AS · Boeing 737990ER · Engine Temperature Indicating System
  > RED BOX ON #2 ENGINE EGT GAUGE UPON SHUTDOWN. NO OTHER ABNORMAL INDICATIONS THROUGHOUT FLIGHT. (REF TSR714980) GROUNDED - YES. (RESOLVED ON W/O: 1969938 TASKCARD: N/R-00001) PERFORMED ENG EXCEEDANCE PAGE CHK PER AMM 71-00-00-740-801-F00. NO EXCEEDANCES FOUND.
- [SDR ASAA2023091645184](https://openairdocs.org/sdr/ASAA2023091645184.md): Unknown · unknown · Sep 16, 2023 · N409AS · Boeing 737990ER · Fuel Controlling System
  > ON GROUND. #2 ENGINE SIGNIFICANTLY SLOWER FOR N1 TO SPOOL UP AS WELL AS MUCH HIGHER EGT AND FUEL FLOW. ON THE T/O ROLL IN DFW EGT #2 WAS AROUND 920 AT PEAK TEMP BEFORE POWER REDUCTION. ENGINE OPERATION AND PARAMETERS WERE NORMAL IN FLIGHT. AGAIN ON THE GROND I
- [SDR ASAA2023091145079](https://openairdocs.org/sdr/ASAA2023091145079.md): Regulator · malfunctioned · Sep 11, 2023 · N409AS · Boeing 737990ER · Engine Bleed Air System
  > AFTER LANDING AND ENGINES AT IDLE. RH DUCT PRESSURE WAS AT 6 PSI, LH DUCT PRESSURE WAS AT 18PSI. AFTER SWITCHING TO APU BLEED AIR BOTH PRESSURES ROSE TO 05 PSI. GROUNDED - YES. (RESOLVED ON W/O: 1969307 TASKCARD: N/R-00001) FOUND #2 HSR FAILD, REPLACED HSR RE
- [SDR ASAA2023082644800](https://openairdocs.org/sdr/ASAA2023082644800.md): Unknown · unknown · Aug 26, 2023 · N409AS · Boeing 737990ER · Engine Temperature Indicating System
  > PERFORMED ENGINE #2 BITE TEST FOUND FAULT CODE 77-20872 "TOP LEFT EFT SIGNAL (T495S4) IS OUT OF RANGE." ON FLIGHT LEG 0 AND 1. ECONOMIC FAULT. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023081744653](https://openairdocs.org/sdr/ASAA2023081744653.md): Unknown · unknown · Aug 17, 2023 · N409AS · Boeing 737990ER · HF Communications System
  > FVR #1 HF RADIO CHECKS GOOD. GOOD RECEPTION BUT UNABLE TO TRANSMIT ON HF 2. GROUNDED - YES. ON DEFERRAL
- [SDR ASAA2023081544616](https://openairdocs.org/sdr/ASAA2023081544616.md): Module · clogged · Aug 15, 2023 · N409AS · Boeing 737990ER · APU Oil System
  > DURING APU GVI REFER T/C 78349007 STEP D FOUND OIL FILTER INDICATOR EXTENDED. GROUNDED - YES. REMOVED AND REPLACED LUBE FILTER ELEMENT ON APU REFER AMM 49-91-13. OPS CK GOOD, NO LEAKS NOTED OR DEBRIS ON MAGNETIC DRAIN PLUG. APU BITE CHECK NO FAULTS FOUND. SEAM
- [SDR ASAA2023080744459](https://openairdocs.org/sdr/ASAA2023080744459.md): Unknown · unknown · Aug 7, 2023 · N409AS · Boeing 737990ER · Flight Management Computing Hardware System
  > FMC DISAGREE - GROUNDED - YES. PERFORMED QRH LIGHT WENT OUT.
- [SDR ASAA2023080344396](https://openairdocs.org/sdr/ASAA2023080344396.md): Unknown · unknown · Aug 3, 2023 · N409AS · Boeing 737990ER · HF Communications System
  > TESTED TRANSMISSION OF BOTH HF1 AND HF2 AS DIRECTED BY SEAMC. BOTH RADIOS FAILED TO MAKE CONTACT WITH SFO RADIO. 5 DIFFERENT FREQS WERE ATTEMPTED. FREQS WERE ASSIGNED BY SFO RADIO. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023072944294](https://openairdocs.org/sdr/ASAA2023072944294.md): Unknown · unknown · Jul 29, 2023 · N409AS · Boeing 737990ER · HF Communications System
  > HF #2 DOES NOT TRANSMIT. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023070243835](https://openairdocs.org/sdr/ASAA2023070243835.md): Unknown · unknown · Jul 2, 2023 · N409AS · Boeing 737990ER · Windshield/Door Rain/Ice Removal
  > LEFT FWD WINDOW OVER HEAT LIGHT IS ON. GROUNDED - YES. PERFORMED B737-900 FIM 30-41 TASK 801, FOUND C/B "WINDOW HEAT POWER LEFT FRONT" (B9) ON P6-11 PANEL OPEN. GVI'D C/B, NO DEFECTS NOTED AT THIS TIME AND RESET, REF B737-900 AMM 20-60-01. PERFORMED BITE ON LE
- [SDR ASAA2023060643538](https://openairdocs.org/sdr/ASAA2023060643538.md): Actuator · leaking · Jun 6, 2023 · N409AS · Boeing 737990ER · Compressor Bleed Control
  > WHILE PERFORMING MAINTENANCE ENGINE RUN ON #2 ENGINE, OBSERVED FUEL LEAKING FROM RIGHT VSV DRAIN (9 DROPS PER MINUTE). GROUNDED - YES. REMOVED/REPLACED #2 ENG R/H VSV ACTUATOR PER B737-900 AMM 75-31-01 OPS & LEAK CK GOOD.
- [SDR ASAA2023060643537](https://openairdocs.org/sdr/ASAA2023060643537.md): Valve · leaking · Jun 6, 2023 · N409AS · Boeing 737990ER · Engine Bleed Air System
  > WHILE PERFORMING MAINTENANCE ENGINE RUN ON #2 ENGINE, OBSERVED FUEL LEAKING FROM HPTACC DRAIN LINE (6 DROPS PER MINUTE). GROUNDED - YES. REMOVED HPTACC VALVE IAW B737-900 AMM 75-21-01 HPTACC SET IN PLACE WITH ALL NEW SEALS REF AMM 75-21-01-408-801-F00.

Next page: https://openairdocs.org/aircraft/N409AS/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 = 'N409AS' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N409AS/reports

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