# Service difficulty reports: N28478

A list on [N28478](https://openairdocs.org/aircraft/N28478.md).

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

- [SDR CALA2026092919978](https://openairdocs.org/sdr/CALA2026092919978.md): Light Sys · intermittent · Sep 26, 2026 · N28478 · Boeing 737924ER · Emergency Lighting
  > EMERGENCY EXIT LIGHTING & SIGNS ABOVE SEAT 7 ABC INTERMITTENTLY FLASHING. ALL EMERGENCY EXIT LIGHTS AND SIGNS OPERATE NORMALLY. NO FLICKERING OR FLASHING NOTED.
- [SDR CALA2026071217722](https://openairdocs.org/sdr/CALA2026071217722.md): Flap System · faulted · Jul 9, 2026 · N28478 · Boeing 737924ER · Trailing Edge Flap Control System
  > ON APPCH GEAR DOWN F15 SLCTD. IND WAS 5 ON THE GAUGE. AFTER GO ARNDWORKED NRML ON RETURN PERFORMED FSEU INBD FAULT AND EXISTING FAULTS TEST, TASK 27-51-00-740-801. NO FAULTS INBD AND ON GND. NO PREVIOUS HISTORY. RAN FLAPS COUPLE OF TIMES AND INSPECTED THEM,
- [SDR CALA2026061917189](https://openairdocs.org/sdr/CALA2026061917189.md): Engine · odor · Jun 18, 2026 · N28478 · Boeing 737924ER · Engine (Turbine/Turboprop)
  > SMELL ON TAKEOFF/CLIMB FROM AIR SYSTEM. STRONG- EST IN FWD CABIN. CREW FELT TEMP MILD EFFECT FOUND HISTORY ON PRIOR OVERNIGHT MAINTENANCE OF #1 ENGINE COMPRESSOR WASH REF L/P 9275012. SLIGHT OIL SMELL REMAINED IN CABIN AND FLIGHT DECK. PERFORMED FIM TASK 05-5
- [SDR CALA2026031614585](https://openairdocs.org/sdr/CALA2026031614585.md): Wire · shorted · Mar 13, 2026 · N28478 · Boeing 737924ER · Light System Wiring
  > ALL OF FIRST-CLASS SEAT EMERGENCY LIGHTS INOPERATIVE. R & R F2 5A FUSE IN FWD CHARGER. FIRST CLASS SEAT EMER LIGHT ILLUMINATED FOR 1 SEC & WENT OUT. TRIED ANOTHER FUSE, FUSE BLEW AGAIN. IAW AMM 33-51-06-960-804. SWAPPED AFT CHARGER WITH FWD CHARGER, SAME RE
- [SDR CALA2025100609607](https://openairdocs.org/sdr/CALA2025100609607.md): Smoke Detector · false activation · Oct 4, 2025 · N28478 · Boeing 737924ER · Smoke Detection
  > LAVATORY E SMOKE ALARM SOUNDING AT GATE. NO SMOKE OR FUMES OBSERVED. CONFIRMED WITH FLIGHT CREW NO PRESENCE OF SMOKE. PERFORMED OPSCHECK OF LAV E SMOKE DECET. OPS CHECK GOOD AT THIS TIME. OK TO CONTINUE AT THIS TIME
- [SDR CALA2025092409195](https://openairdocs.org/sdr/CALA2025092409195.md): Light · broken · Sep 21, 2025 · N28478 · Boeing 737924ER · Emergency Lighting
  > EMERGNCY EXIT PLACARD LEFT N RIGHT CHIP REMOVED AND REPLACED RH/LH OVERWING EMERGENCY EXIT LENS COVERS REF CONFIGURATION DRAWING NO. 3351DD15945. PRECAUTIONARY PERFORMED EMERGENCY LIGHTS OPS CHECK REF AMM 33-51-00-710-801, OPS CHECK GOOD AT THIS TIME.PARTS USE
- [SDR CALA2025080507317](https://openairdocs.org/sdr/CALA2025080507317.md): Screw · loose · Aug 1, 2025 · N28478 · Boeing 737924ER · Escape Slide
  > FLIGHT ATT SAYS DOOR 2L AFT SCREW HOLDING SLIDE DOOR IS PROTRUDI NG. INSPECTED HARDWARE STACK UP AND MATCHES AMM 25-66-01-400-803. VERIFIED HARDWARE IS TORQUED. OK FOR SVC.
- [SDR CALA2025071106457](https://openairdocs.org/sdr/CALA2025071106457.md): Light · broken · Jul 10, 2025 · N28478 · Boeing 737924ER · Emergency Lighting
  > ECONOMY PASSENGER SEAT EMERGENCY PATH LIGHTING (EPL) ROW 8 L/H, EMERGENCY PATH WHITE LIGHT BROKEN. REPLACED SEAT LIGHT AT ROW 8. LIGHT OPS CHECK GOOD IAW AMM 33-51-11.
- [SDR CALA2025052704969](https://openairdocs.org/sdr/CALA2025052704969.md): Support Beam · damaged · May 23, 2025 · N28478 · Boeing 737924ER · Fuselage Miscellaneous Structure
  > WHILE REMOVING STRIKE PLATE COMMON TO FWD O/B LATCH ON DOOR 192DR, DAMAGE WAS FOUND ON FRAME LOCATION UNDER STRIKE PLATE. DAMAGE AREA ON LOWER CHORD OF BEAM AT PANEL 192DR FWD OUTBOARD LATCH STRIKER WAS REPAIRED I/R/W SRM 57-10-13-2R-3 REPAIR 3, REFERENCE BAM
- [SDR CALA2024122601663](https://openairdocs.org/sdr/CALA2024122601663.md): Idg · faulted · Dec 25, 2024 · N28478 · Boeing 737924ER · AC Generator-Alternator
  > RIGHT ENGINE DRIVE LIGHT ILLUMINATED ON TAKEOFF ROLL/ RTO WAS IN ITIATED RIGHT ENGINE IDG COMPLETELY OUT OF OIL UPON RETURNING TO GATE, WITH OIL DRIPPING FROM #2 ENGINE. CREW REPORTED IDG WAS NEVER DISCONNECTED, THEY SHUT DOWN NUMBER TWO ENGINE INSTEAD. IDG WA
- [SDR CALA2024112001217](https://openairdocs.org/sdr/CALA2024112001217.md): Light · malfunctioned · Nov 18, 2024 · N28478 · Boeing 737924ER · Emergency Lighting
  > EMERGENCY SLIDE/OVERWING LIGHT DOES NOT GO OFF RIGHT PERFORMED PHASE 2 DOWNLOAD FROM ACP TO LRU PER AMM REF. 23-42-03-470-801. PERFORMED OPERATIONAL CHECKS ON OWE LIGHTS AS WELL AS EMERGENCY LIGHTS PER AMM REF. 33-51-00-710-801. LIGHTS OPERATION NORMAL.
- [SDR CALA2024060401687](https://openairdocs.org/sdr/CALA2024060401687.md): Control Panel · malfunctioned · May 31, 2024 · N28478 · Boeing 737924ER · Fire Detection
  > ENG OVHT 2 INDICATION ON TAKEOFF PERFORMED BITE ON APU/FIRE DECTECTION CONTROL MODULE FIM 26-10 TASK 801 NO FAULTS, CK OK. REF AMM TASK 26-11-00-00-730-891 CHECK ENG FIRE DECTION LOOP RESISTANCE ALL 4 STEPS CK OK WITH READING OF 865 OHMS REPLACED UPPER FAN FIR
- [SDR CALA2024042301200](https://openairdocs.org/sdr/CALA2024042301200.md): Actuator · inoperative · Apr 22, 2024 · N28478 · Boeing 737924ER · Drag Control Actuator
  > REJECTED TAKEOFF DUE SPEEDBRAKE DO NOT ARM LIGHT ON AT 95KTS NO TAKEOFF WARNING HORN PERFORMED FIM 32-42 TASK 801, 27-62 TASK 801 AND FIM 27-62 TASK ILLUMINATE. THIS IS A 2ND WRITE UP. REF LOG 7615172. REQUIRES SCHEDULING. REQUESTING MEL 2707F. 802, NO FAULTS
- [SDR CALA2024042501237](https://openairdocs.org/sdr/CALA2024042501237.md): Handle · not seated · Apr 19, 2024 · N28478 · Boeing 737924ER · Passenger/Crew Doors
  > REJECTED TAKE OFF AT 90 KTS DUE TO FWD ENTRY DOOR LIGHT CREW VERIFIED TO TOMC THAT FWD ENTRY DOOR HANDLE WAS NEVER COMPLETELY CLOSED FOR DEPARTURE, CREW CLOSED DOOR HANDLE COMPLETELY WITH NO DEFECTS. CREW OBSERVED BRAKE COOLING PERIOD PER THE FM.
- [SDR CALA2023021600467](https://openairdocs.org/sdr/CALA2023021600467.md): Transmitter · inoperative · Feb 16, 2023 · N28478 · Boeing 7379 · Flight Control System
  > AHM: * TRAILING EDGE FLAP BYPASS VALVE ACTIVATION * DUE TO RECENT FLAP LOCKOUTS WITH ''DFD'' REPORT 272 SHOWING ON EXTENSION LT FLAP POSITION LAGGING, ( L/P 3843624) AND REFERENCING UAL BEST PRACTICES, SL 27-266, 27-196 PLZ REPLACE THE L FLAP POS X-MITTER & F
- [SDR CALA2023012000168](https://openairdocs.org/sdr/CALA2023012000168.md): Solenoid Valve · inoperative · Jan 19, 2023 · N28478 · Boeing 737924ER · Airfoil Anti/De-ice System
  > BOTH WING ANTI-ICE INOP CB POPPED.P18-3 A6 TASK30-21-00-710-801. -401, REPLACED NR 2 ENGINE GROUND THERMAL ANTI-ICE SOLENOID VALVE.
- [SDR CALA2022042501071](https://openairdocs.org/sdr/CALA2022042501071.md): Circuit Breaker · tripped · Apr 25, 2022 · N28478 · Boeing 737900ER · Air Intake Anti/De-Ice System
  > ANTI-ICE; RAIN ENG 1; WING CONT CIRCUIT BREAKER TRIPPE D. WING ANTI ICE AND NMBR 1 ENG BLUE LIGHTS INOP FOUND ENGINE 1ENGI NE AND WING CONTROL CB POPPED CB A6 ON THE P18-3 CAPPED. BOTH WING ANTI-ICE VLV LOCKED CLOSED DDP ACP PER MEL HAS HISTORY. ADD EMP:U075
- [SDR CALA2021051700665](https://openairdocs.org/sdr/CALA2021051700665.md): Bypass Switch · intermittent · May 14, 2021 · N28478 · Boeing 737924ER · Engine Oil Indicating System
  > OIL FILTER BYPASS ILLUM AT CRUISE. FOLLOWED QRH AND SHUTDWN ENG 2 NO OVERWEIGHT LANDING PER CREW OIL PRESSURE WAS 50PSI AND ALL OTHER PARAMETER WAS NORMAL BEFORE ENG WAS SHUT DOWN BY FLT CREW. NO MAINT MSG SHOWN ON EEC BITE TEST, CHECKED OIL SCAVENGER FILTER N
- [SDR CALA2020111101258](https://openairdocs.org/sdr/CALA2020111101258.md): Idg · failed · Nov 11, 2020 · N28478 · Boeing 737924ER · AC Generator-Alternator
  > APU FAULT LIGHT ILLUMINATED WITH 2 ATTEMPT START UPDATED MAA CODE FIX USING VENDOR MAA SCREEN. PLEASE CONTACT TOMC BEFORE COMMENCING ANY WORK. UPDATED MAA CODE FIX USING VENDOR MAA SCREEN UPDATED MAA CODE FIX USING VENDOR MAA SCREEN, PLEASE CONTACT TOMC BEFO
- [SDR CALA2019111601990](https://openairdocs.org/sdr/CALA2019111601990.md): Display · malfunctioned · Nov 14, 2019 · N28478 · Boeing 737924ER · Flight Management Computing Hardware System
  > ON TAKEOFF SFO TO HNL, LOST F/O AIRSPEED AND ALT INDICATIONS FOR 20SEC. REPEAT FAILURE PRV LEG. PERFORMED PITOT AND STATIC SYS 2 LEAK TEST AND NO LEAK FOUND, REF AMM 34-11-00. RPL DEU#2 PER AMM 31-62-21, CHECK GOOD. RPL #2 ADI RU REF AMM 34-21-01, CHECKS GOOD.
- [SDR CALA2019060700887](https://openairdocs.org/sdr/CALA2019060700887.md): Sign · broken · May 30, 2019 · N28478 · Boeing 737924ER · Emergency Lighting
  > EXIT SIGN 38C BROKEN. REPLACED LENS COVER. LIGHT ASSY OK.
- [SDR CALA2018101902143](https://openairdocs.org/sdr/CALA2018101902143.md): Fuse · blown · Oct 19, 2018 · N28478 · Boeing 737924ER · Emergency Lighting
  > FIRST CLASS SEAT, EMERGENCY LIGHTS INOP. FOUND FUSE BLOWN FOR EGRESS PATH LIGHTING IN 1ST CLASS. REPLACED SAME AND ALL OPS CHECKS GOOD.
- [SDR CALA2018030100835](https://openairdocs.org/sdr/CALA2018030100835.md): Battery Pack · inoperative · Mar 1, 2018 · N28478 · Boeing 737924ER · Emergency Lighting
  > AISLE EMERGENCY LIGHTS AT ROW 31 AND ROW 34 RIGHT HAND SIDE ARE INOPERATIVE. REMOVED AND REPLACED THE BATTERY PACK AT ROW 31R IAW AMM 33-51-06, OPS CHECKED GOOD.
- [SDR CALA2018012200292](https://openairdocs.org/sdr/CALA2018012200292.md): Battery Pack · faulty · Jan 22, 2018 · N28478 · Boeing 737924ER · Emergency Lighting
  > CAPT''S DOME LITE--EMERGENCY LITE INOP. RELAMPED, NOT ABLE TO OPS CK DUE TO EMERGENCY LIGHTS INOP OVER 1L AND 1L FLOOR LIGHTED, EMERGENCY SIGN OVER F/C TO COCKPIT ALSO INOP. TROUBLESHOT SYSTEM, REPLACED EMERGENCY LIGHT BATTERY PACK REF MM 33-51-06. ALL LIGHTS
- [SDR CALA2017120104279](https://openairdocs.org/sdr/CALA2017120104279.md): Battery Pack · inoperative · Dec 1, 2017 · N28478 · Boeing 737924ER · Emergency Lighting
  > FWD GALLEY DOOR EMERGENCY LIGHTS INOP REPLACED EMERGENCY POWER PACK BATTERY M730, OPS CHECK GOOD. MM 33-51-06.
- [SDR CALA2017091103150](https://openairdocs.org/sdr/CALA2017091103150.md): Lens · missing · Sep 11, 2017 · N28478 · Boeing 737924ER · Emergency Lighting
  > EMERGENCY EXIT LIGHT NEAR FWD CLOSET IS MISSING THE LENS. LIGHT IS OPERATIVE. INSTALLED A NEW LENS IAW AMM 33-51-14-960-802.
- [SDR CALA2017071402242](https://openairdocs.org/sdr/CALA2017071402242.md): Battery · defective · Jul 14, 2017 · N28478 · Boeing 737924ER · Emergency Lighting
  > ISLE PATH LIGHTING ROWS 35 AND AFT AND DOOR 2L EMERGENCY EXIT LIGHTING INOP. FOUND M1673 BATTERY DEFECTIVE REPLACED BATTERY REF AMM 33-51-06-960-805. OPS CHECK NORMAL.
- [SDR CALA2017042801175](https://openairdocs.org/sdr/CALA2017042801175.md): Lens · broken · Apr 28, 2017 · N28478 · Boeing 737924ER · Emergency Lighting
  > ROW 20C BROKEN EMERGENCY PATH LITE. REPLACED LENS REF CMM 25-22-51. LIGHTS CHECK OK.
- [SDR CALA2017040400844](https://openairdocs.org/sdr/CALA2017040400844.md): Wire Harness · defective · Apr 4, 2017 · N28478 · Boeing 737924ER · Light System Wiring
  > ROW 32 SEAT EEL LIGHT INOP. REPINNED WIRE HARNESS AT LT ROW 32 FOR EMERGENCY PATH LIGHTING. EEL CK'D NORMAL.
- [SDR CALA2015101200842](https://openairdocs.org/sdr/CALA2015101200842.md): Connector · faulty · Oct 12, 2015 · N28478 · Boeing 737924ER · Light System Wiring
  > ROW 8 ABC SEAT EMER LIGHT INOPERATIVE. R & R FAULTY CONNECTORS IAW SWPM 20-10-11. OPERATIONS CHECKED GOOD IAW 33-51-00.
- [SDR CALA2014072300990](https://openairdocs.org/sdr/CALA2014072300990.md): Connector · disconnected · Jul 22, 2014 · N28478 · Boeing 737924ER · Light System Wiring
  > EMERGENCY FLOOR PROXIMITY LIGHT IS INOPERATIVE AT SEAT ROW 30ABC. TROUBLESHOOT & FOUND EMER FLOOR PROXIMITY LIGHT PLUG DISCONNECTED AT SEAT ROW 30ABC. RECONNECTED PLUG & OPERATIONS CHECKED GOOD IAW NG AMM 33-51-11.
- [SDR CALA2014072100975](https://openairdocs.org/sdr/CALA2014072100975.md): Light · inoperative · Jul 21, 2014 · N28478 · Boeing 737924ER · Emergency Lighting
  > SUPPORT TASK EXTERIOR EMER LIGHT LT SIDE LOWER AFT SLIDE LIGHT INOPERATIVE. R & R LAMP AT LT SIDE LOWER AFT, EXTERIOR EMER SLIDE LIGHT & OPERATIONS CHECKED GOOD IAW AMM 33-51-04 PN CM767.
- [SDR CALA2014030600288](https://openairdocs.org/sdr/CALA2014030600288.md): Light · inoperative · Mar 5, 2014 · N28478 · Boeing 737924 · Emergency Lighting
  > AFT OF R1 DOOR EXTERIOR EMERGENCY LIGHT WONT ILLUMINATE. RELAMPED EXTERIOR EMERGENCY LIGHT AFT OF R1 DOOR, CHECKED GOOD IAW AMM 33-51-04-960-801. WORK ACCOMPLISHED ON ATS NON-ROUTINE 5003 00045.

## 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 = 'N28478' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N28478/reports

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