# Service difficulty reports: N78540

A list on [N78540](https://openairdocs.org/aircraft/N78540.md).

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

- [SDR CALA2026100820233](https://openairdocs.org/sdr/CALA2026100820233.md): Unknown · odor · Oct 5, 2026 · N78540 · Boeing 737824 · Air Distribution System
  > SMOKE AND FUMES IN THE FLIGHT DECK ON TAKEOFF RTO AT 50 KTS. CREW INDICATED A HAZE WITH THE ODOR LIKE BURNED OIL. ACCOMPLISHED CONDITIONAL INSPECTION IAW AMM 05-51-26-800 -801-C. PERFORMED ENGINE RUN UP AT TAKEOFF POWER FOR 3 MINUTES IAW AMM 71-00-00-800-808
- [SDR CALA2026100720208](https://openairdocs.org/sdr/CALA2026100720208.md): Unknown · odor · Oct 5, 2026 · N78540 · Boeing 737824 · Air Distribution System
  > REPORT FAINT MUSTY SMELL WHEN CLIMBING FROM 6000 FEET THROUGH 13000 FEET. SMELL WENT AWAY AND CAME BACK DESCENDING THROUGH 13000 FEET AND WENT AWAY AGAIN THROUGH 10000 FEET. REPLACED RECIRCULATION FILTER, FOWARD PIT LEFT HAND SIDE. OPS CHECK NO SMELL.
- [SDR CALA2026090719256](https://openairdocs.org/sdr/CALA2026090719256.md): Support · corroded · Sep 3, 2026 · N78540 · Boeing 737824 · Wing Miscellaneous Structure
  > LEFT WING LE O/B LOWER PANEL SUPPORT HAS CORROSION AT STA SS 67.53 LH SIDE. REMOVED SUPPORT ON LEFT WING LE O/B LOWER PANEL AT SLAT STA 67.53 LT SIDE, RECEIVED NEW SUPPORT. LOCATED AND DRILLED THE NEW SUPPORT, APPLIED ALODINE ON NEW HOLES, APPLIED PRIMER & I
- [SDR CALA2026092819874](https://openairdocs.org/sdr/CALA2026092819874.md): Frame · cracked · Sep 1, 2026 · N78540 · Boeing 737824 · Fuselage Main, Frame
  > AFTER NDT INSPECTION ON FRAME 727E UPPER HOLE, FOUND A CRACK. EVALUATED DENT ON VERTICAL LEADING EDGE, FOUND TO BE WITHIN LIMITS IAW SRM 55-30-01-1A-1, PAR. 4.A, TABLE 101. PERFORMED DENT REWORK. PERFORMED NDT, NO CRACK SIGNAL NOTED, AND APPLIED ALODINE IA
- [SDR CALA2026090919315](https://openairdocs.org/sdr/CALA2026090919315.md): Web · corroded · Aug 26, 2026 · N78540 · Boeing 737824 · Fuselage Miscellaneous Structure
  > FWD CARGO, LOWER MAIN SILL WEB HAD TWO POINTS OF POSSIBLE CORROSION. REMOVED THE FWD CARGO LOWER MAIN SILL WEB, LOCATED, DRILLED, COUNTERSANK, APPLIED ALODINE, PRIMER, INSTALLED NUTPLATES AND INSTALLED NEW WEB IAW SRM 53-30-15-1A-1, SRM 51-10-02-0G-0, SRM 51
- [SDR CALA2026090719250](https://openairdocs.org/sdr/CALA2026090719250.md): Support · corroded · Aug 26, 2026 · N78540 · Boeing 737824 · Wing Miscellaneous Structure
  > LEFT WING LE O/B LOWER PANEL SUPPORT HAS CORROSION AT STA SS 67.53 RH SIDE. REMOVED SUPPORT ON LEFT WING LE O/B LOWER PANEL AT STA. SS 67.53 RH SIDE, RECEIVED NEW SUPPORT TAG A462489 P/N. 116A5301U37, LOCATED AND DRILL NEW SUPPORT, APPLIED ALODINE ON NEW HOL
- [SDR CALA2026082118780](https://openairdocs.org/sdr/CALA2026082118780.md): Channel · corroded · Aug 8, 2026 · N78540 · Boeing 737824 · Fuselage Miscellaneous Structure
  > RIGHT FWD CARGO ZEE CHANNEL BTWN BS 500A - 500I WITH POSSIBLE CORROSION. PERFORMED PERMANENT REPAIR ON FWD CARGO BAY RT ZEE CHANNEL BTWN BS 500A - 500I IAW SRM 53-00-53-2R-5, 51-40-02-0G-0, 51-40-05-0G-0, 51-40-08-0G-0, & AMM 51-21-72-370-804, 20-60-07-913-8
- [SDR CALA2026081218508](https://openairdocs.org/sdr/CALA2026081218508.md): Angle · cracked · Aug 8, 2026 · N78540 · Boeing 737824 · Passenger Compartment Equipment
  > AFTER OF BAFFLE REMOVAL FOUND ANGLE ON BS 500A CRACKED. REMOVED THE ANGLE, FABRICATED, LOCATED, DRILLED, APPLIED ALODINE, APPLIED PRIMER AND INSTALLED THE ANGLE IAW SRM 53-30-53-0I-2, 51-40-02-0G-0, 51-40-05-0G-0, AMM 51-21-41-370-802, 51-21-72-370-804 AND
- [SDR CALA2026081218504](https://openairdocs.org/sdr/CALA2026081218504.md): Baffle · cracked · Aug 8, 2026 · N78540 · Boeing 737824 · Fuselage Miscellaneous Structure
  > AFTER OF ZEE CHANNEL REMOVAL, FOUND BAFFLE BTWN BS 500A - 500B CRACKED, NEED TO BE FABRICATED. REMOVED BAFFLE, FABRICATED, LOCATED, DRILLED, APPLIED ALODINE, APPLIED PRIMER AND INSTALLED BAFFLE IAW SRM 51-40-02-0G-0, 51-40-05-0G-0, 51-40-08-0G-0, AMM 51-21
- [SDR CALA2026030214142](https://openairdocs.org/sdr/CALA2026030214142.md): Light · detached · Feb 27, 2026 · N78540 · Boeing 737824 · Emergency Lighting
  > EMERGENCY LIGHT DISPLACED FROM MOUNT ABOVE OVERHEAD BIN ABOVE ROW 34ABC. RESECURED EMERGENCY LIGHT MOUNT ABOVE OVERHEAD BIN AT ROW 34ABC.
- [SDR CALA2025100609610](https://openairdocs.org/sdr/CALA2025100609610.md): Wire Harness · faulted · Oct 3, 2025 · N78540 · Boeing 737824 · Light System Wiring
  > EMERGENCY PATHWAY LIGHT AT SEAT 36C INOP FOUND WIRE HARNESS FROM SEAT TRACK TO LIGHT TO BE ISSUE. REPLACED WITH NEW REF WDM 33-51-22. OPS CHECK GOOD. LIGHT WORKS AS REQUIRED.PARTS USED: 29-3350-3-0016, QTY:1
- [SDR CALA2025090408453](https://openairdocs.org/sdr/CALA2025090408453.md): Girt Bar · no discrepancy · Sep 2, 2025 · N78540 · Boeing 737824 · Emergency Equipment
  > FLAP AT DOOR 2L ON FLOOR BY GIRT BAR IS STICKING OUT AND WONT RETRACT INSPECTED FLAPER FOUND NOT TOUCHING FLOOR OK TO CONT PER REF MM 25-66-01-400-803,
- [SDR CALA2025082007973](https://openairdocs.org/sdr/CALA2025082007973.md): Structure · misrepaired · Aug 19, 2025 · N78540 · Boeing 737824 · Fuselage Structure (General)
  > EA4435-04300 REV D OPS 018, STEP B1(D), 1 HOLE DRILLED FOR GROUND STUD PER VIEW B-B, SHEET 2, AT STA 380LH PER DRAWING DG235-141882 REV B PRIOR TO ECRA 4435-04614 RELEASE TO N/A OPS 18 PER ITEM 8. REQUEST ENGINEERING APPROVAL TO PLU HOLE OR INSTALL THE GROUND
- [SDR CALA2025081807907](https://openairdocs.org/sdr/CALA2025081807907.md): Battery Pack · inoperative · Aug 14, 2025 · N78540 · Boeing 737824 · Emergency Lighting
  > MULTIPLE EEPL LIGHTS OUT THROUGHOUT CABIN. SUPPORT TASK NSA EMX N/R 00262. SDR INFO ONLY REMOVED BATTERY PACKS M1694 AND M2335 IAWB737-800 AMM 33-51-06. INSTALLED BATTERY PACK M1694 P/N: AD-D717-01-100 S/N: 390459 A ND M2335 P/N:AD-D717-01-100. S/N:376904 IAW
- [SDR CALA2025081407740](https://openairdocs.org/sdr/CALA2025081407740.md): Chain · disconnected · Aug 13, 2025 · N78540 · Boeing 737824 · Escape Slide
  > R2 DOOR SLIDE CHAIN ASSY NOT ATTACHED TO SKIRT. REATTACHED R2 DOOR SLIDE CHAIN ASSY TO SKIRT IAW AMM 25-66-01.
- [SDR CALA2025070806345](https://openairdocs.org/sdr/CALA2025070806345.md): Check Valve · failed · Jul 7, 2025 · N78540 · Boeing 737824 · Compressor Bleed Valve
  > FOUND OP1 5TH STAGE VALVE TO BE UNSERVICEABLE. REMOVED AND REPLACED L/H #1 ENG.T/R 5TH STAGE VALVE I.A.W. AMM 36-11-02 THIS ENTRY IS FOR FAILURE OF 5TH STAGE CHECK VALVE.
- [SDR CALA2025062305804](https://openairdocs.org/sdr/CALA2025062305804.md): Battery Pack · discharged · Jun 21, 2025 · N78540 · Boeing 737824 · Emergency Lighting
  > EMERGENCY EXIT SIGNS AT BOTH AFT EMERGENCY EXIT HATCHES INOP. REPLACED BATTERY PACK ON POWER SUPPLY M1695 IAW AMM 33-51-06. OPS CHECK GOOD.
- [SDR CALA2024122401639](https://openairdocs.org/sdr/CALA2024122401639.md): Indicator · broken · Dec 22, 2024 · N78540 · Boeing 737824 · Life Raft
  > MID CABIN LIFE RAFT TAMPER INDICATOR BROKEN. RESEALED MID CABIN LIFE RAFT.
- [SDR CALA2024102400921](https://openairdocs.org/sdr/CALA2024102400921.md): Coffeemaker · unsecure · Oct 24, 2024 · N78540 · Boeing 737824 · Buffet/Galleys
  > COFFEE MAKER 106 FOUND UNLOCKED/UNSECURED RESECURED AND LOCKED CM106 REF AMM 25-34-00. OPS CK GOOD.
- [SDR CALA2024072402092](https://openairdocs.org/sdr/CALA2024072402092.md): Coffeemaker · contaminated · Jul 23, 2024 · N78540 · Boeing 737824 · Buffet/Galleys
  > SMOKE IN CABIN. STRONG ODOR. NEED INSPECTION. FWD GALLEY AREA. PERFORMED SMOKE / ODOR IN THE CABIN CO NDITIONAL INSPECTION IAW AMM 05-51-26-800-801-C1. ONLY ITEM FOU ND WAS BURNT COFFEE ON FWD GALLEY COFFEEMAKER HOT PLATE. CLEANED HOT PLATE AS REQ''D AND BREW
- [SDR CALA2023102503169](https://openairdocs.org/sdr/CALA2023102503169.md): Winglet · damaged · Oct 22, 2023 · N78540 · Boeing 737824 · Wing Main, Frame Structure
  > RIGHT WING UPPER SIMITAR BENT AT THE TIP. PICTURES ADDED THE DAMAGED AREA IS ON THE UPPER RH WINGLET NOT SIMITAR. BEND IS PHOTO OF RIGHT DAMAGED AFT WING LET TIP AND AFT LEFT UNDAMAGED 2 INCHES FROM THE AFT WING TIP NO CRACKS NOTED WINGTIP ADD FOR COMPARISON
- [SDR CALA2023092702887](https://openairdocs.org/sdr/CALA2023092702887.md): Battery Pack · inoperative · Sep 25, 2023 · N78540 · Boeing 737824 · Emergency Lighting
  > BATTERY PACK M1675, INOP AT FWD ENTRY. REMOVED AND REPLACED BATTERY PACK M1675 AT FWD ENTRY IAW AMM 33-51-06-960-805 AND PERFORMED INSTALLATION TEST IAW AMM TASK 33-51-06-710-004. TEST GOOD.
- [SDR CALA2018110902344](https://openairdocs.org/sdr/CALA2018110902344.md): Lamp · inoperative · Nov 9, 2018 · N78540 · Boeing 737824 · Emergency Lighting
  > SEATS 14 & 24 ABC EEL PATHWAY LIGHTING INOP. RELAMPED REF AMM 33-51-15 OPS CHECKED OK. ACP IDT INSP OF RELAMPING OF EPL LIGHT AT SEAT 14 AND 24 REF GMM 09-10-05 AND AMM 33-51-15. OPS CK GOOD.
- [SDR CALA2017121304438](https://openairdocs.org/sdr/CALA2017121304438.md): Light · missing · Dec 13, 2017 · N78540 · Boeing 737824 · Emergency Lighting
  > INTERIOR LT FWD WALL MOUNTED EEL LIGHT FORWARD OF OVERWING ESCAPE DOOR MISSING BULBS RELAMPED PER MM 33-51-01. OPS NORMAL.
- [SDR CALA2017121304437](https://openairdocs.org/sdr/CALA2017121304437.md): Light · inoperative · Dec 13, 2017 · N78540 · Boeing 737824 · Emergency Lighting
  > LT AFT EXTERNAL EEL LIGHT INOP. RELAMPED OVERWING AFT LT EXTERNAL EEL LIGHT PER MM 33-51-04. OP S NORMAL.

## 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 = 'N78540' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N78540/reports

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