# Service difficulty reports: JASC 2430

A list on [JASC 2430](https://openairdocs.org/jasc/2430.md).

Reports filed under 2430 · DC Generating System, newest first.

Page 1 of 23 · 1,121 reports

- [SDR 4EZF20261015362AG](https://openairdocs.org/sdr/4EZF20261015362AG.md): Starter Gen · overtemp · Oct 15, 2026 · N326AG · Saab 340B
  > R GEN OVER TEMP LGT ILLUMINATING WITH GEN ONLINE. REMOVED AND REPLACED THE RH STARTER GENERATOR IAW SAAB 340B AMM 24-31-05-04. OPERATIONAL TEST SATISFACTORY.
- [SDR 2026FA0000743](https://openairdocs.org/sdr/2026FA0000743.md): Power Cable · broken · Sep 18, 2026 · N789ND · Piper PA28181
  > THE RING TERMINAL ON THE OUTPUT TERMINAL OF THE ALTERNATOR BREAKS OFF, AFTER BREAKING THE TWO PARTS OF THE RING TERMINAL MAKE INTERMITTENT CONTACT; THIS INTERMITTENT CONTACT MAKES THE ALTERNATOR FAIL SWITCH (THAT IS MOUNTED INSIDE THE COCKPIT) OVERHEAT AND SHO
- [SDR CVGA20260917003](https://openairdocs.org/sdr/CVGA20260917003.md): Gcu · failed · Sep 13, 2026 · N897JH · Emb EMB505
  > RECEIVED A BATT EXCEEDANCE CAS MESSAGE DURING CLIMB, MOMENTARARY A FEW TIMES, THEN STEADY. GENERATOR AND BATTERY 1 VOLTAGE 28.6 +-0.2, GENERATOR AND BATTERY 2 VOLTAGE 29.0 ( EMERGENCY DECLARED) REMOVED AND REPLACED NR 2 GCU WITH AN INSPECTED GCU IAW AMM 24-31
- [SDR DXTA2026090809572](https://openairdocs.org/sdr/DXTA2026090809572.md): Generator · failed · Sep 5, 2026 · N640QS · Cessna 680A
  > SHORT FINAL, STARTED APU FOR GROUND COOLING PAX COMFORT. AS SOON AS WE STARTED THE APU WE GOT WINDSHIELD HEAT INOP L AND DC GEN OFF L CAS MESSAGES DISPLAYED. CORRECTIVE ACTION: REPLACED L/H GCU WITH REPAIRED GCU IAW CE-680AS AMM 24-30-45. OPERATIONAL CHECK SAT
- [SDR QR9R2026090300002](https://openairdocs.org/sdr/QR9R2026090300002.md): Gcu · failed · Sep 3, 2026 · Bolkms BK117C2
  > ON APPROACH, GEN DISCON ON CAD AND GEN AMPS DROPPED TO 0.0 ON SYSTEM #2. TROUBLESHOOTING CONFIRMED THE #2 GCU TO BE BAD. REMOVED AND REPLACED GCU IAW AMM 24-30-00, 4-1; MOC SUCCESSFULLY COMPLETED.
- [SDR QR9R2026081200001](https://openairdocs.org/sdr/QR9R2026081200001.md): Gcu · faulted · Aug 12, 2026 · Bolkms BK117C2
  > #2 GEN DISCON CAUTION APPEARED AFTER BOTH ENGINES WERE STARTED, ZERO AMPS ON NR 2. REMOVED AND REPLACED NR 2 GCU IAW 24-30-00, 4-1. MOC SUCCESSFULLY COMPLETED.
- [SDR QR9R2026070800001](https://openairdocs.org/sdr/QR9R2026070800001.md): Gcu · failed · Jul 8, 2026 · Bolkms BK117C2
  > GEN NR 2 DISCONNECT ON THE GROUND DURING STUDENT CHANGE AND COULD NOT BE RESET. BEFORE THE FAILURE, LOAD BALANCE WAS 15 AMPS GEN #1 AND 40 AMPS GEN #2. REMOVED AND REPLACED #2 GCU IAW AMM 24-30-00, 4-1.
- [SDR HNAA2026042200343](https://openairdocs.org/sdr/HNAA2026042200343.md): Battery · inoperative · Apr 20, 2026 · N662EH · Emb EMB145LR
  > BKUP BATT OFF BUS NEVER CLEARED IN FLIGHT, (CREW) RAN QRH, MSG NEVER CLEARED. R&R BACKUP BATTERY IRT AMM 24-35-01. NO FIX. R&R RELAYS K0456,K0457 IRT AMM 20-13-02. NO FIX. R&R ELEC CONTROL PANEL IRT AMM 24-00-01. NO FIX. DISCONNECT ELECTRICAL CONNECTOR TO B/
- [SDR QR9R2026041300001](https://openairdocs.org/sdr/QR9R2026041300001.md): Gcu · faulted · Apr 13, 2026 · Bolkms BK117C2
  > GEN DISCON CAUTION LIGHT INTERMITTENT ILLUMINATION DURING HOVER TAXI, NO OTHER INDICATION. GEN OUTPUT WITHIN NORMAL PARAMETERS. THIS WAS THE SECOND TIME WITH SAME CAUTION WITHIN LAST 2 FLIGHTS. REMOVED AND REPLACED #1 GCU IAW AMM 24-30-00, 4-1.
- [SDR HYIA20260424002](https://openairdocs.org/sdr/HYIA20260424002.md): Belt · failed · Apr 11, 2026 · N288CA · Tecnam P2012
  > PILOT REPORTED LEFT AND RIGHT ALTERNATOR FAILURES IN FLIGHT. MAINTENANCE INSPECTED AND FOUND FOUND BOTH ALTERNATOR BELTS TO HAVE FAILED. LEFT AND RIGHT ALTERNATOR BELTS WERE REPLACED WITH NO FURTHER DEFECTS NOTED.
- [SDR 141A2026032600001](https://openairdocs.org/sdr/141A2026032600001.md): Generator · faulted · Mar 26, 2026 · N852MA · Cessna 208B
  > DURING CLIMB OUT OF HNL, GEN AMPS AND STBY POWER ON ANNUNCIATORS BOTH ILLUMINATED INTERMITTENTLY. GEN AND ALTERNATOR AMPS BOTH FLUCTUATED BETWEEN APPROXIMATELY 0-15 AMPS. WE REQUESTED TO RETURN TO HNL AND MADE A RECAUTIONARY LANDING. WHEN ASKED BY ATC IF WE R
- [SDR G41A2026032300207](https://openairdocs.org/sdr/G41A2026032300207.md): Generator · failed · Mar 21, 2026 · N415SG · Lear 60LEAR
  > DEPARTING KAUS HEADING TO KSTL WHEN THE CREW NOTICED THE LH GENERATOR LIGHT ON AND THE AMP OUTPUT WAS ZERO. THEY ELECTED TO DIVERT INTO KELP (ATI JETS MAINTENANCE BASE). THE AIRCRAFT WAS LANDED SAFELY IN ELP, ATI MAINTENANCE MET THE AIRCRAFT AND TESTED THE GEN
- [SDR 2026FA0000148](https://openairdocs.org/sdr/2026FA0000148.md): Generator · failed · Feb 27, 2026 · N369CA · Amd FALCON7X
  > PIREP: N369CA SN 087 DEPARTED KHOU TO KIAD. DURING AIRCRAFT CLIMB THE PILOT IDENTIFIED AN AMBER CAS MESSAGE. "ELEC: GEN 2 FAULT". THE CREW ACCOMPLISHED THE ASSOCIATED CHECKLIST. THE PILOT DECLARED AN EMERGENCY WITH ATC AND REQUESTED IMMEDIATE VECTORS FOR RETUR
- [SDR QR9R2026022700001](https://openairdocs.org/sdr/QR9R2026022700001.md): Gcu · failed · Feb 27, 2026 · Bolkms BK117C2
  > GEN 2 DISCONNECT AT IDLE; MAINTENANCE WAS UNABLE TO RESET. A TEST FLIGHT EVAL REVEALED #2 GENERATOR FAILED TO COME ONLINE WITH #2 GEN DISC DISPLAYED ON CAD. #2 GEN AMPS WERE 0 A. BATTERY AMP DISPLAYED +15 A AT START, DROPPED TO 0 A FOR SEVERAL MINUTES THEN CAM
- [SDR CWQA20260306001](https://openairdocs.org/sdr/CWQA20260306001.md): Bearing · failed · Feb 2, 2026 · N993JC · Emb EMB135BJ
  > DURING CRUISE CREW RECEIVED GEN 4 OFF BUS AND GEN4 BRG FAIL MESSAGES. CREW FOLLOWED CHECKLIST AND SUBSEQUENT LANDING PERFORMED WITHOUT INCIDENT. MAINTENANCE EVALUATION FOUND #4 GENERATOR HAD A BEARING FAILURE WHERE INSTEAD OF SHAFT SHEARING AS EXPECTED, THE C
- [SDR DXTA2026012806661](https://openairdocs.org/sdr/DXTA2026012806661.md): Starter Gen · faulty · Jan 24, 2026 · N478QS · Emb EMB505
  > WHILE IN CRUISE A GEN 1 OFF CAS APPEARED. WHILE STARTING TO WORK THROUGH QRH, STARTED GETTING A RAPIDLY CHANGING LIST OF CAS MESSAGES & ERRONEOUS INDICATIONS SUCH AS FLUCTUATING ROLL TRIM SETTINGS EVEN THOUGH ACTUAL TRIM FELT THE SAME. OTHER MESSAGES INCLUDED
- [SDR DXTA2026011206487](https://openairdocs.org/sdr/DXTA2026011206487.md): Pcb · faulty · Jan 8, 2026 · N679QS · Cessna 680A
  > THE LT DC GEN OFF L AMBER CAS MESS APPEARED RIGHT AT ABOUT 90-100 KTS ON TAKE OFF ROLL, ARES DATA SENT TO TEXTRON ON 1/8 AT 1645.EZ1/8 PERFORMED ENG RUNS VERIFIED NR 1 GEN WILL NOT COME ONLINE, PERFORMED GCU FAULT CHK IAW AMM 24-30-45 NOTED SYS LIGHT ON STEADY
- [SDR AALA202512230138](https://openairdocs.org/sdr/AALA202512230138.md): Coffeemaker · odor · Dec 19, 2025 · N913US · Airbus A321231
  > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO DFW DUE TO THE FLIGHT CREW REPORTING THAT WHILE CLIMBING OUT OF FL220, THE FLIGHT ATTENDANTS IN AFT GALLEY REPORT AN ELECTRICAL BURNING SMELL. FLIGHT CREW TURNED OFF THE COMMERCIAL
- [SDR QXEA2025120200360](https://openairdocs.org/sdr/QXEA2025120200360.md): Switch · out of position · Dec 1, 2025 · N665QX · Emb ERJ170200LR
  > FLIGHT 2032. TRU 1 FAIL AT JET BRIDGE ON GPU DURING TAKEOFF ROLL. REJECTED TAKEOFF AT 65 KNOTS. REMOVED FROM SERVICE. FOUND TRU 1 SWITCH INADVERTENTLY SWITCHED TO THE "OFF" POSITION. PERFORMED DC ESSENTIAL GENERATION SYSTEM OPS TEST PER AMM TASK 24-31-00-710-8
- [SDR CALA2025112511455](https://openairdocs.org/sdr/CALA2025112511455.md): Oven · dirty · Nov 23, 2025 · N665UA · Boeing 767322
  > FAS REPORTED FUMES IN REAR OF AIRCRAFT 10 MINS INTO FLIGHT. 4 6 PERSONNEL PUT ON O2CREW DEBRIEF CARRIED OUT, FORM 46-6020 ATTACHED AND SENT TO TOM-C. SMOKE/FUMES IN CABIN INSPECTIONS CARRIED OUT AS PER AMM 05-51-56-940-801-C1, STEP 1.A - 1.D.(8). UNABLE TO REP
- [SDR AALA202511240617](https://openairdocs.org/sdr/AALA202511240617.md): Coffeemaker · leaking · Nov 23, 2025 · N139AN · Airbus A321231
  > AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO IAH DUE TO THE FLIGHT CREW REPORTING THAT IN CRUISE AT FL320 A FLIGHT ATTENDANT REPORTED A STRONG PUNGENT, ACRID SMELL IN THE AFT GALLEY, COMING FROM THE AIR VENT BY THE COFFEE MAKER
- [SDR DXTA2025111105645](https://openairdocs.org/sdr/DXTA2025111105645.md): Contactor · faulted · Nov 10, 2025 · N343QS · Emb EMB505
  > REPEAT WRITE UP ON APPROACH TO LANDING IN KYIP WE RECEIVED GEN 1 OFF BUS YELLOW CAS ACCOMPANIED BY SHED BUS OFF. PLACED GEN 1 SWITCH IN OFF POSITION PER QRH DUE TO THE SHORT DURATION OF FLIGHT REMAINING. PLEASE NOTE THAT N1 FOR THE SAME RESPECTIVE THROTTLE POS
- [SDR KCSA2025110861](https://openairdocs.org/sdr/KCSA2025110861.md): Trans Rectifier · inoperative · Nov 8, 2025 · N716CK · Boeing 7474B5F
  > 100281155: MULTIPLE ELECTRICAL FAILURES. ACTION TAKEN: T/S & FOUND DC 1 DIST P6 C/B POPPED IAW B747 WDM 24-54-12. REMOVED & REINSTALLED #1 TRU IAW B747-400 AMM 24-32-01. MSG CLEARED, OPS CHECK FAILED. 100281156: #1 TRU FAIL. ACTION TAKEN: REMOVED & REPLACED #1
- [SDR SWAA2025110531911](https://openairdocs.org/sdr/SWAA2025110531911.md): Control Unit · faulted · Nov 4, 2025 · N8918Q · Boeing 7378
  > BATTERY BUSS SECT 2 CIRCUIT BREAKER TRIPPED AT 38;000. BOTH PACK LIGHTS ILLUMINATED, STBY POWER OFF LIGHT, NR 2 REVERSER ALL ILLUMINATED. B AUTOPILOT, PA, CABIN INTERCOM & APU GEN LIGHTS INOPERATIVE. ALL RESET AFTER CIRCUIT BREAKER RESET. MAINT LIGHT ILLUMI
- [SDR J7SA2025111900462](https://openairdocs.org/sdr/J7SA2025111900462.md): Generator · failed · Nov 3, 2025 · N600FX · Emb EMB550
  > GENERATOR 1 FAILED AT FL430 AFTER LANDING AT KPRB. ENGINE 1 LOST ALL OIL. REPLACED FAILED LH GENERATOR. REPLACED DAMAGED LTD. WORK COMPLETED IAW EMB PRAETOR AMM 24-31-01. INSTALLED REPLACEMENT BEARINGS ONTO #1 ENGINE GENERATOR AGB GEAR SHAFT IAW HONEYWELL AS90
- [SDR DXTA2025102105362](https://openairdocs.org/sdr/DXTA2025102105362.md): Pcb · faulty · Oct 18, 2025 · N830QS · Textrn TEXTRON700
  > DURING DESCENT YELLOW CAS MESSAGE, "ELEC EMER L," DISPLAYED. SEVERAL MINUTES LATER YELLOW CAS MESSAGE, "BATTERY DISCHARGE L," ALSO DISPLAYED. FOLLOWED QRH PROCEDURES TO INCLUDE AN EMERGENCY GEAR EXTENSION. REMOVED FAILED ELE SYS MON PCB NZ107 AND INSTALLED NE
- [SDR NACA2025093000003](https://openairdocs.org/sdr/NACA2025093000003.md): Control Unit · faulted · Sep 30, 2025 · N567NC · Boeing 76733A
  > BUSS POWER CONTROL UNIT HAS A FAULT MESSAGE IDG / OIL OUT. PERFORMED BPCU BITE PROCEDURE PER B-767 FIM 24-30 FAULT TREE 801. BITE PROCEDURE OK.
- [SDR QR9R2025082600002](https://openairdocs.org/sdr/QR9R2025082600002.md): Gcu · failed · Aug 26, 2025 · Bolkms BK117C2
  > GEN DISCON ON #1 SIDE APPROXIMATELY 10 MINUTES INTO FLIGHT. REMOVED AND REPLACED #1 ENG GCU IAW AMM 24-30-00, 4-1.
- [SDR KY7A202508250038](https://openairdocs.org/sdr/KY7A202508250038.md): Control Unit · not reported · Aug 21, 2025 · N425MA · Swrngn SA226TC
  > REPLACED RH GENERATOR CONTROL UNIT C0303 P# 51509-002B SN 15239A
- [SDR ASAA2025081260077](https://openairdocs.org/sdr/ASAA2025081260077.md): Control Panel · arced · Aug 12, 2025 · N974AK · Boeing 7379
  > ON THE GROUND ILLUMINATION OF TR & MAINT LIGHT ON APU BUS, DISCONNECTED GROUND PWR, 60 SECONDS LATER LOST ALL POWER, LOST FO INSTRUMENTATION. TR UNIT & MAINT LIGHTS ILLUMINATED. SMOKE IN COCKPIT. SMOKE ALSO REPORTED FROM THE AFT OF THE AIRCRAFT. GROUNDED - YES
- [SDR CALA2025071706673](https://openairdocs.org/sdr/CALA2025071706673.md): Static Inverter · faulted · Jul 14, 2025 · N33294 · Boeing 737824
  > REJECTED T/O DURING T/O ELEC LIGHT ILLUMINATED. PER FLT CREW VIA DISPATCH, RTO AT 30 KTS. STATIC INVERTER WAS REPLACED TWICE AND SPCU WAS REPLACED ONPERFORMED POWER CHECK ON FRONT OF STATIC INVERTER WITH 27.29V DC. POWER CHECK BETWEEN PIN 1 AND PIN 3 OF D46
- [SDR AJXA2025071600032](https://openairdocs.org/sdr/AJXA2025071600032.md): Gcu · unserviceable · Jul 12, 2025 · N225GT · Cessna 750
  > DURING FLIGHT AT FL450 AIRCRAFT LOST POWER ON EICAS DISPLAY UNITS, 1,2, AND 3 CAUSED DUE TO A POWER LOSS ON THE NR 1 POWER BUSS. THE LOSS OF ONE THE NR 1 BUSS WAS CAUSED BY A FAILED GENERATOR CONTROL UNIT. THE LOSS OF POWER ON THE NUMBER ONE BUS ALSO CAUSED T
- [SDR DXTA2025070304100](https://openairdocs.org/sdr/DXTA2025070304100.md): Control Panel · faulted · Jun 30, 2025 · N330QS · Emb EMB505
  > DEPARTING KTYQ, RECEIVED AN EMER LT NOT ARM CAS MESSAGED AT 400FT EVEN THOUGH THEY WERE ARMED & NOTICED BOTH BATTERIES WERE YELLOW & DISCHARGING. DID NOT HAVE A BATT DISCHARGE CASS MESSAGE. PULLED UP THE ELECTRICAL SYNOPTIC AND IT APPEARED THAT IT WAS IN ELEC
- [SDR DXTA2025062003962](https://openairdocs.org/sdr/DXTA2025062003962.md): Circuit Breaker · failed · Jun 18, 2025 · N249QS · Cndair CL6002B16
  > IN CRUISE CREW NOTICED A FAINT ELECTRICAL BURNING SCENT. THE SCENT ABATED QUICKLY BEFORE CREW COULD DETERMINE WHERE IT ORIGINATED. CREW CHECKED FOR POPPED CIRCUIT BREAKERS AND FOUND D11 ON CBP 2 WAS POPPED - 28 VDC PWR SUPPLY 3
- [SDR J7SA2025061100448](https://openairdocs.org/sdr/J7SA2025061100448.md): Generator · faulted · May 29, 2025 · N601FX · Emb EMB550
  > DIVERTED DUE TO GEN 1 OFF BUS CAS APPROXIMATELY 2.5 HOURS INTO A FLIGHT FROM KSFO TO KPHL. CREW FOLLOWED QRH, DESCENDED TO FL310, AND STARTED THE APU. AT APPROXIMATELY 3 HOURS INTO THE FLIGHT, ADDITIONAL ALERTS WERE RECEIVED: ENGINE 1 EXCEEDANCE AND ENGINE 1 L
- [SDR QR9R2025052000002](https://openairdocs.org/sdr/QR9R2025052000002.md): Gcu · inoperative · May 20, 2025 · Bolkms BK117C2
  > GEN DISCONNECT 1 CAUTION LIGHT ILLUMINATED DURING START RUN-UP. GENERATOR 1 INOP AFTER BOTH ENG START UP. REMOVED AND REPLACED GCU IAW AMM 24-30-00, 4-1. MOC SUCCESSFULLY COMPLETED.
- [SDR QR9R2025031700002](https://openairdocs.org/sdr/QR9R2025031700002.md): Gcu · disconnected · Mar 17, 2025 · Bolkms BK117C2
  > DURING RUN-UP THE #2 GEN DISC CAUTION APPEARED. THE GEN CB ON THE #1 ESS BUS POPPED; WOULD NOT RESET. DURING TEST FLIGHT EVAL, #2 GENERATOR FAILED TO COME ONLINE. REMOVED AND REPLACED #2 GCU IAW AMM 24-30-00, 4-1. MOC SUCCESSFULLY COMPLETED.
- [SDR E07A2025030600154](https://openairdocs.org/sdr/E07A2025030600154.md): Generator · failed · Mar 2, 2025 · N301AS · Emb EMB505
  > DUAL GENERATOR FAILURE AT FL 430. EMERGENCY DECENT, AIRCRAFT WENT INTO ELECTRICAL EMERGENCY. PRESSURIZATION LOSS, O2 MASKS DEPLOYED. AIRCRAFT LANDED AND EMERGENCY BRAKING WAS USED, WHICH RESULTED IN THE TIRES FLAT SPOTTED INTO THE WHEEL. MX DOWNLOADED CMC AND
- [SDR 2025FA0000004](https://openairdocs.org/sdr/2025FA0000004.md): Alternator · failed · Jan 3, 2025 · Cessna 172G
  > THE AL:EMATO, PN 15-1014, SN H•V060493, THIS ALTERNAOR, CAME APART IN FLIGHT ON 10/27/2024. THE ONLY INDICATION OF THE FAILURE WAS AN NTEMATOR FELL IGHT. THERE WAS A LOSS OF I ENGINE OIL. FO11UNATOLY, THE PILOT FLYING THE AIRCRAFT LANDED IMMEDIATELY, BEST WE
- [SDR F3LA202412250172](https://openairdocs.org/sdr/F3LA202412250172.md): Fuse · failed · Dec 24, 2024 · N341FR · Airbus A320251N
  > ACFT WAS TAKEN OUT OF SERVICE FOR THIS EVENT. REFERENCE LOG PAGE LP464308 ITEM 2, ELEC DC ESS BUS SHED. REPLACED FUSE 20PC1 REF. AMM 24-35-00-960-801-A. OPS TEST GOOD. A/C OK FOR SERVICE. T/W S/N F9TAB12568C D/D 03/2025.
- [SDR 2024FA0000968](https://openairdocs.org/sdr/2024FA0000968.md): Generator · worn · Dec 15, 2024 · N317MP · Lear 60LEAR
  > ON 12/15/2024, N317MP, CYO317, DEPARTED KSNA REPOSITIONING TO KELP AND APPROXIMATELY ONE HOUR INTO THE FLIGHT, THE RH SIDE OF THE INSTRUMENT PANEL STARTED TO GO OUT AND COME BACK. THIS HAPPENED A COUPLE TIMES THEN STAYED OUT. THE CREW DECIDED TO MAKE AN UNSCHE
- [SDR QR9R2024111300001](https://openairdocs.org/sdr/QR9R2024111300001.md): Gcu · disconnected · Nov 13, 2024 · Bolkms BK117C2
  > DURING FLIGHT, #2 GEN DISCONNECT AND WOULD NOT RESET. REMOVED AND REPLACED #2 GCU IAW AMM 24-30-00, 4-1. T/P MOC COMPLETED IAW AMM 24-30-00, 5-3.
- [SDR 7C7A2024111200009](https://openairdocs.org/sdr/7C7A2024111200009.md): Generator · warning light · Nov 10, 2024 · N885EA · Dhav DHC8106
  > #2 DC GEN CAUTION LIGHT ILLUMINATED. RESET FAILED.
- [SDR SIMA20241011002](https://openairdocs.org/sdr/SIMA20241011002.md): Gcu · failed · Oct 11, 2024 · N249NN · Emb ERJ170200LR
  > IDG 2 OFF BUS APU FAIL (DC ESS 2) ENTRE. EMERGENCY DECLARED. DIVR MIA. MTX INSPCT RAR MAIN GENERATOR CONTROL UNIT #2 IAW AMM 24-21-19. OPS CHECK GOOD. NO MESSAGE ON EICAS.
- [SDR QR9R2024101000003](https://openairdocs.org/sdr/QR9R2024101000003.md): Gcu · disconnected · Oct 10, 2024 · Bolkms BK117C2
  > #1 GEN DISCONNECT WHILE IN FLIGHT. ATTEMPTED BUS TIE AND RESET; #1 GEN DISCONNECT REMAINED AND GEN 2 PICKED UP LOAD. DURING DC POWER CHECK WITH GCU 1 AND 2 SWAPPED, THE GEN DISCONNECT MOVED TO THE #2 SIDE. REMOVED AND REPLACED #1 GCU IAW AMM 24-30-00, 4-1. MOC
- [SDR QR9R2024100100002](https://openairdocs.org/sdr/QR9R2024100100002.md): Gcu · illuminated · Oct 1, 2024 · Bolkms BK117C2
  > #1 GEN DISCONNECT CAUTION LIGHT ILLUMINATED ON START RUN-UP, #1 GEN WOULD NOT RESET. REMOVED AND REPLACED #1 GCU IAW AMM 24-30-00, 5-3.
- [SDR QR9R2024060300001](https://openairdocs.org/sdr/QR9R2024060300001.md): Gcu · warning message · Jun 3, 2024 · Bolkms BK117C2
  > GEN DISCON SYS 2 CAUTION APPEARED IN FLIGHT. TROUBLESHOT IAW THE CHECKLIST, BUT CAUTION REMAINED. GEN AMPS ON #2 WAS READING 0 AFTER NOTICING CAUTION AND REMAINED AT 0 THROUGHOUT TROUBLESHOOT AND SHUTDOWN. AFTER SWAPPING GCU'S, THE PROBLEM FOLLOWED TO THE #1 S
- [SDR DBCA202405250003](https://openairdocs.org/sdr/DBCA202405250003.md): Pcu · failed · May 25, 2024 · N274AH · Pilats PC24
  > ON TAKEOFF FROM IAD UMS DATABASE FAIL INDICATION RECEIVED. CREW ABORTED TAKEOFF AND RETURNED TO FBO. MTN CONTACTED PILATUS SUPPORT. SUSPECT PCU DEFECTIVE. MTN REPLACED #2 PCU WITH NEW UNIT. OPS CHECKS GOOD.
- [SDR HYIA20240524003](https://openairdocs.org/sdr/HYIA20240524003.md): Nut · excess play · May 20, 2024 · N2611X · Cessna 402C
  > UPON REMOVAL OF AN ALTERNATOR FOR AN INTERNAL OIL LEAK, THE HUB NUT WAS FOUND TO BE LOOSE, ALLOWING THE THRUST WASHER TO ROTATE BY HAND. THE COTTER PIN REMAINED IN PLACE. THE UNIT WAS REMOVED FROM SERVICE PENDING FURTHER INVESTIGATION.
- [SDR HYIA20240524002](https://openairdocs.org/sdr/HYIA20240524002.md): Nut · excess play · May 20, 2024 · N256CA · Cessna 402C
  > UPON REMOVAL OF AN ALTERNATOR, THE HUB NUT WAS FOUND TO BE LOOSE, ALLOWING THE THRUST WASHER TO ROTATE BY HAND. THE COTTER PIN REMAINED IN PLACE. THE UNIT WAS REMOVED FROM SERVICE PENDING FURTHER INVESTIGATION.

Next page: https://openairdocs.org/jasc/2430/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 jasc_code = '2430'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/jasc/2430/reports

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