# Service difficulty reports: N4165G, cancelled Jul 21, 2026

A list on [N4165G, cancelled Jul 21, 2026](https://openairdocs.org/deregistered/N4165G-2026-07-21.md).

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

- [SDR XGNA2020F00000](https://openairdocs.org/sdr/XGNA2020F00000.md): Controller · inoperative · Nov 4, 2019 · N4165G · Cessna 402B · Exhaust Turbocharger
  > RIGHT ENGINE WILL NOT MAINTAIN CORRECT MANIFOLD PRESSURE.
- [SDR XGN2011F00006](https://openairdocs.org/sdr/XGN2011F00006.md): Cylinder Head · cracked · Jan 18, 2011 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > NR 2 CYLINDER CRACKED BETWEEN THE FINS AFT OF THE FUEL INJECTOR BY THE INTAKE VALVE AND WAS LEAKING FUEL. THIS CYLINDER, THECYLINDER HEAD WAS MFG WITH THE METAL THICKNESS AROUND THE INTAKE VALVE AREA TOO THIN. HAVE HAD OVER 250 FAILURES OF THESE MFG CYLINDER
- [SDR XGN2011F00005](https://openairdocs.org/sdr/XGN2011F00005.md): Cylinder Head · cracked · Jan 18, 2011 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > NR 1 CYLINDER CRACKED BETWEEN THE FINS AFT OF THE FUEL INJECTOR BY THE INTAKE VALVE AND WAS LEAKING FUEL. THIS CYLINDER, THECYLINDER HEAD WAS MFG WITH THE METAL THICKNESS AROUND THE INTAKE VALVE AREA TOO THIN. HAVE HAD OVER 250 FAILURES OF THESE MFG CYLINDER
- [SDR XGN2011F00004](https://openairdocs.org/sdr/XGN2011F00004.md): Cylinder Head · cracked · Jan 18, 2011 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > NR 4 CYLINDER CRACKED BETWEEN THE FINS AFT OF THE FUEL INJECTOR BY THE INTAKE VALVE AND WAS LEAKING FUEL. THIS CYLINDER, THECYLINDER HEAD WAS MFG WITH THE METAL THICKNESS AROUND THE INTAKE VALVE AREA TOO THIN. HAVE HAD OVER 250 FAILURES OF THESE MFG CYLINDER
- [SDR XGN2011F00003](https://openairdocs.org/sdr/XGN2011F00003.md): Cylinder · cracked · Jan 18, 2011 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > NR 1 CYLINDER CRACKED BETWEEN THE FINS AFT OF THE FUEL INJECTOR BY THE INTAKE VALVE AND WAS LEAKING FUEL. THIS CYLINDER THAT THE CYLINDER HEAD WAS MFG WITH THE METAL THICKNESS AROUND THE INTAKE VALVE AREA TOO THIN. WE HAVE HAD OVER 250 FAILURES OF THESE MFG
- [SDR XGNA2011F00002](https://openairdocs.org/sdr/XGNA2011F00002.md): Cylinder · cracked · Jan 18, 2011 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > NR 2 CYLINDER CRACKED BETWEEN THE FINS AFT OF THE FUEL INJECTOR BY THE INTAKE VALVE AND WAS LEAKING FUEL. THIS CYLINDER THAT THE CYLINDER HEAD WAS MFG WITH THE METAL THICKNESS AROUND THE INTAKE VALVE AREA TOO THIN. WE HAVE HAD OVER 250 FAILURES OF THE MFG CY
- [SDR XGNA2011F00001](https://openairdocs.org/sdr/XGNA2011F00001.md): Cylinder · cracked · Jan 18, 2011 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > NR 4 CYLINDER CACKED BETWEEN THE FINS AFT OF THE FUEL INJECTOR BY THE INTAKE VALVE AND WAS LEAKING FUEL. THIS CYLINDER THAT THE CYLINDER HEAD WAS MFG WITH THE METAL THICKNESS AROUND THE INTAKE VALVE AREA TOO THIN. WE HAVE HAD OVER 250 FAILURES OF THESE MFG C
- [SDR XGN2008F00012](https://openairdocs.org/sdr/XGN2008F00012.md): Cylinder · cracked · Aug 1, 2008 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > REV 3, E=SERIES CYLINDER, CRACKED. (K)
- [SDR XGN2008F00010](https://openairdocs.org/sdr/XGN2008F00010.md): Cylinder · cracked · Jul 23, 2008 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CRACKED BETWEEN FIN NR 1 AND FIN NR 3, AFT OF THE INJECTOR. MFG REV 3 E SERIES CYLINDER. ALL DEFECTIVE! (K)
- [SDR 2007FA0001027](https://openairdocs.org/sdr/2007FA0001027.md): Cylinder Head · cracked · Nov 8, 2007 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CRACKED CYL HEAD BEHIND INJECTOR BETWEEN FIN NR 1, NR 3. (K)
- [SDR 2007FA0001026](https://openairdocs.org/sdr/2007FA0001026.md): Cylinder Head · cracked · Nov 8, 2007 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CRACKED CYLINDER HEAD BEHIND INJECTOR BETWEEN FIN NR 1, NR 3. DEFECT IN MFG PROCESS. (K)
- [SDR 2007FA0001025](https://openairdocs.org/sdr/2007FA0001025.md): Cylinder Head · cracked · Nov 8, 2007 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CRACKED CYLINDER HEAD BEHIND INJECTOR BETWEEN FIN NR 1, NR 3. DEFECT IN MFG PROCESS. (K)
- [SDR 2007FA0001024](https://openairdocs.org/sdr/2007FA0001024.md): Cylinder Head · cracked · Nov 8, 2007 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CRACKED CYLINDER HEAD BEHIND INJECTOR BETWEEN FIN NR1, NR3. DEFECT IN MFG PROCESS. (K)
- [SDR 2007FA0001028](https://openairdocs.org/sdr/2007FA0001028.md): Cylinder Head · cracked · Nov 7, 2007 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CRACKED CYLINDER HEAD BEHIND INJECTOR BETWEEN FIN NR1, NR3. DEFECT IN MFG PROCESS. (K)
- [SDR XGN2007F00010](https://openairdocs.org/sdr/XGN2007F00010.md): Cylinder · cracked · Dec 26, 2006 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CRACKED CYLINDER HEAD. (K)
- [SDR XGN2007F00000](https://openairdocs.org/sdr/XGN2007F00000.md): Cylinder Head · cracked · Dec 26, 2006 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CRACKED CYLINDER HEAD. (K)
- [SDR XGN2006F00058](https://openairdocs.org/sdr/XGN2006F00058.md): Cylinder · cracked · Mar 3, 2006 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00030](https://openairdocs.org/sdr/XGN2006F00030.md): Cylinder · cracked · Mar 3, 2006 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2005F00001](https://openairdocs.org/sdr/XGN2005F00001.md): Cylinder Head · cracked · May 4, 2005 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > THIS CYLINDER WAS INSTALLED AS A SERVICEABLE CYLINDER 135.5 HOURS AGO. THE CRACK WAS FOUND DURING A 100 HR INSPECTION COMPRESSION CHECK. (K)
- [SDR XGN2006F00028](https://openairdocs.org/sdr/XGN2006F00028.md): Cylinder · cracked · Apr 4, 2005 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00029](https://openairdocs.org/sdr/XGN2006F00029.md): Cylinder · cracked · Feb 8, 2005 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00027](https://openairdocs.org/sdr/XGN2006F00027.md): Cylinder · cracked · Dec 21, 2004 · N4165G · Cessna 402B · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2004F00002](https://openairdocs.org/sdr/XGN2004F00002.md): Safety Switch · inoperative · Jan 22, 2004 · N4165G · Cessna 402B · Landing Gear Position and Warning
  > NOSE GEAR LIGHT WOULD NOT ILLUMINATE AND THE GEAR WARNING HORN WAS GOING OFF ON APPROACH. PILOT DID A FLY BY THE TOWER TO VERIFY NOSE GEAR DOWN. AIRCRAFT LANDED WITHOUT INCIDENCES AND NOSE GEAR LIGHT ILLUMINATED AFTER TOUCH DOWN AND GEAR WARNING HORN ALSO SH

## 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 = 'N4165G' AND deregistration_id = 'N4165G-2026-07-21'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N4165G-2026-07-21/reports

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