# Service difficulty reports: N31DB, cancelled Sep 30, 2023

A list on [N31DB, cancelled Sep 30, 2023](https://openairdocs.org/deregistered/N31DB-2023-09-30.md).

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

- [SDR XGNA2020102600008](https://openairdocs.org/sdr/XGNA2020102600008.md): Indication Sys · malfunctioned · Oct 26, 2020 · N31DB · Cessna 401 · Fuel Indicating System
  > ON TAKE OFF CLIMB OUT AT EDC THE PILOT OF FLIGHT GTX336 THOUGHT HE OBSERVED ERRONEOUS FUEL FLOW INDICATIONS ON THE RIGHT FUEL FLOW GAUGE. HE DID NOT DECLARE AN EMERGENCY, BUT REQUESTED RTB AS A PRECAUTION. HE STATED BOTH ENGINES WERE RUNNING. ONCE ON THE GR
- [SDR XGN2012F00001](https://openairdocs.org/sdr/XGN2012F00001.md): Engine · damaged · Jun 18, 2012 · N31DB · Cessna 401 · Engine (Reciprocating)
  > PILOT REPORTED LOSING OIL PRESSURE ON THE LEFT ENGINE IN CRUISE FLIGHT. THE ENGINE WAS SHUT DOWN IN FLIGHT TO PREVENT DAMAGE. REMOVAL OF THE OIL FILTER AND ITS INSPECTION SHOWED METAL CONTAMINATION IN THE FILTER. THE ENGINE WAS REMOVED FROM SERVICE.
- [SDR XGN2011F00000](https://openairdocs.org/sdr/XGN2011F00000.md): Spring · broken · Dec 30, 2010 · N31DB · Cessna 401 · Landing Gear Position and Warning
  > LANDING GEAR WOULD NOT RETRACT. FOUND SAFETY SWITCH SPRING BROKEN AND LEVER ACTUATOR TEETH WORN OUT.
- [SDR XGN2006F00014](https://openairdocs.org/sdr/XGN2006F00014.md): Cylinder · cracked · May 23, 2006 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00013](https://openairdocs.org/sdr/XGN2006F00013.md): Cylinder · cracked · May 23, 2006 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEAD CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00015](https://openairdocs.org/sdr/XGN2006F00015.md): Cylinder · cracked · Mar 30, 2006 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2005F00007](https://openairdocs.org/sdr/XGN2005F00007.md): Cylinder · cracked · Jun 14, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > THIS CYLINDER WAS IN THE NR 6 POSITION AND IS A TYPE (A) HEAD. THIS CRACKED CYLINDER HEAD WAS FOUND AT THE 50 HOUR INSPECTION. WE ARE FINDING SIGNS OF AIR LEAKAGE ON THE EXHAUST SIDE OF THE CYLINDER HEAD WHEN DOING A COMPRESSION CHECK. WE ARE SPRAYING SOAPY
- [SDR XGN2006F00019](https://openairdocs.org/sdr/XGN2006F00019.md): Cylinder · cracked · May 20, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00062](https://openairdocs.org/sdr/XGN2006F00062.md): Cylinder · cracked · May 6, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00061](https://openairdocs.org/sdr/XGN2006F00061.md): Cylinder · cracked · May 6, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00018](https://openairdocs.org/sdr/XGN2006F00018.md): Cylinder · cracked · May 6, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00017](https://openairdocs.org/sdr/XGN2006F00017.md): Cylinder · cracked · May 6, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00066](https://openairdocs.org/sdr/XGN2006F00066.md): Cylinder · cracked · Mar 30, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00065](https://openairdocs.org/sdr/XGN2006F00065.md): Cylinder · cracked · Mar 30, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00016](https://openairdocs.org/sdr/XGN2006F00016.md): Cylinder · cracked · Mar 30, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00064](https://openairdocs.org/sdr/XGN2006F00064.md): Cylinder · cracked · Mar 3, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR XGN2006F00063](https://openairdocs.org/sdr/XGN2006F00063.md): Cylinder · cracked · Mar 3, 2005 · N31DB · Cessna 401 · Reciprocating Engine Cylinder Section
  > CYLINDER HEADS CRACKED IN THE EXHAUST PORT AREA. (K)
- [SDR 20010322CW007](https://openairdocs.org/sdr/20010322CW007.md): Safety Switch · inoperative · Jan 15, 2001 · N31DB · Cessna 401 · Landing Gear Position and Warning
  > LANDING GEAR DOWN LIGHT DID NOT ILLUMINATE. SWITCH ACCT LEAF WAS BROKEN.
- [SDR 97ZZZX4887](https://openairdocs.org/sdr/97ZZZX4887.md): Pulley · failed · Oct 10, 1997 · N31DB · Cessna 401 · Trailing Edge Flap Control System
  > ON 100-HOUR INPSPECTION, FOUND FLAP PULLEY ON ACTUATOR CABLE (RETURN CABLE) UNDER AND AFT OF BATTERY BOX FAILED. CENTER BEARING HAD FROZEN DUE TO BATTERY ACID LEAKING FROM BROKEN DRAIN LINE. WHEN BEARING FROZE, IT BROKE LOOSE FROM PULLEY AND PULLEY WAS ROTAT

## 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 = 'N31DB' AND deregistration_id = 'N31DB-2023-09-30'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N31DB-2023-09-30/reports

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