# SDR CA110630001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 29, 2011
- Submitted: September 9, 2011
- Operation: General aviation
- Make and model: Diamon DA 40
- Registry model: [Diamon DA 40](https://openairdocs.org/model/diamond-aircraft-ind-da-40) (OpenAirDocs)
- Aircraft time: 857 hours
- Engine: Lyc IO360M1A
- Propeller: Hartzl HCC2YR1
- System (JASC): [3411 · Pitot/Static System](https://openairdocs.org/jasc/3411)
- Part: Pitot Head
- Condition: Obstructed
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA110630001

## Discrepancy

AUTOPILOT ALTITUDE HOLD FUNCTION WAS NOT WORKING PROPERLY.  FOUND BOTH KAP 140 EXTERNAL STATIC PORTS BLOCKED.  CLEANED PORTS IAW WI-0SB-40-050, STEP 9 USING A 1.5 MM DRILL BIT THROUGH FUSELAGE SHELL FROM INSIDE TO OUTSIDE (BOTH STATIC PORTS).  ALSO FOUND ORFICE PN D60-3413-01-00 PLUGGED, CLEANED PLUG AND RAMP TESTED SERVICEABLE.  CUSTOMER REPORTED THAT FLIGHT CHECK WAS PERFORMED SATISFACTORY.

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