# Accident 20110602012399A: Piper PA-46-310P, Lake Havasu, AZ, June 2, 2011

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 2, 2011, 13:00 local time
- Place: Lake Havasu, AZ
- Airport: Lake Havasu City
- Damage: Minor damage
- Phase of flight: Landing: Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 34.5711° N, 114.3583° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=34.5711&lon=-114.3583&mi=10
- Aircraft: N712MK, registered now (https://openairdocs.org/aircraft/N712MK) (OpenAirDocs)
- Registry model: Piper PA-46-310P (registry code 7104605, https://openairdocs.org/model/piper-pa-46-310p) (OpenAirDocs)
- Registry engine: Pratt & Whitney PT6A series (registry code 52034, https://openairdocs.org/engine/pratt-whitney-pt6a-series) (OpenAirDocs)
- Reported make and model: PIPER PA-46-310P
- Reported engine: P&W PT6A SERIES
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport
- Pilot flight hours: 10,000 total, 825 in this make and model, 35 in the last 90 days
- NTSB investigation: [NTSB WPR11LA245](https://openairdocs.org/ntsb/WPR11LA245) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20110602012399A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON JUNE 2, 2011 AT APPROXIMATELY 1300 PST, N712MK, A PIPER MALIBU, PILOTED BY ^PRIVACY DATA OMITTED^, LANDED GEAR UP AT LAKE HAVASU AIRPORT (HII), LAKE HAVASU, ARIZONA.ACCORDING TO THE PILOT, AFTER DESCENDING INTO THE LOCAL TRAFFIC PATTERN AND SELECTING THE LANDING GEAR DOWN, THERE WAS NO RESPONSE FROM THE LANDING GEAR SYSTEM. THERE WERE NO GEAR INDICATIONS LIGHTS ILLUMINATED AND NO VISUAL OR AUDIO INIDICATIONS OF HYDRUALIC PUMP OPERATIONS FOLLOWING THE SELECTION OF THE GEAR LEVER.THE PILOT ATTEMPTED TO TROUBLE SHOOT THE PROBLEM WITHOUT SUCCESS.  THE PILOT USED THE AIRCRAFT EMERGENCY CHECKLIST AND ATTEMPTED TO PERFORM AN EMERGENCY GEAR EXTENSION. AFTER COMPLETING THE STEPS ON THE CHECKLIST, THE LANDING GEAR DID NOT FALL INTO PLACE AS DESIGNED. THE PILOT CONTINUED TO CIRCLE THE AIRPORT FOR APPROXIMATELY AN HOUR AND A HALF IN ORDER TO BURN OFF FUEL IN HOPES OF REDUCING ANY FIRE HAZARD. ON FINAL APPROACH TO THE RUNWAY, THE PILOT STATED HE SECURED THE CABIN, FEATHERED AND SHUT DOWN THE ENGINE AND ALL ELECTRICAL AND FUEL AND PERFORMED A GEAR UP LANDING ON RUNWAY 32.ON JUNE 28, THE AIRCRAFT WAS PLACED ON JACKS AND NORMAL AND EMERGENCY EXTENSION METHODS DID NOT WORK.  GEAR LOWERED BY BLEEDING PRESSURE OUT OF GEAR UP LINE FITTING ON THE NOSE GEAR SEQUENCE VALVE.  EMERGENCY GEAR RELEASE VALVE, P/N 85124-02, WAS MANUALLY OPERATED AT THE VALVE.  ITS CONTROL ARM WOULD ONLY MOVE ¼ INCH.  IT WOULD NOT PORT FLUID FROM THE GEAR DOWN LINE TO THE GEAR UP LINE, WHICH IS ITS REQUIRED FUNCTION TO ALLOW HYDRAULIC FLUID TO RETURN THROUGH THE UP LINE TO THE RESERVOIR AND ALLOWING GRAVITY TO EXTEND THE GEAR.  THE CAUSE OF THE FAILURE OF THE NORMAL GEAR EXTENSION SYSTEM IS UNDETERMINED AT THIS TIME AND IS STILL BEING INVESTIGATED.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR11LA245](https://openairdocs.org/ntsb/WPR11LA245), Jun 2, 2011: Piper PA-46-310P (N712MK), Lake Havasu, AZ, substantial damage. Probable cause: The failure of the low pressure switch in the normal landing gear system, which prevented normal operation of that system, and the misrigging of the emergency extension gear release valve, which…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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