# Accident 20060508007809A: Mckenz LANCAIRIVPTU, San Diego, CA, May 8, 2006

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: May 8, 2006, 12:30 local time
- Place: San Diego, CA
- Airport: Montgomery Field Airport
- Damage: Substantial damage
- Phase of flight: Roll-Out (Fixed Wing)
- Operating rules: General operating rules (Part 91)
- Location: 32.8156° N, 117.1439° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=32.8156&lon=-117.1439&mi=10
- Aircraft: N5M, a cancelled registration (https://openairdocs.org/deregistered/N5M-2025-03-27) (OpenAirDocs)
- Registry model: Mckenzie Greg LANCAIR IV-P TURBINE (registry code 056120N, https://openairdocs.org/model/mckenzie-greg-lancair-iv-p-turbine) (OpenAirDocs)
- Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs)
- Reported make and model: MCKENZ LANCAIRIVPTU
- Reported engine: WALTER M601*
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 1,700 total, 125 in this make and model, 20 in the last 90 days
- NTSB investigation: [NTSB LAX06LA166](https://openairdocs.org/ntsb/LAX06LA166) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20060508007809A

## Narrative

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

(-23) ON MAY 8, 2006, N5M, A LANCAIR IV-PT HOMEBUILT AIRCRAFT, EXPERIENCED A LEFT MAIN LANDING GEAR COLLAPSE AFTER LANDING AT MONTGOMERY FIELD, RUNWAY 28R, SAN DIEGO, CA. THE PILOT REPORTED THAT DURING THE APPROACH TO LANDING A TOTAL AIRCRAFT ELECTRICAL SYSTEM FAILURE OCCURRED, PROMPTING IMPLEMENTATION OF A BACKUP EMERGENCY BATTERY. THE PILOT STATED THE LEFT MAIN LANDING GEAR DOWN LIGHT WAS NOT ILLUMINATED AND THAT HE EXECUTED A TOWER FLY BY TO DETERMINE GEAR POSITION. TOWER PERSONNEL STATED THE GEAR POSITION LOOKED DOWN. THE PILOT AND PASSENGER WERE NOT INJURED, BUT THE AIRCRAFT WAS SUBSTANTIALLY DAMAGED. DURING THE POST ACCIDENT INTERVIEW, THE PILOT INDICATED THE AIRCRAFT WAS EQUIPPED WITH AN EMERGENCY LANDING GEAR EXTENSION SYTEM, HOWEVER HE STATED HE FAILED TO UTILIZE IT.

## 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 LAX06LA166](https://openairdocs.org/ntsb/LAX06LA166), May 8, 2006: McKenzie Lancair IV-P Turbine (N5M), San Diego, CA, substantial damage. Probable cause: The collapse of the left main gear for undetermined reasons. A factor was the pilot's inadequate remedial action in response to the left main gear not locked warning light by not attempting to…

## Other reports on N5M (1)

Matched to the same aircraft by N-number and date.

- [Accident 20121229028759A](https://openairdocs.org/incident/20121229028759A), Dec 29, 2012: Mckenzie Greg LANCAIR IV-P TURBINE (N5M), Santee, CA, Destroyed, 3 fatal. The pilot departed kmyf on a VFR flight. After departure the pilot flew into class b airspace without clearance. The kmyf ATCT handed the pilot off to socal…

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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