# NTSB NYC93LA095: Macphee RV6, N726WM, Farmingdale, NJ, April 30, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 30, 1993, 11:45 local (15:45 UTC)
- Place: Farmingdale, NJ
- Location: 40.1868° N, 74.1246° W: Placed by OpenAirDocs at MONMOUTH EXEC (BLM), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.1868&lon=-74.1246&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 19, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 37320
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC93LA095
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/37320/pdf
- Page: https://openairdocs.org/ntsb/NYC93LA095

## Probable cause

THE PILOT'S IMPROPER STARTING PROCEDURE, WHICH CAUSED THE AIRPLANE TO NOSE DOWN.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Nose down, standing - starting engine(s)
  - starting procedure - improper, pilot in command (cause)
  - throttle/power control - improper, pilot in command (cause)

## Analysis

THE PILOT WAS STARTING THE ENGINE TO PREPARE FOR FLIGHT.  HE PLACED THE THROTTLE IN THE FULL FORWARD POSITION DURING THE START ATTEMPT.  THE ENGINE STARTED AND BECAUSE THE THROTTLE WAS STILL IN THE FORWARD POSITION, IT DEVELOPED HIGH POWER.  THE AIRPLANE LURCHED FORWARD AND THE PROPELLER STRUCK THE RAMP.  AFTER THIS OCCURRED, THE TAIL 'SLAMMED' ONTO THE TAILWHEEL AND DAMAGED THE FUSELAGE.

## Aircraft

- Registration: [N726WM](https://openairdocs.org/deregistered/N726WM-2013-08-22), registration cancelled 2013-08-22, S/N 20246 (OpenAirDocs)
- Reported make and model: MACPHEE RV6
- Registry model: [Macphee William T RV-6](https://openairdocs.org/model/macphee-william-t-rv-6) (registry code 05608NN) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 20246
- Airframe hours: 76
- Engines: LYCOMING O-360-A3A 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: William T. Macphee
- Registered owner: William T. Macphee
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Continuous airworthiness, April 25, 1993, 3 hours before
- Departed: BLM
- Destination: BLM
- Airport: BLM, Allaire

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 71; airline transport, commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: right; flight hours: 3,000 total, 75 in this make and model, 2,787 as pilot in command, 22 in the last 90 days, 7 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 64 °F

## Other investigations on N726WM (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 SEA95LA224](https://openairdocs.org/ntsb/SEA95LA224), Sep 23, 1995: Macphee Vans RV-6 (N726WM), Jacksonville, OR, destroyed, 1 fatal. Probable cause: the pilot-in-command's failure to maintain altitude and/or clearance from surrounding terrain after a low pass. The mountainous terrain was a factor.

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.

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