LAX93LA364

NTSB accident investigation · Mcinroy DER Jager DIX · Hesperia, CA · September 21, 1993

Accident · No injuriesLimited investigationFinal report
Date
September 21, 1993, 13:00 local (20:00 UTC)
Place
Hesperia, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N16RMMcinroy DER Jager DIX
Weather
Visual (VMC) · Day
Status
Completed · report August 1, 1994
Report
Approved by Office Director
FAA report
19930921035319A
Case key
28485

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Failure of the pilot to lean the aircraft's fuel mixture for the airport's density altitude.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightTakeoff - initial climb
Weather condition - high density altitudeFactor
Mixture - improper use ofPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - open field

Analysis

The pilot failed to lean the airplane's fuel mixture before takeoff. The airplane climbed to an altitude of 20 feet above the ground then settled to the ground and collided with the terrain.

Factual narrative

On September 21, 1993, at 1300 hours Pacific daylight time, an amateur built McInroy Der Jager DIX airplane, N16RM, collided with the terrain after experienceing an inflight loss of control shortly after departing Runway 21 at the Hesperia Airport, Hesperia, California. The airplane, registered to and operated by the pilot, was substantially damaged. The certificated private pilot was not injured. Visual meteorological conditions prevailed at the time. The flight was destined for Trona, California.

The pilot reported to the Federal Aviation Admnistration (FAA), Riverside Flight Standards District Office, that he had just refueled the airplane. He stated he failed to lean the fuel mixture for the airport's high density altitude. After departing runway 21, the airplane climbed to an altitude of 20 feet above the ground and then settled to the ground over an open field southwest of the airport.

The pilot indicated his total flight experience was about 3,000 hours of which 10 hours were in the accident airplane make and model.

Aircraft

Registration
N16RM
Reported as
Mcinroy DER Jager DIX (DER JAGER)
Category
Airplane, amateur-built
Serial number
165
Airframe hours
260
Engine
Lycoming O-235-C1, 115 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Ramer, Fred M.
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · September 18, 1993 · 1 hours before
Destination
L72 · Trona, CA
Airport
L26 · Hesperia, runway 21, 3,910 × 50 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
71
Certificate
Private
Airplane ratings
Single-engine land
Medical
Expired
Seat
Center
Flight hours
3,000 total · 10 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
70° at 5 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 37 °F
Altimeter
29.00 inHg
Observed at
RAL, 26 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.