SEA07CA099

NTSB accident investigation · Barnett MA-5 Charger · San Martin, CA · April 7, 2007

Accident · No injuriesData collectionFinal report
Date
April 7, 2007, 15:00 local (22:00 UTC)
Place
San Martin, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N20HDBarnett MA-5 Charger
Weather
Visual (VMC) · Day
Status
Completed · report June 27, 2007
Report
Approved by Office Director
FAA report
20070407005909A
Case key
65575

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

On this page

Probable cause

Carburetor icing conditions which resulted in a loss of engine power during the base turn to final approach. The pilot's inadequate preflight planning/preparation for the flight was a factor.

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 engine power(total) - nonmechanicalApproach - vfr pattern - base leg/base to final
Weather condition - carburetor icing conditionsCause
Preflight planning/preparation - inadequatePilot in commandFactor
Forced landingEmergency descent/landing
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - ground

Analysis

The pilot reported that he entered the pattern on left base for landing. During the turn from base to final approach, the aircraft was low so the pilot added power, however, the engine did not respond. The pilot realized that he would not make the runway and chose an open field for an off airport landing. During the landing roll, the pilot intentionally ground looped the aircraft to avoid a collision with a fence. The aircraft sustained substantial damage to the right landing gear attach fitting and longeron as well as the right wing tip. After the aircraft was recovered from the field and taken to the airport, the engine was started and found to run without anomaly on the main fuel tank. The pilot reported that after the accident he pulled up the weather current at the time of the accident and compared it to the probable carburetor icing chart, he noted that the temperature and dew point fell into the range of serious icing at glide power. The nearest weather reporting facility indicated a temperature of 70 degrees F. and a dew point of 55 degrees F.

Factual narrative

During a telephone interview and subsequent written statement, the pilot reported that he entered the pattern on left base for landing on runway 14. The pilot stated that he was low turning from base to final approach and added power, however, the engine did not respond. The pilot realized that he would not make the runway and chose an open field for an off airport landing. During the landing roll, the pilot intentionally ground looped the aircraft to avoid a collision with a fence. The aircraft sustained substantial damage to the right landing gear attach fitting and longeron as well as the right wing tip.

After the aircraft was recovered from the field and taken to the airport, the engine was started and found to run without anomaly on the main fuel tank.

During the telephone interview with the NTSB Investigator-In-Charge, the pilot stated that after the accident he had pulled up the weather current at the time of the accident and noted that the temperature and dew point fell into the range of serious icing at glide power. The nearest weather reporting facility located at Reid-Hillview (RHV), San Jose, California, was reporting at 1447 a temperature of 70 degrees F. and a dew point of 55 degrees F.

Aircraft

Registration
N20HD
Reported as
Barnett MA-5 Charger
Category
Airplane, amateur-built
Serial number
0103
Engine
Lycoming O-290G, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
James B. Dal Porto
Registered owner
James B. Dal Porto
Airworthiness certificate
Special, Experimental (Special)
Departed
KRHV · San Jose, CA
Destination
E16 · San Martin, CA
Airport
E16 · S. County Airport, runway 14, 3,100 × 75 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
50
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Flight hours
500 total · 200 in this make and model · 4 in the last 90 days · 4 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 10 knots
Visibility
7 statute miles
Lowest ceiling
20,000 ft overcast
Temperature
70 °F, dew point 54 °F
Observed at
RHV

FAA reports on this event · 1

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