- 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.
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.