- Date
- May 26, 2017, 13:15 local (20:15 UTC)
- Place
- Maxwell, CA
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N6674KGrumman Acft ENG Cor-Schweizer G-164
- Defining event
- Maneuvering-low-alt flying: Fuel exhaustion
- Weather
- Visual (VMC) · Day
- Status
- Completed · report August 3, 2017
- Report
- Approved by Office Director
- NTSB office
- General Aviation Accidents
- Parties
- FAA/ FSDO
- FAA report
- 20170526007849A
- Case key
- 95245
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
The pilot's failure to visually check the fuel quantity during the preflight inspection and ensure that sufficient fuel was onboard for the flight, which resulted in a total loss of engine power due to fuel exhaustion.
Findings · 5
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot reported that, a few minutes after takeoff for an agricultural application flight, while maneuvering to a field he intended to spray, the engine lost power and that he then attempted to land on a dirt road. He added that the airplane bounced on touchdown and "went off the road and struck a ditch." He further added that when the engine lost power, the fuel gauge indicated about half full. Postaccident, the pilot reported that the fuel gauge was "stuck in the middle," that he did not visually check the fuel quantity before flight, and that he had exhausted the fuel supply. The fuselage and both wings sustained substantial damage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The Federal Aviation Administration Pilot's Handbook of Aeronautical Knowledge stated, in part: Fuel Gauges The fuel quantity gauges indicate the amount of fuel measured by a sensing unit in each fuel tank and is displayed in gallons or pounds. Aircraft certification rules require accuracy in fuel gauges only when they read "empty." Any reading other than "empty" should be verified. Do not depend solely on the accuracy of the fuel quantity gauges. Always visually check the fuel level in each tank during the preflight inspection, and then compare it with the corresponding fuel quantity indication.
Factual narrative
The pilot reported that a few minutes after takeoff during an aerial application flight, while maneuvering to a field he intended to spray, the engine lost power and he attempted to land on a dirt road. He added that the airplane bounced on touchdown and "went off the road and struck a ditch." He further added that when the engine lost power, the fuel gauge indicated about half full. Postaccident, the pilot reported that the fuel gauge was "stuck in the middle", he did not visually check the fuel quantity prior to flight, and had exhausted the fuel supply. The fuselage and both wings sustained substantial damage. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The Federal Aviation Administration Pilot's Handbook of Aeronautical Knowledge stated in part: Fuel Gauges The fuel quantity gauges indicate the amount of fuel measured by a sensing unit in each fuel tank and is displayed in gallons or pounds. Aircraft certification rules require accuracy in fuel gauges only when they read "empty." Any reading other than "empty" should be verified. Do not depend solely on the accuracy of the fuel quantity gauges. Always visually check the fuel level in each tank during the preflight inspection, and then compare it with the corresponding fuel quantity indication.
Aircraft
- Registration
- N6674K
- Reported as
- Grumman Acft ENG Cor-Schweizer G-164 (C)
- Category
- Airplane
- Serial number
- 16C
- Built
- 1978
- Airframe hours
- 10,113.9
- Engine
- Honeywell TPE-331-6-5AM, 1,000 horsepower, turbo prop
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Richter Aviation Inc
- Registered owner
- Richter Aviation Inc
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · April 7, 2017
- Departed
- Develan, CA
- Destination
- Develan, CA
- Equipment
- None
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
- 55
- Injuries
- Serious
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Waiver time limited special
- Last flight review
- April 29, 2016
- Seat
- Single
- Restraint
- 4-point
- Flight hours
- 7,170.7 total · 3,485 in this make and model · 7,116.5 as pilot in command · 205 in the last 90 days · 205 in the last 30 days · 0 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 84 °F
- Observed at
- NONE
Docket · 5
The files NTSB released with the investigation on July 13, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 8.3 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N6674K · 3
Matched to the same aircraft by N-number and date.