LAX97LA298

NTSB accident investigation · Beech H35 · Vacaville, CA · August 22, 1997

Accident · No injuriesLimited investigationFinal report
Date
August 21, 1997, 17:05 local (Aug 22, 1997, 00:05 UTC)
Place
Vacaville, CA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N4689DBeech H35
Weather
Visual (VMC) · Day
Status
Completed · report July 23, 1999
Report
Approved by Office Director
FAA report
19970821023219A
Case key
29881

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

The pilot's mismanagement of the fuel supply which resulted in fuel starvation. A contributing factor was inoperative fuel gauges.

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 - downwind
Fluid,fuel - starvationCause
Engine instruments,fuel quantity gage - inoperativeFactor
Fuel management - inadequatePilot in commandCause
In flight collision with terrain/waterEmergency descent/landing

Analysis

The pilot reported that the aircraft fuel gauges always read 'full,' so he checked his fuel visually and timed each tank. He stated that he took off with 38 gallons of fuel, with the fuel selector on the left tank, and switched to the right tank about 18 nautical miles from his final destination. While entering the traffic pattern, he heard a 'funny noise.' The pilot reported that he put the throttle forward but the engine didn't seem to respond. He retracted the flaps and turned for the runway. The aircraft crashed in a field approximately 1/4 mile from the end of the runway. The pilot reported to the police officer who responded to the site that he 'blew it and ran out of gas.' An FAA inspector examined the aircraft. The fuel selector was in the 'off' position and fuel was present at the carburetor inlet when the line was removed. The fuel was drained from the aircraft. The right tip tank was empty, but had been damaged in the accident; the right auxiliary tank held about 9 gallons, and the right main tank held about 14 gallons. The left tip tank held about 2 gallons; the left auxiliary tank held 6.5 gallons, and the left main tank held about 3/4 gallon. The inspector stated that the engine was examined and no mechanical problems were found. The aircraft Pilot's Operating Handbook states that the carburetor returns about 3 gallons per hour of excess fuel. Fuel return lines are routed through the selector valve to the left main cell. The auxiliary cells and right main cell return fuel to the left main cell only.

Factual narrative

On August 21, 1997, about 1705 hours Pacific daylight time, a Beech H35, N4689D, collided with terrain after a loss of engine power in the airport traffic pattern at the Nut Tree Airport, Vacaville, California. The airplane was substantially damaged. The certificated private pilot and passenger were not injured. The airplane was being operated as a business flight by the pilot/owner under 14 CFR Part 91 when the accident occurred. The flight originated in Ukiah, California, at 1600. Visual meteorological conditions prevailed at the time and no flight plan was filed.

The pilot reported that he took off with 38 gallons of fuel, with the fuel selector on the left tank. He stated that the fuel gauges in the aircraft always read "full," so he checked his fuel visually and timed each tank. He switched the fuel selector to the right tank about 18 nautical miles from Nut Tree Airport. While entering right traffic for runway 20, he put the landing gear and 10 degrees of flaps down and heard a "funny noise." The pilot reported that he put the throttle forward but the engine didn't seem to respond. He retracted the flaps and turned for the runway. The aircraft crashed in a field approximately 1/4 mile from the end of runway 20. The propeller was bent and the landing gear sheared off. The pilot reported to the police officer that responded to the site that he "blew it and ran out of gas."

A Federal Aviation Administration inspector from the Sacramento Flight Standards District Office responded to the accident site. He reported that preliminary inspection of the aircraft revealed that the fuel selector was in the "off" position and fuel was present at the carburetor inlet when the line was removed.

The inspector further reported that the fuel was drained from the aircraft. The right tip tank was empty, but had been damaged in the accident, the right auxiliary tank held about 9 gallons, and the right main tank held about 14 gallons. The left tip tank held about 2 gallons; the left auxiliary tank held 6.5 gallons, and the left main tank held about 3/4 gallon. The engine rotated normally and thumb compression was verified in all six cylinders. The inspector reported that he did not notice any restriction of the induction air path to the engine. He stated that he inspected the top spark plugs from all six cylinders and found that they displayed normal wear patterns. The engine oil was full. The hand operated fuel pump and fuel selector operated normally. Both magnetos sparked electrodes when rotated by hand. The engine driven fuel pump pumped liquid normally when rotated by hand. There was no water contamination present in the fuel that was drained from the aircraft.

The Pilot's Operating Handbook for aircraft serial no. D4874 was reviewed and relevant portions are appended to this file. The handbook states that the carburetor returns about 3 gallons per hour of excess fuel. Fuel return lines are routed through the selector valve to the left main cell. The auxiliary cells and right main cell return fuel to the left main cell only.

Aircraft

Registration
N4689D
Reported as
Beech H35
Category
Airplane
Serial number
D4874
Airframe hours
4,932
Engine
Continental O-470-G, 240 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Steve Rhodes
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 1, 1997 · 13 hours before
Departed
UKI · Ukiah, CA
Destination
O45
Airport
O45 · Nut Tree, runway 20, 3,800 × 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
38
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
185 total · 88 in this make and model · 114 as pilot in command · 3 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 7 knots
Visibility
25 statute miles
Lowest ceiling
None
Temperature
90 °F, dew point 55 °F
Altimeter
29.00 inHg
Observed at
SUU, 7 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.

Other investigations on N4689D · 1

Matched to the same aircraft by N-number and date.