ATL95LA027

NTSB accident investigation · Aero Commander 500S · Millington, TN · December 11, 1994

Accident · Minor injuriesLimited investigationFinal report
Date
December 11, 1994, 11:30 local (17:30 UTC)
Place
Millington, TN
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N9171NAero Commander 500S
Weather
Visual (VMC) · Day
Status
Completed · report July 31, 1995
Report
Approved by Office Director
FAA report
19941211047149A
Case key
3505

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 NTSB’s determination of the probable cause, and any contributing factors.

The pilot's inadequate preflight of the aircraft, in that he did not ensure that there was adequate fuel for the flight, which resulted in fuel exhaustion.

Analysis

The pilot reported that he was to fly the airplane to another airport for a periodic spar inspection, which would require draining the fuel tanks. He estimated that there were 70 gallons of fuel on board prior to departure. Due to the design of the fuel tanks, a visual inspection was not possible. During the approach to the destination airport, the right engine quit, followed by the left engine. The airplane was force landed in a flood plain. An examination of the wreckage revealed no significant amount of fuel in the fuel system.

Factual narrative

On December 11, 1994, at 1130 central standard time, an Aero Commander 500S, N9171N, made an emergency landing in the Loosahatchie River Flood Plain after the pilot experienced a loss of engine power on both engines near Millington, Tennessee. The flight operated under the provisions of 14 CFR Part 91 with no flight plan filed. Visual weather conditions prevailed at the time of the accident. The airplane sustained substantial damage, and the pilot received minor injuries. The flight departed Ripley, Mississippi, at 1100.

According to the pilot, the flight departed with an estimated 70 gallons of aviation fuel in the fuel system. He also stated that due to the design characteristics of the fuel system, a visual inspection of fuel quantity was not possible. The aircraft was being flown to Millington for a periodic spar inspection, which requires defueling of the wing fuel tanks. As the pilot entered the traffic pattern for the Charles Baker Airport, the right engine quit. The pilot turned away from the airport and selected another field. While maneuvering for the emergency landing, the left engine quit; an emergency landing was made to the wet area of the flood plain.

The engines were removed from the accident site by an airframe and powerplant mechanic. He reported that there was no significant amount of fuel in the aircraft fuel system, in the engine, or in the fuel lines to the engine.

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
All engines
Fluid,fuel - exhaustionCause
Aircraft preflight - inadequatePilot in commandCause
Forced landingDescent - emergency
In flight collision with terrain/waterDescent - emergency
Terrain condition - none suitable

Aircraft

Registration
N9171N
Reported as
Aero Commander 500S
Category
Airplane
Serial number
3119
Engine
Lycoming IO-540-E1B5, 290 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Tapp, Butch
Airworthiness certificate
Standard, Normal
Departed
25M · Ripley, MS
Destination
2M8 · TN
Airport
2M8 · Charles W. Baker, runway 36, 3,500 × 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
30
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
695 total · 120 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 7 knots
Visibility
20 statute miles
Lowest ceiling
None
Temperature
36 °F, dew point 21 °F
Altimeter
30.00 inHg
Observed at
MEM, 18 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.