FTW94LA161

NTSB accident investigation · Cessna 150J · Del Rio, TX · May 14, 1994

Accident · No injuriesLimited investigationFinal report
Date
May 14, 1994, 12:30 local (17:30 UTC)
Place
Del Rio, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N51150Cessna 150J
Weather
Visual (VMC) · Day
Status
Completed · report November 18, 1994
Report
Approved by Office Director
FAA report
19940514010829A
Case key
19057

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

Fuel exhaustion induced power loss due to the pilot's inaccurate fuel consumption calculations. The lack of suitable terrain for the forced landing 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
Fluid,fuel - exhaustionCause
Fuel consumption calculations - inaccuratePilot in commandCause
Forced landingDescent - emergency
In flight collision with objectDescent - emergency
Terrain condition - none suitable
Object - tree(s)
In flight collision with terrain/waterDescent - emergency

Analysis

The flight originally departed with 26 gallons of fuel. Based on his fuel consumption calculations, the pilot added 5 gallons of fuel during an en route stop. Total fuel of 31 gallons minus the unusable fuel of 3.5 gallons would leave 27.5 gallons usable for the entire trip. The total time on the hobbs meter was 4.8 hours. This included 3 takeoffs and landings. FAA calculations indicated the pilot needed 28.8 gallons of fuel to make the trip. The pilot rated passenger, who had 1.7 hours of time in this make and model of airplane, assumed control of the airplane because the only suitable terrain apparent to the pilots was behind and to the right of the airplane. They did not have sufficient altitude to reach the field. The airplane collided with several trees and a fence during the forced landing.

Factual narrative

On May 14, 1994, at 1230 central daylight time, a Cessna 150J, N51150, sustained substantial damage during a forced landing near Del Rio, Texas. The commercial pilot and a pilot rated passenger were not injured. Visual meteorological conditions prevailed for the personal cross country flight.

The pilot reported in his enclosed pilot/operator report that the flight departed with full fuel from Del Rio, Texas, on May 13, 1994, and flew a 2 hour trip to Fort Stockton, Texas. The next morning a 40 minute trip was made to Alpine, Texas, where 5 gallons of fuel was added for the return flight to Del Rio, Texas. The pilot further reported that each leg of the trip was flown at 6,500 feet MSL and a 2,500 RPM setting with a calculated fuel burn of 5 gallons per hour. During the cruise descent, at approximately 3 to 5 miles from the destination airport, a total loss of engine power occurred. The pilot selected a field behind and to the right of the airplane's flight path. Due to his better view of the field, the pilot rated passenger in the right seat manipulated the controls from 600 feet above the ground during the emergency. According to the pilot/operator report, he had 1.7 hours in this make and model airplane. The airplane impacted several trees and a fence prior to coming to rest adjacent to the field.

According to the enclosed mechanic statement, the total fuel recovered from the tanks was 2.5 gallons. The total time on the Hobbs meter for the trip was 4.8 hours. Manufacturer data indicates the fuel tank capacity as 26 gallons with 3.5 gallons as unusable fuel. The original departure with 26 gallons of fuel and the added five gallons of fuel gave a total of 31 gallons for the flight. Subtracting the 3.5 gallons of unusable fuel would leave 27.5 gallons usable fuel for the trip. Based on information from the pilot and the manufacturer, the Federal Aviation Administration (FAA) inspector (statement enclosed) calculated 28.8 gallons of usable fuel needed for the trip. In his pilot/operator report, the pilot-in-command stated a cruise fuel burn as 5 gph. The pilot rated passenger stated that according to their calculations refueling with 5 gallons of fuel should have given enough fuel for the return flight.

Aircraft

Registration
N51150
Reported as
Cessna 150J
Category
Airplane
Serial number
15069798
Airframe hours
3,566
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Mcirvin Aviation
Registered owner
Mcirvin, James R.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 26, 1994 · 38 hours before
Departed
E38 · Alpine, TX

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
29
Certificates
Private, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,850 total · 78 in this make and model · 1,010 as pilot in command · 130 in the last 90 days · 60 in the last 30 days · 7 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
20 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 68 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

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