LAX99LA269

NTSB accident investigation · Cessna 152 · Buckeye, AZ · August 14, 1999

Accident · No injuriesLimited investigationFinal report
Date
August 13, 1999, 19:14 local (Aug 14, 1999, 02:14 UTC)
Place
Buckeye, AZ
Injuries
2 uninjured
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N49100Cessna 152
Weather
Visual (VMC) · Day
Status
Completed · report August 14, 2001
Report
Approved by Office Director
FAA report
19990813012159A
Case key
47107

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 due to the pilot's inaccurate fuel consumption calculations used in flight planning.

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) - nonmechanicalDescent
Fluid,fuel - exhaustionCause
Fuel consumption calculations - inaccuratePilot in commandCause
Forced landingEmergency descent/landing
Terrain condition - rough/uneven
On ground/water collision with objectLanding - roll
Object - tree(s)
Nose overLanding - roll

Analysis

While inbound to his destination, the pilot reported that the engine began to miss. It resumed running a couple of times but finally stopped altogether. The pilot made a forced landing on a dirt road, damaging the aircraft. The aircraft was last serviced with 20.8 gallons of aviation fuel on the previous day. The pilot computed the fuel requirement for the flight by using the fuel consumption chart in the pilot operator's handbook. After a flight of 0.2 hours on the day before, the pilot estimated that he had 3 hours 55 minutes of fuel remaining (without reserve) for his cross-country flight. At the time the engine quit, the Hobbs meter showed that a total of 3 hours 36 minutes had elapsed. The average fuel consumption for the fuel load was 6.8 gallons per hour. The fuel capacity of the aircraft is 26 gallons with 1.5 gallons unusable. When asked about his planning, he acknowledged that his planning estimate of 6 gallons per hour had not considered the additional fuel requirements for his initial takeoff and climb, nor the seven other landings and takeoffs that he subsequently made since his last refueling. According to the POH performance charts, start, taxi, and takeoff requires 0.8-gallons of fuel. Aircraft retrieval personnel recovered less than 2 gallons of fuel from both of the main tanks and the fuel system was found to be intact. Safety Board investigators successfully started and ran the engine after the accident.

Factual narrative

On August 13, 1999, at 1914 hours mountain standard time, a Cessna 152, N49100, collided with ground obstructions during a forced landing near Buckeye, Arizona. The forced landing was precipitated by a total loss of engine power during cruise. The aircraft was destroyed; however, neither the pilot nor his pilot-rated passenger was injured. The aircraft was operated by Glendale Aviation under 14 CFR Part 91, and rented by the pilot for a personal cross-country flight. The flight originated in Lake Havasu City, Arizona, at 1645 on the afternoon of the accident. Visual meteorological conditions prevailed at the time and a VFR flight plan was filed.

The pilot reported that he was inbound to the Glendale, Arizona, airport at 2,000 feet msl when the engine began to miss. It resumed running a couple of times but finally stopped altogether. The pilot made a forced landing on a dirt road, striking a tree with the left wing, and finally nosing over as the aircraft stopped.

The aircraft was last serviced with 20.8 gallons of 100 octane low lead (LL) fuel on August 12, 1999, by the operator. The pilot told investigators that he had computed the fuel requirement for the flight by using the fuel consumption chart in the pilot operator's handbook (POH). After a flight of 0.2 hours on August 12, 1999, the pilot estimated that he had 3 hours 55 minutes of fuel remaining (without reserve) for his cross-country flight. At the time the engine quit, the Hobbs meter showed that a total of 3 hours 36 minutes had elapsed (1,790.6 out; 1,794.2 in). The average fuel consumption for the fuel load was 6.8 gallons per hour.

The fuel capacity of the aircraft is 26 gallons with 1.5 gallons unusable. When asked about his planning, the pilot acknowledged that his estimate of 6 gallons per hour had not considered the additional fuel requirements for his initial takeoff and climb, nor the seven other landings and takeoffs that he subsequently made since his last refueling. The POH performance charts specify that each start, taxi, and takeoff requires 0.8-gallons.

Aircraft retrieval personnel reported that the fuel system was intact and that they drained less than 2 gallons of fuel from both of the main tanks.

On August 20, 1999, Safety Board investigators successfully started and ran the engine at the operator's facility. All engine parameters were normal.

Aircraft

Registration
N49100
Reported as
Cessna 152
Category
Airplane
Serial number
15283418
Airframe hours
8,449
Engine
Lycoming O-235-L2C, 110 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Glendale Aviation LLC
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · August 10, 1999 · 10 hours before
Departed
LII · Lake Havasu Cit, AZ
Destination
GEU · Glendale, AZ
Flight plan
VFR

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
27
Certificate
Private
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
281 total · 62 in this make and model · 150 as pilot in command · 98 in the last 90 days · 62 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 4 knots
Visibility
10 statute miles
Lowest ceiling
25,000 ft broken
Temperature
102 °F, dew point 52 °F
Altimeter
29.00 inHg
Observed at
PHX, 40 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.