DEN00LA137

NTSB accident investigation · Mooney M20C · Longmont, CO · July 22, 2000

Accident · No injuriesLimited investigationFinal report
Date
July 22, 2000, 08:30 local (14:30 UTC)
Place
Longmont, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N6253UMooney M20C
Weather
Visual (VMC) · Day
Status
Completed · report January 18, 2001
Report
Approved by Office Director
FAA report
20000722012889A
Case key
49788

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 improper fuel tank selector position resulting in fuel starvation and the ditch impacted during the landing roll. A contributing factor was the pilot's failure to follow published procedures and directives.

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) - nonmechanicalClimb
Fluid,fuel - starvation
Fuel tank selector position - improperPilot in commandCause
Procedures/directives - not followedPilot in commandFactor
Forced landingEmergency descent/landing
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - ditchCause

Analysis

After 45 minutes of flight, while conducting touch-and-go landings on a local area personal flight, a total loss of power occurred during climb following a touch-and-go landing. The student pilot attempted to turn back and land the aircraft in the opposite direction on the runway he had departed. He was unable to make it to the runway and landed in a field where the aircraft struck a ditch during landing roll causing substantial damage. The pilot stated the engine quit due to fuel starvation, and investigation verified that the fuel tank selected contained no usable fuel. The aircraft fuel capacity was 75.6 usable gallons and the flight departed with an estimated 25 gallons on board. Review of the pilot's operating handbook for the airplane provided information that the pilot's handbook gave specific preflight and procedural guidance to pilots to verify fuel on board prior to departure and to ensure that critical regimes of flight (landing and takeoff) were conducted on the fullest tank. The student pilot had 65 hours total flight time and 61 hours in the accident aircraft make and model.

Factual narrative

On July 22, 2000, at 0830 mountain daylight time, a Mooney M20C, N6253U, made a forced landing in a field near the airport at Longmont, Colorado, when the engine lost all power. The student pilot and his passenger were not injured and the aircraft sustained substantial damage. Visual meteorological conditions prevailed for this personal flight operating under Title 14 CFR Part 91. The flight originated at Jefferson County Airport, Broomfield, Colorado, at 0745. No flight plan was filed.

According to the pilot, he was conducting touch-and-go landings on runway 29 at Vance Brand Municipal Airport. At about 1,000 feet above ground level on climb out following a touch-and-go landing, the engine lost all power. The pilot said he attempted to return for landing on the opposite runway (11), and when he realized he could not make the runway he conducted an off field landing. During landing roll, the nose landing gear struck a ditch. The impact caused damage to the nose landing gear, engine firewall, and right wing.

The pilot stated that he did not change the fuel selector to the fullest tank prior to commencing the approach, and the aircraft suffered fuel starvation. Investigation verified that the fuel tank selected was empty of useable fuel.

According to the pilot's operating handbook for the aircraft:

1. The accident aircraft make and model has a total fuel capacity of 78.6 U. S. gallons, 75.6 of which is useable fuel. The fuel distribution is in two internal wing tanks that have a capacity of 39.3 gallons each. Fuel consumption is approximately 15.3 gallons per hour at 5,000 feet above mean sea level on a standard day at maximum power.

2. The preflight portion of the handbook provides guidance to the pilot to check the fuel gauges and then visually check each of the two fuel tanks for proper quantity.

3. The operations section of the handbook provides guidance to the pilot to switch the fuel tank selector to the fullest tank prior to commencing an approach.

In his report on the accident, the pilot stated he had 25 gallons of fuel on board when he departed Jefferson County Airport 45 minutes prior to the accident. The distribution of that fuel is unknown.

According to the pilot, he was issued a private pilot certificate on May 27, 2000, and his medical certificate was a first class, without limitations, issued on June 10, 1998.

Federal Aviation Administration records provided information that the pilot had a student pilot certificate issued on September 9, 1999, and that his medical certificate was pending.

In the report submitted by the pilot, he stated he had 65.3 hours of flight experience, of which, 61.4 hours was in the accident aircraft make and model. He said he had 25 hours in the previous 90 days and 15 hours in the previous 30 days, all of which was in the accident aircraft make and model.

Aircraft

Registration
N6253U
Reported as
Mooney M20C
Category
Airplane
Serial number
2092
Airframe hours
8,358
Engine
Lycoming O-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Advantage Aviation, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 28, 2000 · 56 hours before
Departed
BJC · Broomfield, CO
Airport
2V2 · Vance Brand Municipal, runway 11, 4,800 × 75 ft, concrete

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
28
Certificate
Student
Medical
Unknown, Unknown
Seat
Left
Flight hours
65 total · 61 in this make and model · 30 as pilot in command · 25 in the last 90 days · 15 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
0° at 4 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 59 °F
Altimeter
30.00 inHg
Observed at
BJC, 30 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 N6253U · 1

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