SEA02LA047

NTSB accident investigation · Cessna 172N · Longmont, CO · March 3, 2002

Accident · No injuriesLimited investigationFinal report
Date
March 3, 2002, 11:00 local (18:00 UTC)
Place
Longmont, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5413JCessna 172N
Weather
Visual (VMC) · Day
Status
Completed · report February 25, 2003
Report
Approved by Office Director
Parties
FAA - Denver FSDO
FAA report
20020303003919A
Case key
54291

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

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

The student pilot's failure to maintain directional control during landing. Factors included the student pilot's lack of experience, an icy runway, and a mound of snow adjacent to the runway.

Analysis

The student pilot, who was flying solo at the time of the accident, reported that the landing runway was icy at the time of the landing. He reported that he attempted a soft field landing at 60 knots. He stated that he slowed to 30 knots, at which point the aircraft hit a patch of ice. He reported that the airplane skidded to the left, the nosewheel hit a large mound of snow, and the airplane flipped onto its back. The student pilot reported that no mechanical failure or malfunction was involved in the accident.

Factual narrative

On March 3, 2002, at 1100 mountain standard time, a Cessna 172N, N5413J, sustained substantial damage when it went off the side of runway 29 and flipped over during landing at Vance Brand Airport (2V2) in Longmont, Colorado. The student pilot, the solo occupant, was not injured. The aircraft was registered to a private owner and was being operated by Flatirons Aviation of Boulder, Colorado, on a visual flight rules (VFR) instructional flight under the provisions of Title 14 CFR Part 91. Visual meteorological conditions prevailed, and no flight plan was filed for the flight. The flight departed Boulder Municipal Airport (1V5), Boulder, Colorado, about 1040.

The student reported that the runway was icy at the time of the landing. He reported that he attempted a soft field landing at 60 knots. He stated that he slowed to 30 knots, at which point the aircraft hit a patch of ice. He reported that the airplane skidded to the left, the nosewheel hit a large mound of snow, and the airplane flipped onto its back. The student pilot reported that no mechanical failure or malfunction was involved in the accident. The student pilot reported in his narrative of the accident that he had a 10-knot tailwind, but reported in the weather data blocks on his NTSB pilot accident report that winds were from 290 degrees at 10 knots (he also filled in 10 knots in the "Gusts" weather data block.) The student reported a temperature of 40 degrees F at the time of the accident on his NTSB accident report. At 1045, Jeffco Airport in Broomfield, Colorado, reported a temperature of -4 degrees C (25 degrees F) and variable winds at 3 knots.

According to the U.S. Government Airport/Facility Directory (A/FD), Vance Brand Airport runway 29 is a 4,800-foot by 75-foot concrete runway.

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 control - on ground/waterLanding - roll
Lack of experiencePilot in commandFactor
Airport facilities,runway/landing area condition - icyFactor
Directional control - not maintainedPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - snowbankFactor
Nose overLanding - roll

Aircraft

Registration
N5413J
Reported as
Cessna 172N
Category
Airplane
Serial number
17273784
Engine
Lycoming O-320, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Flatirons Aviation
Registered owner
Carl E. Lawrence
Airworthiness certificate
Standard, Normal; Standard, Utility
Departed
1V5 · Boulder, CO
Destination
2V2 · Longmont, CO
Airport
2V2 · Vance Brand, runway 29, 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
Student pilot
Age
37
Injuries
None
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
38 total · 34 in this make and model · 10 as pilot in command · 38 in the last 90 days · 8 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 10 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
39 °F

Docket · 2

The files NTSB released with the investigation on November 15, 2002, on NTSB’s docket system: statements, records, photos and specialists’ reports. 370 KB in all.

FAA reports on this event · 1

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