DEN05LA104

NTSB accident investigation · Cessna 150L · Rocky Ford, CO · July 8, 2005

Accident · Minor injuriesLimited investigationFinal report
Date
July 8, 2005, 09:15 local (15:15 UTC)
Place
Rocky Ford, CO
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N6839GCessna 150L
Weather
Visual (VMC) · Day
Status
Completed · report December 20, 2005
Report
Approved by Office Director
Parties
FAA Flight Standards District Office
FAA report
20050708016819A
Case key
61863

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 pilot's misjudged distance/altitude. A contributing factor was the inadvertent flap retraction.

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.

UndershootApproach - vfr pattern - final approach
Distance/altitude - misjudgedPilot in commandCause
Raising of flaps - inadvertentPilot in commandFactor
Remedial action - attemptedPilot in command
Hard landingApproach - vfr pattern - final approach
Terrain condition - dirt bank/rising embankment

Analysis

The airplane had a history of uncommanded flap retraction, but an airworthiness inspector could find no anomalies. The pilot took off to practice touch-and-go landings. The first landing, using 20 degrees of flaps, was without incident. On the second landing approach, he used 30 degrees of flaps. The airplane began to settle and the pilot added full power and pulled aft on the control yoke. The airplane landed hard and short of the runway. The pilot closed the throttle. The airplane struck a dirt bank and nosed over. As the pilot climbed out, he noticed the flap indicator "was at about 2 degrees." In a later interview with an FAA inspector, the pilot said no discrepancies were found with the flap system and that it was likely he had inadvertently retracted the flaps.

Factual narrative

On June 8, 2005, approximately 0915 mountain daylight time, a Cessna 150L, N6839G, piloted by a private pilot, was substantially damaged when it impacted terrain during landing at a private airstrip near Rocky Ford, Colorado. Visual metrological conditions prevailed at the time of the accident. The local personal flight was being conducted under Title 14 CFR Part 91 without a flight plan. The pilot sustained minor injuries. The flight originated at this airstrip approximately 0900 mdt.

The pilot said the airplane had a history of uncommanded flap retraction, but an airworthiness inspector could find no abomalies. The pilot took off to practice touch-and-go landings. The first landing, using 20 degrees of flaps, was without incident. On the second landing approach, he used 30 degrees of flaps. The airplane began to settle and the pilot added full power and pulled aft on the control yoke. The airplane landed hard and short of the runway. The pilot closed the throttle. The airplane struck a dirt bank and nosed over. As the pilot climbed out, he noticed the flap indicator "was at about 2 degrees."

In a later interview with an FAA inspector, the pilot said no discrepancies were found with the flap system and that it was likely he had inadvertently retracted the flaps.

Aircraft

Registration
N6839G
Reported as
Cessna 150L
Category
Airplane
Serial number
15072339
Airframe hours
4,030.1
Engine
Continental O-200-A, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Fred Piatt Jr.
Airworthiness certificate
Standard, Utility
Last inspection
Annual · May 1, 2005 · 2.47 hours before
Departed
Rocky Ford, CO
Airport
UNK · Cottonwood, runway 27, 2,800 × 70 ft, grass/turf

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
76
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
September 1, 2004
Seat
Left
Flight hours
508 total · 47 in this make and model · 461 as pilot in command · 4 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 6 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 48 °F
Altimeter
30.28 inHg

FAA reports on this event · 1

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