DEN06LA055

NTSB accident investigation · McLaughlin Rans S-7 · Hudson, CO · April 1, 2006

Accident · Serious injuriesLimited investigationFinal report
Date
April 1, 2006, 16:25 local (23:25 UTC)
Place
Hudson, CO
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N924LBMcLaughlin Rans S-7
Weather
Visual (VMC) · Day
Status
Completed · report August 29, 2006
Report
Approved by Office Director
Parties
FAA Flight Standards District Office
FAA report
20060401004689A
Case key
63455

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 failure to maintain control of the airplane during an attempted landing. Contributing factors include the pilot's improper in-flight planning and decision making, the pilot's lack of experience in tailwheel airplanes, the pilot's lack of a tailwheel endorsement, and the gusty winds.

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 - in flightLanding
Aircraft control - not maintainedPilot in commandCause
Lack of familiarity with aircraftPilot in commandFactor
Weather condition - gustsFactor
In-flight planning/decision - improperPilot in commandFactor
Lack of certificationPilot in commandFactor
In flight collision with objectLanding
Object - other

Analysis

According to the pilot there was no intention to land. He stated that he had no recollection after turning final, but did recall "radical maneuvering to avoid hitting" the tank. According to the statement submitted by the pilot-rated passenger, the airplane touched down and the pilot "had trouble with directional control." The passenger stated that the pilot added power, became airborne, and struck the tank, resulting in substantial damage. An examination of the airplane's systems revealed no anomalies. The routine aviation weather report reported, wind 340 degrees at 21 knots, gusting to 27 knots; with peak wind recorded at 29 minutes past the hour at 230 degrees at 29 knots. According to the FAA, the pilot did not hold a tailwheel endorsement.

Factual narrative

On April 1, 2006, at 1625 mountain standard time, a McLaughlin Rans S-7, N924LB, piloted by an airline transport pilot, was substantially damaged when it impacted an oil tank while landing at Platte Valley Airpark (18V), Hudson, Colorado. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91 without a flight plan. The pilot sustained minor injuries and the pilot-rated passenger sustained serious injuries. The local flight departed approximately 1600.

According to the emergency response personnel, the pilot stated they were attempting to land on runway 33 (4,100 feet x 40 feet, asphalt) when the airplane impacted the oil tank on the left side of the runway. Both the pilot and private pilot-rated passenger submitted a Pilot/Operator Aircraft Accident Report Form (NTSB Form 6120.1/2). According to the pilot's statement, the purpose of the flight was to introduce the pilot to the make and model of the airplane. There was no intention to land. He stated that he had no recollection after turning final for runway 33, but did recall "radical maneuvering to avoid hitting" the tank. According to the statement submitted by the pilot-rated passenger, the airplane touched down and the pilot "had trouble with directional control." The passenger stated that the pilot added power, became airborne, and struck the tank.

The right wing separated from the airplane, and the right horizontal stabilizer was bent up and wrinkled. An examination of the airplane's systems, conducted by an Airworthiness Inspector with the Federal Aviation Administration (FAA), revealed no anomalies.

The closest official weather observation station was Denver International Airport (DEN), Denver, Colorado, located 14 nautical miles south of the accident site. The routine aviation weather report (METAR) for DEN , issued at 1653, reported, wind 340 degrees at 21 knots, gusting to 27 knots; visibility 10 statute miles, light rain; sky condition, broken 6,000 feet agl, broken, 8,000 feet agl, broken, 12,000 feet agl; temperature 13 degrees Celsius (C); dewpoint, 01 degrees C; altimeter, 29.97 inches; remarks, peak wind recorded at 29 minutes past the hour at 230 degrees at 29 knots.

According to the FAA, the pilot did not hold a tailwheel endorsement. According to CFR Part 61.31(h) 2 (i) "Additional training required for operating tailwheel airplanes. (1) Except as provided in paragraph (i)(2) of this section, no person may act as pilot in command of a tailwheel airplane unless that person has received and logged flight training from an authorized instructor in a tailwheel airplane and received an endorsement in the person's logbook from an authorized instructor who found the person proficient in the operation of a tailwheel airplane." In addition, according to CFR Part 61.57 (a) "...no person may act as a pilot in command of an aircraft carrying passengers or of an aircraft certificated for more than one pilot flight crewmember unless that person has made at least three takeoffs and three landings within the preceding 90 days, and ... (ii) The required takeoffs and landings were performed in an aircraft of the same category, class, and type (if a type rating is required), and, if the aircraft to be flown is an airplane with a tailwheel, the takeoffs and landings must have been made to a full stop in an airplane with a tailwheel."

Aircraft

Registration
N924LB
Reported as
McLaughlin Rans S-7
Category
Airplane, amateur-built
Serial number
RJM-2
Airframe hours
768
Engine
Rotax 912SKL, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Continuous airworthiness · June 1, 2005 · 29 hours before
Departed
18V · Hudson, CO
Destination
18V · Hudson, CO
Airport
18V · Platte Valley Airpark, runway 33, 4,100 × 40 ft, asphalt

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
69
Injuries
Minor
Certificates
Flight engineer, Commercial, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
November 1, 2005
Seat
Front
Flight hours
25,000 total · 0 in this make and model · 5 in the last 90 days · 5 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 21 knots, gusting 27
Visibility
10 statute miles
Lowest ceiling
6,000 ft broken
Temperature
55 °F, dew point 34 °F
Altimeter
29.79 inHg
Observed at
DEN, 14 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.