WPR19TA034

NTSB accident investigation · Cessna 172 · Colorado Springs, CO · November 20, 2018

Accident · Minor injuriesClass 3Final report
Date
November 20, 2018, 09:30 local (16:30 UTC)
Place
Colorado Springs, CO
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N27LACessna 172
Defining event
Takeoff: Runway excursion
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20181120024529A
Case key
98714

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

The pilot's decision to perform a touch-and-go landing at a high-density altitude airport, with a tailwind, and on an upsloping runway, which resulted in decreased airplane performance and the airplane’s inability to become airborne within the available runway.

Findings · 5

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings.

Analysis

The pilot reported that, during a touch-and-go landing, he applied full power to take off and, although the airplane departed the runway surface about 50 knots, it did not accelerate, and the airspeed decreased. The airplane began exhibiting characteristics consistent with a stall and he lowered the nose. The airplane then settled back onto the ground slightly off the left side of the runway surface and continued through a grassy field, a fence, and a ditch. The airplane nosed over and came to rest inverted, resulting in substantial damage. Witnesses reported observing the airplane in a nose-high attitude before it descended from view. The flaps were found extended to 40° at the accident site. The density altitude at the time of the accident was about 7,386 ft, and there was an approximate 4-knot tailwind for the landing runway, which had a 1.4% upslope. According to the Federal Aviation Administration Airport/Facility directory, the opposite runway was recommended for touch-and-go landings in tailwind conditions up to 5 knots. According to the manufacturer's takeoff performance chart, there was adequate runway available for takeoff; however, given the high-density altitude, the tailwind, and the runway upslope, the distance required to conduct a touch-and-go landing and takeoff distance were significantly increased, which resulted in the airplane’s inability to become airborne within the remaining runway.

Factual narrative

The factual narrative420 words

On November 20, 2018, about 0930 mountain standard time, a Cessna 172 airplane, N27LA, was substantially damaged when it was involved in an accident near Colorado Springs, Colorado. The commercial pilot and passenger sustained minor injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that, after departure, they flew to a different airport and conducted three uneventful touch-and-go landings. He then proceeded to the accident airport and performed a straight-in approach to runway 33. He approached the runway at a normal speed of 60 knots with the flaps fully down and the "mixture set appropriately for the 7,000-ft field elevation"; he did not apply carburetor heat. The airplane landed, and he added full power, raised the flaps, and raised the nose to take off. The airplane became airborne about 50 knots but did not accelerate; instead, the airspeed decreased to about 45 knots. The airplane began exhibiting characteristics consistent with a stall, and he lowered the nose. The airplane settled back onto the ground slightly off the left side of the runway surface and rolled through a grassy field, a fence, and impacted a ditch. The airplane nosed over and came to rest inverted. Witnesses reported observing the airplane in a nose-high attitude before it descended from view. Shortly thereafter, they observed people running toward the airplane. Examination conducted by a Federal Aviation Administration (FAA) inspector revealed that the flaps were fully extended. The flap indicator in the cockpit displayed 40°. Weather about the time of the accident was reported as wind from 130° at 4 knots, temperature 9°C, dewpoint -11°C, and an altimeter setting of 30.26 inches of mercury, which corresponded to a density altitude of about 7,386 ft. According to the FAA Airport/Facility Directory, "runway 15 is recommended for takeoff, touch and go landings when effective tailwind is less than 5 knots". The directory stated that runway 33 had an upslope of 1.4%. Runway 15/33 was 60 ft wide and about 6,000 ft long. The takeoff performance chart in the 172M Pilot Operating Handbook indicates the following airplane configuration and environmental conditions during takeoff: Flaps up; full throttle prior to brake release; zero wind; and a paved, level, dry runway. The notes section stated, "for operation with tailwinds up to 10 knots, increase distances by 10% for each 2 knots." It further stated, "prior to takeoff from fields above 3,000 feet elevation, the mixture should be leaned to give maximum RPM in a full throttle, static runup."

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident.

Aircraft

Registration
N27LA
Reported as
Cessna 172 (M)
Category
Airplane
Serial number
17265689
Built
1975
Airframe hours
9,188
Engine
Lycoming O-320 SERIES, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Kingdom, Power, and Glory LLC, doing business as Peak Aviation
Registered owner
Good Guys Finish First Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · October 19, 2018 · 66 hours before
Departed
COS · Colorado Spring, CO
Destination
COS · Colorado Spring, CO
Airport
FLY · Meadow Lake Airport, runway 33, 6,000 × 60 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
76
Injuries
Minor
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
April 3, 2018
Seat
Left
Restraint
3-point
Flight hours
3,156 total · 36 in this make and model · 2,777 as pilot in command · 17 in the last 90 days · 6 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
130° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
48 °F, dew point 12 °F
Altimeter
30.26 inHg
Observed at
FLY

FAA reports on this event · 1

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