- Date
- October 13, 2018, 15:30 local (21:30 UTC)
- Place
- Hudson, CO
- Injuries
- 2 minor
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N1881NCessna 120
- Defining event
- Approach-VFR go-around: Loss of engine power (partial)
- Weather
- Visual (VMC) · Day
- Status
- Completed · report September 14, 2020
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA FSDO
- FAA report
- 20181013019949A
- Case key
- 98471
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 partial loss of engine power for reasons that could not be determined based on the available information.
Findings · 1
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot was attempting to land with quartering tailwind. He stated that he noticed a strong crosswind and decided to go around. During the go-around, the pilot added engine power; however, the engine did not develop full power. The engine began to sputter and surge as the airplane continued to climb but did not regain power, so the pilot performed a forced landing to a field. The airplane nosed over and sustained substantial damage. A postaccident engine test run was performed. The engine started without hesitation, but damage to the engine and propeller prevented testing the maximum power setting. Although the engine operation during the go-around is similar to that which would be experienced if carburetor ice had accumulated during the approach, the weather conditions at the time were just outside those at which ice would accumulate. Therefore, the reason for the partial loss of engine could not be determined.
Factual narrative
***This report was modified on September 3, 2020. Please see the docket for this accident to view the original report.*** On October 13, 2018, about 1500 mountain daylight time, a Cessna 120 airplane, N1881N, was substantially damaged when it was involved in an accident near Fort Lupton, Colorado. The pilot and passenger both sustained serious injuries. The airplane was operated by a private individual as a Title 14 Code of Federal Regulations Part 91 personal flight. According to a statement provided by the pilot, while attempting to land on runway 33 at Platte Valley Airpark (18V), Hudson, Colorado, the pilot noticed a strong crosswind and decided to go around. During the go-around, the pilot added engine power the engine did not develop full power. The engine began to sputter and surge as the airplane continued to climb. The engine did not regain power, so the pilot performed a forced landing to a field. The airplane settled into a cornfield and nosed over. The airplane was transported to a salvage facility and the engine set up for a functional test run. The engine started without hesitation and ran at idle power without incident. Damage to the engine and propeller prevented testing the maximum power setting. A review of carburetor icing probability chart found that the airplane was not operating in an area at the edge of having the potential for icing at a glide power setting. During recovery of the airplane about 7 gallons of fuel was recovered from both tanks.
Aircraft
- Registration
- N1881N
- Reported as
- Cessna 120 (No Series)
- Category
- Airplane
- Serial number
- 12125
- Built
- 1946
- Engine
- Continental C85 SERIES, 85 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Standard, Normal
- Departed
- CO12 · Brighton, 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
- 49
- Injuries
- Minor
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Seat
- Left
- Restraint
- 3-point
- Flight hours
- 610 total · 51 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 110° at 13 knots
- Visibility
- 10 statute miles
- Temperature
- 63 °F, dew point 27 °F
- Altimeter
- 29.71 inHg
- Observed at
- KDEN, 17 nm away
Docket · 7
The files NTSB released with the investigation on June 19, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.7 MB 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.