- Date
- August 3, 2017, 19:50 local (Aug 4, 2017, 01:50 UTC)
- Place
- Moab, UT
- Injuries
- 1 serious, 1 minor
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N1214DCessna 170
- Defining event
- Enroute-climb to cruise: Windshear or thunderstorm
- Weather
- Visual (VMC) · Dusk
- Status
- Completed · report March 14, 2018
- Report
- Approved by Office Director
- NTSB office
- General Aviation Accidents
- Parties
- FAA
- FAA report
- 20170803010289A
- Case key
- 95748
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 improper decision to depart in unfavorable weather conditions, which resulted in a hard, forced landing.
Findings · 4
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
According to the pilot, he and his passenger were waiting in the fixed-base operator building for the storm system to pass. When the storm system appeared to have passed and the wind had calmed significantly, the pilot checked the Automated Surface Observing System and took off from runway 21. During the initial climb, the pilot observed "just beyond the end of the pavement was the obvious sign of a small microburst developing with blowing dust curling up in several different directions centered just to the right of the centerline, and it was growing spreading out quickly." The pilot was able to climb the airplane to about 400 ft before encountering wind at the departure end of the runway. He made a slight left turn to avoid power lines and performed a forced landing. The airplane landed hard and sustained substantial damage to both wings, the fuselage, and empennage. The Special METAR reported that, about the time of the accident, the wind was from 280° at 23 knots, gusting to 34 knots. The visibility was 10 statute miles with light rain. There were few clouds at 3,500 ft, and the ceiling was broken at 9,000 ft and 11,000 ft. The temperature was 84°F, and the dew point was 45°F. The altimeter setting was 30.06 inches of mercury. The peak wind was from 10° at 40 knots at 1903, and the wind shifted direction at 1910. The rain began at 1958 with trace precipitation. The density altitude was 7,164 ft. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Factual narrative
According to the pilot, he and his passenger were waiting in the fixed-base operator building for the storm system to pass. When the storm system appeared to have passed and the wind had calmed significantly, the pilot checked the Automated Surface Observing System (ASOS) and took off on runway 21. During the initial climb, the pilot observed "Just beyond the end of the pavement was the obvious sign of a small microburst developing with blowing dust curling up in several different directions centered just to the right of the centerline, and it was growing spreading out quickly". The pilot was able to climb about 400ft before encountering the wind at the departure end of the runway. He made a slight left turn to avoid powerlines and performed a forced landing. The airplane landed hard and sustained substantial damage to both wings, the fuselage and the empennage. The Special METAR, reported that about the time of the accident the wind was from 280° at 23 knots gusting to 34 knots. The visibility was10 statute miles with light rain. There were few clouds at 3,500 feet and the ceiling was broken at 9,000 feet and 11,000 feet. The temperature was 84°F and the dew point was 45°F. The altimeter setting was 30.06 inches of mercury. The peak wind was from 10° at 40 knots at 1903 MDT and the wind shifted direction at 1910 MDT. The rain began at 1958 MDT with trace precipitation. The density altitude was 7,164ft. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Aircraft
- Registration
- N1214D
- Reported as
- Cessna 170 (A)
- Category
- Airplane
- Serial number
- 19768
- Built
- 1950
- Airframe hours
- 3,309
- Engine
- Continental O-300-A, 145 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · August 13, 2016
- Departed
- CNY · Moab, UT
- Destination
- U69 · Duchesne, UT
- Airport
- CNY · Canyonlands Field, runway 21, 7,100 × 75 ft
- Equipment
- Electronic flight bag or handheld device, ADS-B
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
- 46
- Injuries
- Minor
- Certificates
- Flight instructor, Airline transport, Commercial
- Airplane ratings
- Multi-engine land, Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, With waivers/limitations
- Last flight review
- June 13, 2017
- Seat
- Left
- Restraint
- 3-point
- Flight hours
- 12,169 total · 633 in this make and model · 7,968 as pilot in command · 130 in the last 90 days · 40 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Dusk
- Wind
- 280° at 23 knots, gusting 34
- Visibility
- 10 statute miles
- Lowest ceiling
- 9,000 ft broken
- Temperature
- 84 °F, dew point 45 °F
- Altimeter
- 30.05 inHg
- Observed at
- KCNY, 1 nm away
Docket · 4
The files NTSB released with the investigation on January 30, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.2 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.
Other investigations on N1214D · 1
Matched to the same aircraft by N-number and date.