# NTSB DEN87LA155: Cessna 172, N7121A, Paradise, UT, June 21, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 21, 1987, 14:15 local (20:15 UTC)
- Place: Paradise, UT
- Coordinates: 41.48072, -111.769981 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.4807&lon=-111.7700&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 5, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 17248
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN87LA155
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17248/pdf
- Page: https://openairdocs.org/ntsb/DEN87LA155

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with object, landing - flare/touchdown
  - visual lookout - inadequate, pilot in command (cause)
  - expectancy, pilot in command (cause)
  - object - fence (contributing factor)

## Analysis

THE PLT DEPARTED BEAR LAKE ARPT, MONTPELIER, ID, AND FLEW TO LOGAN, UT. HE DEPARTED LOGAN AND FLEW TO HIS FATHER'S RANCH AT AVON, UT, NEAR PARADISE. A 1400-FT DIRT/GRAVEL DRIVEWAY LEADING TO THE RANCH HOUSE WAS USED AS A RWY. THE PLT SAID HE HELPED HIS FATHER INSTALL A BARBED WIRE FENCE NEAR THE RWY THRESHOLD TO KEEP CATTLE IN A PASTURE. HE SAID WHEN HE HAD LANDED AT THE RANCH ON PREVIOUS OCCASIONS, THE FENCE WAS NEVER UP. HE SAID THAT ON THE DAY OF THE ACCIDENT, CATTLE HAD BEEN MOVED FROM ONE PASTURE TO ANOTHER AND, UNKNOWN TO HIM, THE FENCE WAS RAISED. HE SAID HE DID NOT SEE THE FENCE WHEN HE CIRCLED THE RANCH AND ASSUMED IT WAS DOWN. THE ACFT COLLIDED WITH THE FENCE AS IT WAS FLARED FOR LANDING.

## Aircraft

- Registration: [N7121A](https://openairdocs.org/aircraft/N7121A), registered now, S/N 29221, built 1956 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172](https://openairdocs.org/model/cessna-172) (registry code 2072402) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 29221
- Airframe hours: 4953
- Engines: CONTINENTAL O-300-A 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Denzil K. Forsberg
- Registered owner: Denzil K Forsberg
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 12, 1986
- Departed: 107, MONTPELIER, ID
- Airport: Forsberg Ranch, runway 17, 1,400 ×  ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; student; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 321 total, 297 as pilot in command, 11 in the last 90 days, 5 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 220° at 10 knots
- Visibility: 40 statute miles
- Lowest ceiling: none
- Temperature: 86 °F
- Altimeter: 29.00 inHg
- Observed at: LGU, 13 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 (OpenAirDocs).

- [Accident 19870621028349A](https://openairdocs.org/incident/19870621028349A), Jun 21, 1987: Cessna 172, Paradise, UT, Substantial damage. Struck a barbed wire fence and crashed while landing on farm strip. Fence put up unknown to pilot. No endorsements.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.