# NTSB DEN84LA156: Piper PA-28-140, N7386J, Bountiful, UT, May 24, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 23, 1984, 19:30 local (May 24, 1984, 02:30 UTC)
- Place: Bountiful, UT
- Coordinates: 40.880622, -111.819282 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.8806&lon=-111.8193&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16384
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN84LA156
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16384/pdf
- Page: https://openairdocs.org/ntsb/DEN84LA156

## 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
  - supervision - improper, pilot in command (cause)
  - visual lookout - not maintained, dual student (cause)
  - diverted attention, pilot in command (contributing factor)
  - object - vehicle
  - visual lookout - not maintained, driver of vehicle (contributing factor)
  - airport/facilities - inadequate (contributing factor)
  - landing gear,main gear - overload
- In flight collision with terrain/water, landing - flare/touchdown

## Analysis

THE AIRCRAFT WAS ON SHORT FINAL DURING INSTRUCTIONAL LANDING PRACTICE. A TRUCK LOADED WITH A BACKHOE WAS CROSSING THE END OF THE RUNWAY FROM LEFT TO RIGHT ON A PUBLIC ACCESS ROAD WHICH DISPLAYED NO CAUTION OR WARNING SIGNS REGARDING AIRCRAFT OPERATIONS. NEITHER PILOT OBSERVED THE VEHICLE AND THE LEFT MAIN LANDING GEAR BROKE OFF ON CONTACT WITH THE BACKHOE ON LANDING TOUCHDOWN. THE AIRCRAFT VEERED OFF THE RUNWAY.

## Aircraft

- Registration: [N7386J](https://openairdocs.org/deregistered/N7386J-2013-02-21), registration cancelled 2013-02-21, S/N 28-24748, built 1968 (OpenAirDocs)
- Reported make and model: PIPER PA-28-140
- Registry model: [Piper PA-28-140](https://openairdocs.org/model/piper-pa-28-140) (registry code 7102802) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 28-24748
- Airframe hours: 3215
- Engines: LYCOMING O-320-E2A 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Hal Byrne Young
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, December 13, 1983
- Airport: BTE, Bountiful, runway 34, 4,700 × 70 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: right; flight hours: 13,473 total, 8 in this make and model, 6 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 8 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 75 °F
- Altimeter: 30.00 inHg

## 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 19840523018519A](https://openairdocs.org/incident/19840523018519A), May 23, 1984: Piper PA28140, Bountiful, UT, Substantial damage. Aircraft struck truck on short final approach for landing. Collision tore left gear off aircraft.

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.

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