# NTSB DEN92LA066: Piper PA-18A, N1874A, Glade Park, CO, June 29, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 29, 1992, 17:00 local (23:00 UTC)
- Place: Glade Park, CO
- Coordinates: 39.000576, -108.730987 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.0006&lon=-108.7310&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 18221
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN92LA066
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18221/pdf
- Page: https://openairdocs.org/ntsb/DEN92LA066

## Probable cause

THE PILOT DELAYED INITIATION OF THE GO AROUND. A FACTOR WAS: HIGH DENSITY ALTITUDE.

## Sequence of events

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

- In flight collision with object, go-around (vfr)
  - object - tree(s)
  - go-around - delayed, pilot in command (cause)
  - weather condition - high density altitude (contributing factor)

## Analysis

WHILE CONDUCTING TOUCH AND GO LANDINGS, THE PILOT INITIATED A GO AROUND AT APPROXIMATELY MID FIELD ON A 1,850 FOOT AIRSTRIP AT A DENSITY ALTITUDE OF 8,300 FEET WITH A FIVE TO 10 KNOT TAILWIND.  THE AIRCRAFT FAILED TO CLEAR TREES AT THE END OF THE RUNWAY DURING THE GO AROUND.

## Aircraft

- Registration: [N1874A](https://openairdocs.org/deregistered/N1874A-2016-09-02), registration cancelled 2016-09-02, S/N 18-1706, built 1952 (OpenAirDocs)
- Reported make and model: PIPER PA-18A
- Registry model: [Piper PA-18A](https://openairdocs.org/model/piper-pa-18a) (registry code 7101804) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18-1706
- Airframe hours: 3450
- Engines: LYCOMING O-320-A1A 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Mountain Island Ranch
- Registered owner: Pangaea Air Service
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 26, 1991, 35 hours before
- Airport: Mountain Island Ranch, runway 4, 1,850 × 60 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; private; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 440 total, 40 in this make and model, 371 as pilot in command, 31 in the last 90 days, 19 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 200° at 14 knots
- Visibility: 90 statute miles
- Lowest ceiling: 25,000 ft overcast
- Temperature: 91 °F, dew point 30 °F
- Altimeter: 29.00 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 19920629044059A](https://openairdocs.org/incident/19920629044059A), Jun 29, 1992: Piper PA18A, Glade Park, CO, Substantial damage. Failed to clear trees on climbout from downwind touch and go. Density altitude 8300 feet,temperature 92 degrees.

## Other investigations on N1874A (1)

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.

- [NTSB FTW73DRA40](https://openairdocs.org/ntsb/FTW73DRA40), Jun 27, 1973: Piper PA-18A (N1874A), Ganado, TX, substantial damage

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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