# NTSB DEN82DA141: American AA5B, N28218, Broomfield, CO, July 22, 1982

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: July 22, 1982, 09:43 local (15:43 UTC)
- Place: Broomfield, CO
- Coordinates: 39.939636, -105.060371 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.9396&lon=-105.0604&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor, 2 uninjured
- Status: Completed, report July 22, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 70048
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN82DA141
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/70048/pdf
- Page: https://openairdocs.org/ntsb/DEN82DA141

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, takeoff - initial climb
  - weather condition - high density altitude (contributing factor)
  - maintenance - inadequate (cause)
  - weather condition - high density altitude (cause)
  - engine assembly,cylinder - worn (cause)
  - ignition system,magneto - corroded (cause)
- Forced landing, landing - flare/touchdown
  - terrain condition - open field (contributing factor)
  - terrain condition - soft (contributing factor)

## Analysis

THE PILOT WAS CONDUCTING LOCAL AREA PLEASURE SIGHTSEEING FLIGHTS WHEN THE AIRCRAFT FAILED TO CLIMB DURING A NORMAL DEPARTURE. SHE LANDED THE AIRCRAFT IN A PLOWED FIELD.INVESTIGATION REVEALED THE FLIGHT WAS CONDUCTED AT A DENSITY ALTITUDE APPROXIMATELY 8,750 FEET. ALSO THE ENGINE WAS EXAMINED AND FOUND NOT CAPABLE OF PRODUCING FULL TAKEOFF RATED POWER.

## Aircraft

- Registration: [N28218](https://openairdocs.org/aircraft/N28218), registered now, S/N AA5B0942, built 1978 (OpenAirDocs)
- Reported make and model: AMERICAN AA5B
- Registry model: [Gulfstream American AA-5B](https://openairdocs.org/model/gulfstream-american-aa-5b) (registry code 3970106) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: AA5B0942
- Airframe hours: 798
- Engines: LYCOMING O-360-A4K 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Rainbow Aviation Inc.
- Registered owner: Tl Dougherty
- Departed: BJC, BROOMFIELD, CO
- Destination: BJC, BROOMFIELD, CO
- Airport: BJC, Jeferson County Airport, runway 29, 7,498 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 31; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 130 total, 49 in this make and model, 62 as pilot in command, 26 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: variable at 6 knots
- Visibility: 50 statute miles
- Temperature: 176 °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 19820722032869A](https://openairdocs.org/incident/19820722032869A), Jul 22, 1982: Gulstm AA5B, Broomfield, CO, Substantial damage. Aircraft failed to climb after takeoff and pilot attempted emergency landing. Engine not producing rated power.

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.