# NTSB DEN91DTE01: Warner, David B. GLASAIR-SHA, N520W, Eagle, CO, July 30, 1991

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: July 29, 1991, 18:00 local (Jul 30, 1991, 00:00 UTC)
- Place: Eagle, CO
- Coordinates: 39.650032, -106.819847 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.6500&lon=-106.8198&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report May 7, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 18000
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN91DTE01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18000/pdf
- Page: https://openairdocs.org/ntsb/DEN91DTE01

## Probable cause

THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN AIRSPEED WHILE MANEUVERING IN A TURN DURING INITIAL TAKEOFF CLIMB, RESULTING IN AN IN FLIGHT LOSS OF CONTROL, STALL, AND IN FLIGHT COLLISION WITH TERRAIN. FACTORS WERE: EXCESSIVE BANK ANGLE AND ABRUPT MANEUVER AT A LOW ALTITUDE INSUFFICIENT TO EFFECT A RECOVERY.

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - maneuver - abrupt, pilot in command (contributing factor)
  - airspeed - not maintained, pilot in command (cause)
  - stall - inadvertent, pilot in command (cause)
  - altitude - inadequate, pilot in command (contributing factor)
  - remedial action - not possible, pilot in command
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

IMMEDIATELY FOLLOWING TAKEOFF, THE PILOT INITIATED A RIGHT TURN.  THIS WAS FOLLOWED BY AN IMMEDIATE AND ABRUPT LEFT TURN TO AN EXCESSIVE BANK ANGLE.  THE NOSE OF THE AIRCRAFT DROPPED AND THE AIRCRAFT IMPACTED THE GROUND AND BURNED.

## Aircraft

- Registration: N520W (not matched to a registry record)
- Reported make and model: WARNER, DAVID B. GLASAIR-SHA (GLASAIR-SH)
- Category: Airplane, amateur-built
- Serial number: 254
- Engines: LYCOMING AEIO-360-HIA 180 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Personal, Part 91
- Airport: EGE, Eagle, runway 25, 8,000 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 65; private; airplane ratings: single-engine land; medical: unknown, unknown; flight hours: 2,000 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 15 knots
- Visibility: 40 statute miles
- Lowest ceiling: 20,000 ft broken
- Temperature: -0 °F, dew point -0 °F
- Observed at: EGE, 1 nm away

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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