DEN87LA116

NTSB accident investigation · Weatherly 620 · Greeley, CO · April 30, 1987

Accident · No injuriesLimited investigationFinal report
Date
April 30, 1987, 08:15 local (14:15 UTC)
Place
Greeley, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N9256WWeatherly 620
Weather
Visual (VMC) · Day
Status
Completed · report March 10, 1988
Report
Approved by Office Director
FAA report
19870430013069A
Case key
17217

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine powerApproach - vfr pattern - downwind
Reason for occurrence undeterminedCause
Emergency procedure - performedPilot in command
Altitude - inadequatePilot in commandFactor
Forced landingDescent - emergency
Terrain condition - none suitableFactor
In flight collision with terrain/waterDescent - uncontrolled
Airspeed(vs) - belowPilot in commandCause
Stall - inadvertentPilot in commandCause

Analysis

The plt departed with full fuel in the acft to practice aerial spraying techniques. After 45 mins of practice he returned to the arpt for landing. He said that prior to entering the traffic pattern he switched from the half-full right tank to the full left tank. Three mins later, while on the downwind leg at 300-400 ft AGL, the eng lost pwr. The plt said he was too low to loosen his shoulder harness and feel the fuel selector but he visually checked it and it appeared to be positioned correctly. He said he applied carb heat and turned the boost pump on but pwr was not restored. The plt attempted to land in an open field adjoining the arpt but inadvertently stalled the acft about 20 ft AGL and crashed. Investigation disclosed no evidence of mechanical failure/malfunction of acft or eng. Fuel was present in tanks and lines. Eng was later test run without difficulty.

Aircraft

Registration
N9256W
Reported as
Weatherly 620
Category
Airplane
Serial number
1501
Engine
P&W R-985-AN1, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Other work use · Part 91
Operator
Doug Campbell, doing business as C & C Aerial Sprayers
Registered owner
C & C Aerial Sprayers, Inc.
Airworthiness certificate
Special, Limited (Special)
Last inspection
Annual · May 1, 1986 · 10 hours before
Airport
GXY · Greeley Weld County

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
26
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
604 total · 12 in this make and model · 485 as pilot in command · 102 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
20° at 4 knots
Visibility
45 statute miles
Lowest ceiling
10,000 ft broken
Temperature
54 °F, dew point 39 °F
Altimeter
30.00 inHg
Observed at
FNL, 18 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.