DEN89LA049

NTSB accident investigation · Piper PA-11 · Winnett, MT · December 23, 1988

Accident · No injuriesLimited investigationFinal report
Date
December 23, 1988, 13:00 local (20:00 UTC)
Place
Winnett, MT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N5570HPiper PA-11
Weather
Visual (VMC) · Day
Status
Completed · report December 3, 1989
Report
Approved by Office Director
FAA report
19881223060079A
Case key
17653

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 control - in flightTakeoff - initial climb
Wing - iceFactor
Aircraft preflight - inadequatePilot in commandCause
Stall - inadvertentPilot in commandCause
Fatigue(flight schedule)Pilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot was taking off from a farm strip with a 10 kt head wind. The plt said the sun was shining at the time of the acdt but there had been snow showers in the area. He said the liftoff was normal but at about 15 to 18 ft AGL the acft stalled and crashed. After the acdt the plt found a thin layer of ice on the wings. He said the sun probably melted snow on the wings, while the acft was parked, which then froze during the takeoff. The temp at the time of the acdt was estimated to be 20-25 deg f. the plt reported he had flown 10 hrs in the preceding 24.

Aircraft

Registration
N5570H
Reported as
Piper PA-11
Category
Airplane
Serial number
11-1092
Airframe hours
3,825
Engine
Continental C-90-8F, 90 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Lemmon, Darrell C.
Registered owner
Lemmon, Darrell & Robin
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 23, 1988 · 174 hours before
Departed
NONE
Destination
NONE · Ryegate, MT
Airport
NONE · Farm Strip, runway 22, 3,000 × 50 ft, dirt

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
28
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
246 total · 175 in this make and model · 204 as pilot in command · 150 in the last 90 days · 75 in the last 30 days · 10 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
200° at 10 knots
Visibility
3 statute miles
Lowest ceiling
1,500 ft overcast
Temperature
25 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N5570H · 2

Matched to the same aircraft by N-number and date.