ANC22LA049

NTSB accident investigation · Piper PA-20 · Palmer, AK · June 20, 2022

Accident · No injuriesClass 4 · LimitedFinal report
Date
June 20, 2022, 12:45 local (20:45 UTC)
Place
Palmer, AK · Sand bar
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N7048KPiper PA-20
Defining event
Takeoff: Powerplant sys/comp malf/fail
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Alaska Regional Office
Parties
FAA
FAA report
20220620010779A
Case key
105390

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

On this page

Probable cause

The loss of engine power due to carburetor icing and the pilot’s failure to utilize carburetor heat.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Action: lack of actionPersonnel issues › Action/decision · PilotPiper PA-20: 3 casesAll aircraft: 792 casesProbable cause
Ice/rain protection system: intake anti-ice, deiceAircraft › Aircraft systems · Not used/operatedPiper PA-20: 1 caseAll aircraft: 108 casesProbable cause
Temp/humidity/pressure: conducive to carburetor icingEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentPiper PA-20: 1 caseAll aircraft: 435 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that he was departing from a remote unimproved landing site. During takeoff, at about 200 feet above ground level, the engine lost all power. The pilot made a forced landing to a gravel sand bar, which resulted in substantial damage to the fuselage and both wing lift struts. The pilot stated that he believed that the carburetor developed ice as weather conditions were conducive to carburetor icing and he failed to apply carburetor heat. The pilot reported that there were no pre-accident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N7048K
Reported as
Piper PA-20
Category
Airplane
Serial number
20-155
Built
1950
Airframe hours
2,865
Engine
Lycoming O-290 SERIES, 135 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 25, 2021 · 33 hours before
Departed
PAAQ · palmer, AK
Equipment
Satellite tracking device, Electronic flight bag or handheld device, Handheld GPS

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
32
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
June 4, 2022
Seat
Left
Restraint
3-point
Flight hours
374.3 total · 215.18 in this make and model · 278.3 as pilot in command · 60 in the last 90 days · 20 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 8 knots
Visibility
10 statute miles
Temperature
66 °F, dew point 43 °F
Altimeter
30.03 inHg
Observed at
PAAQ, 11 nm away
METAR
PAAQ 202053Z 21008KT 10SM SCT065 19/06 A3003 RMK AO2 SLP169 T01890061 58006

Docket · 3

The files NTSB released with the investigation on July 21, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.4 MB in all.

FAA reports on this event · 1

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