CEN22LA241

NTSB accident investigation · American AA-1A · Granite Falls, MN · June 10, 2022

Accident · Serious injuriesClass 4 · LimitedFinal report
Date
June 10, 2022, 06:50 local (11:50 UTC)
Place
Granite Falls, MN
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N9207LAmerican AA-1A
Defining event
Approach: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
Federal Aviation Administration, Minneapolis FSDO
FAA report
20220610005489A
Case key
105242

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

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Probable cause

The pilot’s failure to maintain airplane control while in the airport traffic pattern that resulted in an uncontrolled descent and impact with terrain.

Findings · 1

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.

Performance/control parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedAmerican AA-1A: 3 casesAll aircraft: 1,269 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 had returned to the airport for landing after conducting a local personal flight. He was performing a lefthand traffic pattern and was turning from base leg to final approach when the airplane departed controlled flight and impacted a flat dirt field. The airplane sustained substantial damage to the right wing and vertical stabilizer. The pilot reported that he did not remember any of the events after the airplane entered the airport traffic pattern except for radio calls that he made and that the airplane operated normally during the flight. A postaccident examination revealed no mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The private pilot of the personal flight stated that the takeoff from the departure airport was “smooth,” and he climbed the airplane to about 2,300 ft. and performed several maneuvers. He then decided to return to the departure airport for landing. The airplane impacted a flat dirt field and sustained substantial damage to the right wing and vertical stabilizer. He did not remember any of the events after the airplane entered the airport traffic pattern except for radio calls that he made. The pilot stated that the airplane was operating normally during the flight. Postaccident examination of the airplane revealed no mechanical anomalies that would have precluded normal airplane operation.

Aircraft

Registration
N9207L
Reported as
American AA-1A
Category
Airplane
Serial number
AA1A-0107
Built
1971
Airframe hours
2,807
Engine
Lycoming O-320-E2A, 115 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 16, 2022
Destination
Same as departure
Airport
GDB · Granite Falls Municipal Airport/Lenzen-Roe-Fagen Memorial Field, runway 33, 4,357 × 75 ft
Equipment
Stall warning system, Handheld GPS, ADS-B

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
67
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
May 6, 2022
Seat
Left
Restraint
Lap only
Flight hours
131 total · 58 in this make and model · 38 as pilot in command · 18 in the last 90 days · 11 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 5 knots
Visibility
10 statute miles
Lowest ceiling
10,000 ft overcast
Temperature
64 °F, dew point 59 °F
Altimeter
29.93 inHg
Observed at
GDB, 0.75 nm away

Docket · 4

The files NTSB released with the investigation on March 23, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.8 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.