ANC91LA078

NTSB accident investigation · Maule M4-220-C · Fairbanks, AK · June 21, 1991

Accident · No injuriesLimited investigationFinal report
Date
June 21, 1991, 00:07 local (08:07 UTC)
Place
Fairbanks, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N40304Maule M4-220-C
Weather
Visual (VMC) · Day
Status
Completed · report March 31, 1993
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19910621065589A
Case key
5562

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 pilot's failure to maintain airspeed during the initial climb and exceeding the gross weight of the airplane. Contributing to the accident was high vegetation.

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
Stall/mushPilot in command
Airspeed - not maintainedPilot in commandCause
Aircraft weight and balance - exceededPilot in commandCause
In flight collision with objectDescent - uncontrolled
Terrain condition - high vegetationFactor

Analysis

Shortly after liftoff, the airplane crashed in a wooded area next to the airport. After the accident, it was revealed that both floats had a large amount of water in them. The PIC stated he believed that the airplane was over gross weight by 200 pounds.

Aircraft

Registration
N40304
Reported as
Maule M4-220-C
Category
Airplane
Serial number
2078C
Airframe hours
425
Engine
Franklin GA-350-C1, 220 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Max C. Lyon Jr.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 13, 1991 · 1 hours before
Destination
NONE · Nowitna River, AK
Airport
FAI · Fairbanks Int'L Airport, runway 1, 5,400 × 150 ft, water

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
44
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
478 total · 11 in this make and model · 448 as pilot in command · 44 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 6 knots
Visibility
80 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 46 °F
Altimeter
30.00 inHg
Observed at
FAI, 1 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.