ANC93LA036

NTSB accident investigation · Maule M5 · Chena Hot Sprng, AK · February 20, 1993

Accident · No injuriesLimited investigationFinal report
Date
February 20, 1993, 14:40 local (18:40 UTC)
Place
Chena Hot Sprng, AK
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9176EMaule M5
Weather
Visual (VMC) · Day
Status
Completed · report November 3, 1993
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19930220002989A
Case key
5865

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 total failure of the landing gear axle as a result of a pre existing fracture in the axle.

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.

Airframe/component/system failure/malfunctionLanding - flare/touchdown
Landing gear,axle - fracturedCause
Landing gear,axle - failure,totalCause
On ground/water encounter with terrain/waterLanding - flare/touchdown

Analysis

The sightseeing flight, conducted under 14 CFR part 91, crashed on landing. Witnesses reported that the upon making initial contact with the snow covered surface, the airplane bounced back into the air to a height of two to three feet and the right ski separated from the landing gear structure. Post accident examination disclosed that the fracture occurred at the tubular axle flange of the landing gear. An examination of the fracture revealed that there were several areas at the 12 and 6 o'clock position of the fracture surface that were very bright and rough. Surface areas at the 3 and 9 o'clock position were darker, grayish in color and the surface was somewhat smoother.

Aircraft

Registration
N9176E
Reported as
Maule M5
Category
Airplane
Serial number
7127C
Airframe hours
1,217
Engine
Lycoming O-540-J1A50, 235 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Operator
Seeley, Christopher R., doing business as Fairbanks Float Plane Tours
Registered owner
Seeley, Christopher R.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 4, 1992 · 43 hours before
Airport
CHS · Chena Hot Springs Resort

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
35
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,916 total · 1,200 in this make and model · 1,700 as pilot in command · 28 in the last 90 days · 20 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
70 statute miles
Lowest ceiling
None
Temperature
27 °F

FAA reports on this event · 1

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