ANC94LA128

NTSB accident investigation · Maule M5 · Port Alsworth, AK · September 3, 1994

Accident · No injuriesLimited investigationFinal report
Date
September 2, 1994, 19:00 local (Sep 3, 1994, 03:00 UTC)
Place
Port Alsworth, AK
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N51637Maule M5
Weather
Visual (VMC) · Dusk
Status
Completed · report May 9, 1995
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19940902025369A
Case key
2560

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 selection of unsuitable terrain.

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.

Gear collapsedLanding - roll
Terrain condition - mountainous/hilly
Terrain condition - rough/uneven
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause

Analysis

The pilot stated that he was landing on a ridge and the landing area was rougher than he expected. Upon landing the main gear collapsed and the wheels bent the wing struts.

Factual narrative

On September 2, 1994, at 1900 Alaska daylight time, a wheel equipped Maule M5, airplane, N51637, registered to and operated by the pilot, collapsed its main gear during landing at a field site located 30 miles northwest of Port Alsworth, Alaska. The personal flight, operating under 14 CFR Part 91 for the purposes of hunting, departed Merrill Field, Anchorage, Alaska, and the destination was the accident site. A VFR flight plan was filed and visual meteorological conditions prevailed. The airplane received substantial damage and the pilot and the two passengers were not injured.

According to the pilot, he landed on a ridge and the surface was rougher than he expected. The main gear collapsed and bent the wing struts during the landing roll.

Aircraft

Registration
N51637
Reported as
Maule M5
Category
Airplane
Serial number
5026L
Airframe hours
1,495
Engine
Franklin 6A-350-L1, 220 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Litton, Andrew
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 23, 1993 · 160 hours before
Departed
MRI · Anchorage, AK
Flight plan
VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
37
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
180 total · 165 in this make and model · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
50 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

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