CHI01LA266

NTSB accident investigation · Grumman AA-5B · Beaver Island, MI · August 5, 2001

Accident · No injuriesLimited investigationFinal report
Date
August 5, 2001, 13:15 local (17:15 UTC)
Place
Beaver Island, MI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4545TGrumman AA-5B
Weather
Visual (VMC) · Day
Status
Completed · report June 3, 2002
Report
Approved by Office Director
Parties
FAA - Grand Rapids FSDO
FAA report
20010805019059A
Case key
52976

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 misjudged the approach and landing, and his failure to abort the landing. Factors associated with the accident were the trees at the approach end of the runway and the sand/gravel pit that the airplane traveled into.

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.

OverrunLanding - roll
Object - tree(s)Factor
Planned approach - misjudgedPilot in commandCause
Aborted landing - not performedPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - loose gravel/sandyFactor

Analysis

The airplane traveled off the departure end of the runway and into a sand/gravel pit on landing. The landing was being made on runway 35 (3,500 feet by 140 feet, dry grass). A typed statement provided by the pilot with his NTSB form 6120.1/2 stated that because of trees at the end of the runway, the pilot made a higher than normal approach and sustained engine power until the trees were cleared. He reported the airplane touched down 500 feet beyond approach end of the runway. The pilot reported that during the landing roll he applied additional braking when he realized that the runway had a down slope. He reported, "While I am sure there was a moment that I could have aborted the landing, it passed due to my confidence that directional control and braking was sufficient to achieve this landing." The airplane continued off the departure end of the runway into a sand/gravel pit, which is 8 to 10 feet below the runway elevation. The right wing contacted a sand pile and the airplane rotated 20 degrees to the right prior to coming to rest. There are 60-foot tall trees located 10 feet from the approach end of runway 35. Runway 35 has a 1,350 foot displaced threshold.

Factual narrative

On August 5, 2001, at 1315 eastern daylight time, a Grumman AA-5B, N4545T, collided with the terrain after over running the end of runway 35 (3,500 feet by 140 feet, dry grass) while landing at the Welke Airport, Beaver Island, Michigan. The private pilot and passenger were not injured. The airplane was substantially damaged. The 14 CFR Part 91 personal flight was operating in visual meteorological conditions and a VFR flight plan was filed. The flight originated from Harbor Springs, Michigan at 1230.

The pilot included a typed statement with the NTSB form 6120.1/2 that he submitted. The statement reported that the pilot reported that he checked the weather prior to the flight and the winds in the general area of Beaver Island were from 270 degrees at 3 to 7 knots. He reported that they initially intended to land on runway 27 at the Beaver Island Airport. However, once arriving in the area, he decided to land at the Welke Airport, which was closer to the main town on the island. The pilot reported he flew over the Welke Airport and confirmed that the windsock was indicating that the wind was perpendicular to runway 35.

The pilot reported, "On the turn to final it was observed that a stand of trees existed to the south of the field that required a higher than normal angle of approach to the runway." The pilot reported he used a slight crab to the left and "the power setting was sustained until the aircraft was clear of the treeline." He reported he closed the throttle after clearing the trees and the airplane touched down "500 feet beyond the south-most (entry) end of the runway." The pilot reported he maintained an airspeed that was 5 knots higher than normal due to the crosswind.

The pilot reported that during the landing roll he applied additional braking when he realized that the runway had a down slope. The pilot reported, "While I am sure there was a moment that I could have aborted the landing, it passed due to my confidence that directional control and braking was sufficient to achieve this landing." The airplane continued off the departure end of the runway into a sand/gravel pit, which is 8 to 10 feet below the runway elevation. The right wing contacted a sand pile and the airplane rotated 20 degrees to the right prior to coming to rest.

According to the 2001 Michigan Airport Directory and AirNav.com, there are 60-foot tall trees located 10 feet from the approach end of runway 35. Runway 35 has a 1,350 foot displaced threshold.

Winds reported at the Charlevoix Airport (26 miles southeast of the Welke Airport) at 1315, were from 240 degrees at 6 knots.

Aircraft

Registration
N4545T
Reported as
Grumman AA-5B
Category
Airplane
Serial number
AA5B1268
Airframe hours
2,813
Engine
Lycoming O-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William P. Sheridan
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 20, 2000 · 80 hours before
Departed
D87 · Harbor Springs, MI
Destination
6Y8 · Beaver Island, MI
Flight plan
VFR
Airport
6Y8 · Welke, runway 35, 3,500 × 140 ft, grass/turf

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
48
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
462 total · 90 in this make and model · 390 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 55 °F
Altimeter
30.12 inHg
Observed at
CVX, 26 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.