ANC00LA113

NTSB accident investigation · Stinson 108-3 · Yakutat, AK · September 5, 2000

Accident · No injuriesLimited investigationFinal report
Date
September 5, 2000, 15:30 local (23:30 UTC)
Place
Yakutat, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N603CStinson 108-3
Weather
Visual (VMC) · Day
Status
Completed · report July 2, 2001
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20000905042499A
Case key
50987

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 selection of an unsuitable landing area. Factors associated with the accident were the oil sprayed windshield, the sunglare, and an object in the water which the pilot did not see.

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.

On ground/water collision with objectLanding - flare/touchdown
Object - undeterminedFactor
Light condition - sunglareFactor
Window,flight compartment window/windshield - dirty(foggy)Factor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Nose overLanding - roll

Analysis

The pilot said that while landing there was glare from the water, and oil spray on the windscreen. He described the seaplane touching down, and immediately flipping over. He stated that he does not know if he dragged one of the float tips in the water, or struck an object which he could not see in the sun glare. Postaccident inspection by an FAA inspector revealed damage to the right float bottom from possibly impacting an object in the water.

Factual narrative

On September 5, 2000, about 1530 Alaska daylight time, a Stinson 108-3 float equipped airplane, N603C, sustained substantial damage when it nosed over during landing at the Yakutat Harbor Seaplane Base, Yakutat, Alaska. The private pilot and the sole passenger on board were not injured. The personal flight was conducted under 14 CFR Part 91, and departed Cordova, Alaska, at 1301 for Yakutat. Visual meteorological conditions prevailed at the time of the accident, and a VFR flight plan was filed.

The pilot told the NTSB investigator-in-charge during a telephone interview on September 5, that while landing there was glare from the water. He described the airplane touching down, and immediately flipping over. He stated that he does not know if he dragged one of the float tips in the water, or struck an object which he could not see in the sun glare. The airplane sustained substantial damage to wings, and empennage. The pilot noted in his NTSB pilot/operator report that there was light oil on the windscreen, further obstructing his vision. He said he became aware of the oil during the leg from Cordova to Yakutat, but that engine oil pressure and temperature remained normal during the flight. Postaccident inspection by an FAA inspector revealed damage to the right float bottom from possibly impacting an object in the water.

Aircraft

Registration
N603C
Reported as
Stinson 108-3
Category
Airplane
Serial number
108-3603
Engine
Franklin 6AS-350-A, 250 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
John P. Gross
Registered owner
John P. Gross
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 20, 2000 · 25 hours before
Departed
CKU · Cordova, AK
Destination
2Y3
Flight plan
VFR
Airport
2Y3 · Yakutat Seaplane Base, runway 31, 7,500 × 0 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
50
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
250 total · 25 in this make and model · 200 as pilot in command · 25 in the last 90 days · 7 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 9 knots
Visibility
10 statute miles
Lowest ceiling
3,000 ft broken
Temperature
50 °F, dew point 45 °F
Altimeter
30.00 inHg
Observed at
YAK, 4 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.