ANC95LA130

NTSB accident investigation · Piper PA-12 · Ketchikan, AK · August 5, 1995

Accident · No injuriesLimited investigationFinal report
Date
August 4, 1995, 18:00 local (Aug 5, 1995, 02:00 UTC)
Place
Ketchikan, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N3688MPiper PA-12
Weather
Visual (VMC) · Day
Status
Completed · report February 27, 1996
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19950804028629A
Case key
2709

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 inadequate preflight preparation and the water in the airplane's fuel system. A factor in the accident was the rough water in the forced landing area.

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 engine power(total) - nonmechanicalCruise
Fluid,fuel - contamination,waterCause
Preflight planning/preparation - inadequatePilot in commandCause
Forced landingEmergency descent/landing
Hard landingEmergency descent/landing
Terrain condition - water,roughFactor

Analysis

The pilot stated he was in cruise flight when the engine stopped producing power. He made a forced landing and landed hard in rough water. The landing damaged the floats and broke a lower longeron. The airplane sank after drifting for 30 minutes. The pilot stated that prior to the accident flight, the airplane sat on the ground for a long time in need of maintenance. During the preflight he found water in the fuel system. When he drained the gascolator he thought the fluid was all fuel because it was the same color. Examination of the fuel system, after the airplane was recovered, showed water in the gascolator and the carburetor fuel bowl.

Factual narrative

On August 4, 1995, at 1800 Alaska daylight time, a float equipped Piper PA-12 airplane, N3688M, registered to and operated by the pilot, had a power loss in cruise flight and landed hard on the water in Cordova Bay, Alaska, which is located 38 miles southwest of Ketchikan, Alaska. The personal flight, operating under 14 CFR Part 91, departed Cordova Bay on a VFR flight plan and the destination was Ward Cove, Alaska. Visual meteorological conditions prevailed. The commercial certificated pilot, the sole occupant, was not injured and the airplane received substantial damage.

During a telephone conversation with the pilot on August 11, 1995, he stated that he had 4 hours of fuel on board and had flown 2 hours. While in cruise flight, the engine "stumbled" and then stopped producing power. The pilot executed a forced landing in Cordova Bay and landed hard in rough water. The landing damaged the floats and broke a lower longeron. After drifting for 30 minutes the airplane sank. The pilot stated that the airplane had been sitting for 2 weeks and during the preflight he found water in the fuel tank sumps. He also drained the gascolator but stated that the fluid he saw in the cup was not fuel but water. He stated he thought it was fuel because it was all the same color. After the airplane was recovered he found water in the gascolator and the carburetor fuel bowl.

Aircraft

Registration
N3688M
Reported as
Piper PA-12
Category
Airplane
Serial number
12-2634
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
John G. Rice
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 28, 1995 · 275 hours before
Departed
Cordova Bay, AK
Destination
Ward Cove, AK
Flight plan
VFR

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
31
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
1,345 total · 375 in this make and model · 1,058 as pilot in command · 279 in the last 90 days · 267 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 20 knots
Visibility
20 statute miles
Lowest ceiling
None

FAA reports on this event · 1

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