WPR09LA423

NTSB accident investigation · Cessna TU206G · Ballard, WA · August 28, 2009

Accident · Minor injuriesLimited investigationFinal report
Date
August 28, 2009, 06:48 local (13:48 UTC)
Place
Ballard, WA
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N682RCCessna TU206G
Defining event
Enroute-cruise: Electrical system malf/failure
Weather
Visual (VMC) · Day
Status
Completed · report July 22, 2010
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20090828017789A
Case key
74621

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 precautionary water landing with partially extended landing gear. Contributing to the accident was the unidentified anomaly with the airplane's electrical system, which rendered the gear position indicator system inoperative.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: use of equip/systemPersonnel issues › Task performance · PilotCessna TU206G: 3 casesAll aircraft: 1,391 casesProbable cause
Electrical power system: dC generation systemAircraft › Aircraft systems · InoperativeCessna TU206G: 1 caseAll aircraft: 6 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that about 15 minutes after taking off from a runway in an amphibious airplane, all electrical power was lost. The pilot also observed that the fuel gauges indicated empty, and he became concerned about continuing his flight over populated areas. Therefore, he chose to make a precautionary water landing to a nearby marina to check his fuel state and investigate the electrical problem. Prior to landing, the pilot reported that he attempted to hand pump the landing gear up. He was able to visually confirm that both of the front gear were raised, however, due to the electrical failure, the gear position indicator was inoperative and he was unable to verify if the main gear were retracted. During the water landing, the left main aft gear was still extended and upon touchdown, the left pontoon lifted and the right wing tip impacted the water. The airplane pitched forward and nosed over. The reason for the electrical failure was not determined due to damage from the airplane's immersion in salt water.

Factual narrative

On August 28, 2009, about 0648 Pacific daylight time, a Cessna TU206G, N682RC, nosed over during landing in the Shilshole Bay, Ballard, Washington. The pilot owned and operated the amphibious airplane. Visual meteorological conditions prevailed at the time of the personal flight, and no flight plan had been filed. The airplane was substantially damaged, and the commercial pilot received a minor injury. The flight was performed under the provisions of 14 Code of Federal Regulations Part 91, and it originated in Bremerton, Washington, about 0630. The pilot reported to the National Transportation Safety Board investigator that about 15 minutes after taking off from the Bremerton National Airport, he experienced an electrical problem with his airplane. All electric current was lost. As a result, the airplane's fuel gauges indicated empty and he became concerned about flying over populated areas. Rather than continuing his intended flight to Payne Field, in Everett, Washington, the pilot opted to land in the Shilshole Bay marina to check his fuel state and investigate the electrical problem. The pilot stated that he attempted to raise the landing gear by using the emergency gear retraction hand pump. He was able to confirm that both of the front gear were raised into the pontoons. However, the left main aft gear was still extended; it did not fully retract. Upon touchdown in the water, the extended gear lifted the left pontoon up, and the right wing tip impacted the water. The airplane pitched forward, nosed over, and came to rest upside down in the salt water. The pilot further reported that without electrical power, the gear position indicator was inoperative. Federal Aviation Administration (FAA) representatives examined the airplane following its recovery from the water. Due to the airplane's immersion in the water, no determination was made regarding the preimpact functionality of the airplane's electrical system.

Aircraft

Registration
N682RC
Reported as
Cessna TU206G
Category
Airplane
Serial number
U20605537
Airframe hours
2,802
Engine
Cont Motor TSIO-520 SER, 310 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal; Special, Restricted (Special)
Last inspection
Annual · April 10, 2009 · 31 hours before
Departed
PWT · Bremerton, WA
Destination
PAE · Everett, WA

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
51
Injuries
Minor
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
June 12, 2009
Seat
Left
Flight hours
1,214 total · 251 in this make and model · 36 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F
Altimeter
30.07 inHg

Docket · 4

The files NTSB released with the investigation on June 18, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 812 KB in all.

FAA reports on this event · 1

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