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ASN Wikibase Occurrence # 236519
Last updated: 18 September 2021
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Date:28-MAY-2020
Time:16:00
Type:Silhouette image of generic AC50 model; specific model in this crash may look slightly different
Aero Commander 500S Shrike
Owner/operator:State of Alaska
Registration: N909AK
MSN: 3232
Fatalities:Fatalities: 0 / Occupants: 4
Other fatalities:0
Aircraft damage: Substantial
Location:2.5 miles W of Aniak Airport (ANI/PANI), Aniak, AK -   United States of America
Phase: Initial climb
Nature:Passenger - Non-Scheduled/charter/Air Taxi
Departure airport:Aniak Airport, AK (ANI/PANI)
Destination airport:Soldotna Airport, AK (SXQ/PASX)
Narrative:
The airline transport pilot and three passengers sustained serious injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 public aircraft flight.

The airplane was owned by the State of Alaska, and operated by the Division of Forestry. The purpose
of the flight was to move personnel around the state in support of wildland firefighting operations.
According to the pilot, after arriving in Aniak, he had the local fuel vendor's ground service personnel
refuel the airplane. He then signed the fuel receipt, and he returned to the airplane's cockpit to complete
some paperwork before departure. Once the paperwork was complete, he then loaded his passengers,
started the airplane's engines, and taxied to Runway 29 for departure.

The pilot said that shortly after takeoff, and during initial climb, he initially noticed what he thought was
mechanical turbulence followed by a reduction in climb performance, and the airplane's engines began
to lose power. Unable to maintain altitude and while descending about 400 ft per minute, he selected an
area of shallow water covered terrain as an off-airport landing site. The last thing the pilot remembered
of the accident flight was guiding the airplane to the off-airport landing site.

According to the fuel vendors fuel truck driver, he was unfamiliar with the airplane, so he queried the
pilot as to where he should attach the grounding strap and the location of the fuel filler port. Before
starting to refuel the airplane, he asked the pilot "do you want Prist with your Jet" to which the pilot
responded that he did not. After completing the refueling process, he returned to his truck, wrote "Jet A"
in the meter readings section of the prepared receipt, and presented it to the pilot for his signature. The
pilot signed the receipt and was provided a copy. The fueler stated that he later added "no Prist" to his
copy of the receipt.

A postaccident examination revealed that the reciprocating engine airplane had been inadvertently
serviced with Jet A fuel. A slightly degraded placard near the fuel port on the top of the wing stated, in
part: "FUEL 100/100LL MINIMUM GRADE AVIATION GASOLINE ONLY CAPACITY 159.6 US
GALLONS". (see figure 1).

Sources:

https://www.ktuu.com/content/news/Forestry-plane-crashes-near-Aniak-all-survive-570852661.html
https://fireaviation.com/2020/05/28/plane-carrying-firefighters-crashes-in-alaska/
https://flightaware.com/live/flight/N909AK
https://www.adn.com/alaska-news/aviation/2020/07/17/wrong-fuel-added-before-crash-of-alaska-forestry-plane-that-injured-pilot-and-3-firefighters-ntsb-says/
https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/101338/pdf

https://www.airteamimages.com/pics/242/242010_big.jpg (photo)

Location

Media:


Images:

Photo of N909AK courtesy AirHistory.net


Palmer - Buddy Woods Municipal (PAAQ / PAQ)
8 May 2010; (c) Bob Garrard

Revision history:

Date/timeContributorUpdates
29-May-2020 05:16 Geno Added
29-May-2020 05:27 Geno Updated [Aircraft type, Registration, Cn, Operator, Destination airport, Source]
29-May-2020 07:56 RobertMB Updated [Location, Phase, Nature, Destination airport, Source, Narrative]
29-May-2020 17:49 Anon. Updated [Nature]
19-Jul-2020 14:14 Aerossurance Updated [Location, Source, Embed code, Narrative]
24-Jun-2021 07:26 aaronwk Updated [Time, Location, Source, Embed code, Narrative]

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