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20010602029919A

Accident · Substantial damage
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FAA accident report · Helio H-391B · Anvik, AK · June 2, 2001

FAA Aviation Safety Information Portal

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Date
June 2, 2001 · 09:30 local
Place
Anvik, AK
Phase of flight
To Aborted (Fixed Wing)
Operating rules
General operating rules (Part 91)
Damage
Substantial damage
Aircraft
N25BA
NTSB investigation
NTSBANC01LA066
Reported as
Helio H391B
People aboard
1
Fatal injuries
0
N25BARegistration cancelled Jul 16, 2008 · Helio H-391BS/N 011 · Built 1955Airframe modelHelio H-391BEngine modelLycoming GO-435C&D seriesReciprocating

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

(-23) On June 2, 2001, at about 0930. Aircraft N25BA a float-equipped Helio courier H391B sustained substantial damage during an aborted takeoff from the Anvik river. The certificated private pilot was the sole occupant and did not receive injuries. On June 13, 2001, the pilot ferried the aircraft to wolfe lake, wasilla, Alaska for repair estimate. The pilot reported that floats were recently installed. Pilot departed from the right bank and up current for take off. The Anvik river was running about 4 knots of current. Aircraft was veering to the left and noticed that he did not have enough right water rudder control. To avoid the riverbank, he pulled his power and the aircraft glided into the embankment. The left floats assembly received damage and the right wing slat struck a tree. Pilot asked a mechanic in Anvik to inspect aircraft and discovered that the water rudder centering cables were missing. The mechanic also noticed that the wrong springs installed and that the cables were attached incorrectly to the water rudder yoke. Also, the rudder stop was one half inch short of full stop block, according to the mechanic.

As the FAA filed it

(-23) ON JUNE 2, 2001, AT ABOUT 0930. AIRCRAFT N25BA A FLOAT-EQUIPPED HELIO COURIER H391B SUSTAINED SUBSTANTIAL DAMAGE DURING AN ABORTED TAKEOFF FROM THE ANVIK RIVER. THE CERTIFICATED PRIVATE PILOT WAS THE SOLE OCCUPANT AND DID NOT RECEIVE INJURIES. ON JUNE 13, 2001, THE PILOT FERRIED THE AIRCRAFT TO WOLFE LAKE, WASILLA, ALASKA FOR REPAIR ESTIMATE. THE PILOT REPORTED THAT FLOATS WERE RECENTLY INSTALLED. PILOT DEPARTED FROM THE RIGHT BANK AND UP CURRENT FOR TAKE OFF. THE ANVIK RIVER WAS RUNNING ABOUT 4 KNOTS OF CURRENT. AIRCRAFT WAS VEERING TO THE LEFT AND NOTICED THAT HE DID NOT HAVE ENOUGH RIGHT WATER RUDDER CONTROL. TO AVOID THE RIVERBANK, HE PULLED HIS POWER AND THE AIRCRAFT GLIDED INTO THE EMBANKMENT. THE LEFT FLOATS ASSEMBLY RECEIVED DAMAGE AND THE RIGHT WING SLAT STRUCK A TREE. PILOT ASKED A MECHANIC IN ANVIK TO INSPECT AIRCRAFT AND DISCOVERED THAT THE WATER RUDDER CENTERING CABLES WERE MISSING. THE MECHANIC ALSO NOTICED THAT THE WRONG SPRINGS INSTALLED AND THAT THE CABLES WERE ATTACHED INCORRECTLY TO THE WATER RUDDER YOKE. ALSO, THE RUDDER STOP WAS ONE HALF INCH SHORT OF FULL STOP BLOCK, ACCORDING TO THE MECHANIC.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.

NTSB ANC01LA066Accident · No injuriesLimited investigationFinal reportAnvik, AKThe pilot's continued operation of the accident airplane with known equipment deficiencies, and an improper installation of the float assembly by maintenance personnel. A factor in the accident was the pilot's delay in aborting the takeoff.Jun 2, 2001 · Substantial damage

Other reports on N25BA · 1

Matched to the same aircraft by N-number and date.

Accident 20020524011099ACheyenne, WY(-23) The pilot lost control of the aircraft on the runway just prior to take off. Gusting crosswinds prevailed at the time.May 24, 2002 · No damage