Plane Crash List

Teratorn TIERRA II UNREG

22 April 1984 · Chico, California, United States · Fatal

Summary

On 22 April 1984 at about 03:00 local time, a Teratorn TIERRA II registered UNREG was involved in an accident near Chico, California, United States. One person was on board and one died. The aircraft was destroyed. No probable cause statement is available for this record.

The record

Date
at 03:00
Classification
Accident
Location
Chico, California, United States
Coordinates
39.4594, -121.9301
Aircraft
Teratorn TIERRA II
Registration
UNREG
Category
Ultralight
Engines
1
Operator
Not recorded
Operating rule
Part 103: Ultralight
Purpose of flight
Personal
Phase of flight
Not recorded
Aircraft damage
Destroyed
Weather
VMC
Light
Dusk
NTSB number
LAX84FU026

People

1 person died.

On board Died Serious Minor Uninjured
1 1 0 0 0

Probable cause

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

THE ULTRALIGHT WAS BEING TEST FLOWN AFTER ALTERATIONS TO THE ACFT & ITS FLIGHT CONTROL SYSTEM. THE PLT PUT THE ACFT THROUGH SOME MANEUVERS AND DURING ONE OF THEM, DESCRIBED BY WITNESSES AS A CHANDELLE, THE ACFT NOSED DOWN & CRASHED INTOTHE GROUND. THE ACFT DOVE FROM ABOUT 300 FT AGL. INVESTIGATION REVEALED THAT AN ELEVATOR CONTROL SEAT HORN HAD FAILED & SEPARATED IN FLT. PARTS OF THIS FAILED PART WERE NOT FOUND IN THE WRECKAGE. THIS CONTROL PART HAD BEEN MODIFIED WITH MORE SPACING WASHERS THAN REQUIRED WHICH INCREASED ITS TORSIONAL LOADING. AFTER THIS FAILURE, THE PLT HAD NO CONTROL OVER THE ACFT ELEVATOR.

Quoted verbatim from the NTSB record.

Other Teratorn TIERRA accidents

Date Aircraft Location Operator Outcome Died
18 Jun 1985 Teratorn TIERRA II
N4438V
Lake Charles, Louisiana, United States - Fatal 1
18 Sep 1983 Teratorn TIERRA II
UNREG
Dallas, North Carolina, United States Ultra Flight Corp. Minor injuries -
24 Aug 1983 Teratorn TIERRA
UNREG
Pepin, Wisconsin, United States
no coordinates
Ernest Kamrath Fatal 1
29 Sep 1985 Teratorn TIERRA II
UNREG
Post Falls, Idaho, United States Dale A. Carter Fatal 2
12 Aug 1986 Teratorn TIERRA 2
N5575Y
Dixon, Iowa, United States - No injuries -
8 Aug 1988 Teratorn TIERRA II
N68JM
Plevna, Kansas, United States - Serious injuries -

All 8 records for this type

Other accidents in this area

Date Aircraft Location Operator Outcome Died
28 Jan 1984 Cessna 401A
N7KF
San Francisco, California, United States - No injuries -
4 Aug 1984 Eipper QUICKSILVER MX
UNREG
Thousand Oaks, California, United States - Serious injuries -
5 Feb 1984 Hughes 500C (369HS)
N8319F
San Diego, California, United States - Serious injuries -
5 Feb 1984 Cessna 180J
N52034
Hayward, California, United States - Serious injuries -
14 Jul 1984 Piper PA-31T
DIKKS
Concord, California, United States - Fatal 6
5 Feb 1984 Cessna 150M
N3189V
Fremont, California, United States Fremont Flying Service No injuries -

All 170,864 records in United States