# NTSB FTW84LA247: Germany Wetherell Sonerai I, N92CL, Leander, TX, May 28, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 28, 1984, 16:00 local (21:00 UTC)
- Place: Leander, TX
- Coordinates: 30.559013, -97.860198 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.5590&lon=-97.8602&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 21345
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW84LA247
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/21345/pdf
- Page: https://openairdocs.org/ntsb/FTW84LA247

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power(partial) - mech failure/malf, approach
  - throttle/power lever,cable - bent (cause)
- Forced landing, descent - emergency
- In flight collision with object, descent - emergency
  - object - tree(s) (contributing factor)
  - clearance - not possible, pilot in command
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

PRIOR TO THE FLIGHT THE PLT ADJUSTED THE CARBURETOR. A LOCAL FLIGHT WAS MADE TO TEST THE CARBURATOR. DURING THE GLIDING APCH TO THE RWY THE PLT NOTICED THE ENG IDLE POWER WAS 1400 RPM. WHILE ON BASE LEG THE PLT ADVANCED THE THROTTLE, HOWEVER, ENG PWR REMAINED AT 1400 RPM. THE PLT, UNABLE TO REACH THE ARPT, ATTEMPTED A LNDG IN AN OPEN FIELD. THE ACFT COLLIDED WITH THE TOP OF A TREE SHORT OF THE FIELD.BOTH WINGS WERE DAMAGED. EXAMINATION OF THE ACFT DISCLOSED THAT THE THROTTLE CABLE WAS KINKED.

## Aircraft

- Registration: [N92CL](https://openairdocs.org/deregistered/N92CL-2013-09-12), registration cancelled 2013-09-12, S/N 521, built 1982 (OpenAirDocs)
- Reported make and model: GERMANY WETHERELL SONERAI I
- Registry model: [Langerud Clarence SONERAI II](https://openairdocs.org/model/langerud-clarence-sonerai-ii) (registry code 05659Q8) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 521
- Airframe hours: 125
- Engines: Volkswagen UNKNOWN 35 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Clarence I Langerud
- Registered owner: Clarence I. Langerud
- Airworthiness certificate: Special, Experimental (Special)
- Departed: 77T, LEANDER, TX

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 5,000 total, 125 in this make and model, 10 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 5 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 (OpenAirDocs).

- [Accident 19840528023989A](https://openairdocs.org/incident/19840528023989A), May 28, 1984: Amtrmo SONERAI, Leander, TX, Substantial damage. Unable to add power when throttle cable kinked on approach for landing. Struck a tree on off airport landing.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.