ASN Wikibase Occurrence # 45100
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| Date: | Thursday 28 August 2003 |
| Time: | 08:38 |
| Type: | Petz Flying Boat |
| Owner/operator: | Private |
| Registration: | N1216Z |
| MSN: | 002 |
| Engine model: | Mazda 13B/20B |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Tracy, CA -
 United States of America
|
| Phase: | Take off |
| Nature: | Test |
| Departure airport: | Tracy, CA (KTCY) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A single engine, amphibian, four person airplane, designed and built by the pilot, lost propeller thrust and collided with terrain. Witnesses stated the airplane took off and climbed to about 150 feet, when it started to turn back to the airport. As it turned, it descended into a gravel pit area, collided with a raised embankment, and was immediately engulfed in fire. Examination of the wreckage revealed that the engine exhaust outlet was about 9 inches from the composite propeller. Hot exhaust gasses from the outlet weakened the propeller blades, ultimately resulting in propeller failure and lost of propeller thrust.
Probable Cause: The inadequate design of the engine exhaust system and inappropriate selection of propeller materials by the designer/builder, which resulted in separation of the propeller blades during takeoff/initial climb, and a subsequent in-flight collision with terrain during the ensuing off-airport emergency landing.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20030904X01455&key=1
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Oct-2008 00:45 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 08-Dec-2017 19:10 | ASN Update Bot | Updated [Operator, Destination airport, Source, Narrative] |
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