Glasair SH-2-RG N306AT
18 June 1991 · Visalia, California, United States · Minor injuries
Summary
On 18 June 1991 at about 20:40 local time, a Glasair SH-2-RG registered N306AT, operated by Frank R. Sigler, was involved in an accident near Visalia, California, United States. 2 people were on board and 2 had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 20:40
- Classification
- Accident
- Location
- Visalia, California, United States
- Coordinates
- 36.4001, -119.3796
- Aircraft
- Glasair SH-2-RG
- Registration
- N306AT
- Category
- Airplane
- Engines
- 1
- Operator
- Frank R. Sigler
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Fallbrook → Lake Tahoe
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- LAX91LA265
People
2 people had minor injuries.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 2 | 0 |
Probable cause
TOTAL LOSS OF ENGINE POWER DUE TO THE FAILURE OF THE NUMBER 4 ENGINE EXHAUST VALVE.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE CERTIFICATED PRIVATE PILOT/OWNER STATED THAT AN HOUR AND HALF INTO THE FLIGHT THE ENGINE STARTED TO RUN ROUGH AND LOST RPM. ALL INSTRUMENTS WERE IN THE GREEN. HE HEADED THE AIRCRAFT FOR A SUITABLE AIRPORT BUT THE ENGINE QUIT IN THE PATTERN. DUE TO WINDS HE WAS UNABLE TO MAKE THE RUNWAY. EXAMINATION OF THE ENGINE BY FAA INSPECTORS REVEALED THAT THE NUMBER 4 CYLINDER EXHAUST VALVE FAILED.
Quoted verbatim from the NTSB record.
Other Glasair SH-2 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 10 Jun 1992 | Glasair SH-2 | Danbury, Connecticut, United States | John M. Luders | Minor injuries | - |
| 6 Mar 1983 | Glasair SH-2 | 5 Nm E. of Kent, Washington, United States | - | Fatal | 1 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 20 Jul 1991 | Cessna C-172P | Hesperia, California, United States | South Bay Aviation | No injuries | - |
| 24 Jul 1991 | Cessna 172N | Napa, California, United States | Bridgeford Flying SVC. | No injuries | - |
| 24 Jul 1991 | Beechcraft 76 | Sacramento, California, United States | Altair Aviation Corp. | No injuries | - |
| 27 Jul 1991 | Ayres S2R | Visalia, California, United States | Gilbert Aviation Industries | Serious injuries | - |
| 1 Aug 1991 | Cessna 421C | Auburn, California, United States | Edward Mueller | No injuries | - |
| 2 Aug 1991 | Champion 7GCBC | Lake Elsinore, California, United States | Halbeisen, John F | Fatal | 2 |