Waco KNF NC698N
24 July 1991 · Wendover, Utah, United States · No injuries
Summary
On 24 July 1991 at about 14:15 local time, a Waco KNF registered NC698N, operated by William C. Phelps, was involved in an accident near Wendover, Utah, United States. 2 people were on board and nobody was injured. 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 14:15
- Classification
- Accident
- Location
- Wendover, Utah, United States
- Nearest airport
- Wendover Field (ENV)
- Coordinates
- 40.9702, -111.5105
- Aircraft
- Waco KNF
- Registration
- NC698N
- Category
- Airplane
- Engines
- 1
- Operator
- William C. Phelps
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Elko → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA91LA188
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
PILOT INSTALLED AN IMPROPER 'O' RING WHICH RESTRICTED NORMAL LANDING GEAR EXTENSION AND SUBSEQUENT LOSS OF CONTROL BY THE PILOT.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE PILOT OF THE WACO KNF WAS UNABLE TO CONTROL HIS AIRCRAFT WHEN IT PULLED HARD TO THE RIGHT UPON LANDING. THE AIRCRAFT RAN OFF THE SIDE OF THE RUNWAY AND FLIPPED OVER IN THE SOFT DIRT. THE PILOT HAD ADDED AN UNAUTHORIZED O-RING ON TOP OF THE OLEO STRUT SEAL. HE SAID THAT THE SEAL WAS LEAKING AND HE WAS UNABLE TO FIND A REPLACEMENT IN THE LOCAL AREA, WHILE ON A CROSS-COUNTRY FLIGHT. AFTER DEPARTURE THE NEXT MORNING THE STRUT FAILED TO FULLY EXTEND, WHICH CAUSED THE AIRCRAFT TO BECOME DIFFICULT TO CONTROL UPON LANDING.
Quoted verbatim from the NTSB record.
Other Waco KNF accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 15 Aug 1997 | Waco KNF | Wamsutter, Wyoming, United States | - | No injuries | - |
| 5 Nov 1999 | Waco KNF | Midway, Arkansas, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 31 Mar 1991 | Cessna 172M | Ogden, Utah, United States | Alta Aircraft | No injuries | - |
| 26 Apr 1991 | Cessna 180 | Vernal, Utah, United States | Grant R. Wilson | No injuries | - |
| 5 May 1991 | Richard Cheney TERATORN TIERRA II | Morgan, Utah, United States | Edward R. Olson | Serious injuries | - |
| 19 May 1991 | Beechcraft B23 | Spanish Fork, Utah, United States | Samuel J. Hammond | No injuries | - |
| 17 May 1991 | Cessna TR182 | Green River, Utah, United States | JAY B. Sorenson | No injuries | - |
| 26 May 1991 | Dave Ronneberg LONG-EZE | Kanab, Utah, United States | Dave H. Ronneberg | Serious injuries | - |