ASN Wikibase Occurrence # 276714
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| Date: | Friday 18 March 2022 |
| Time: | 20:15 LT |
| Type: |  Lancair ES |
| Owner/operator: | Unruh Leasing LLC |
| Registration: | N4949B |
| MSN: | ES-180 |
| Year of manufacture: | 2006 |
| Total airframe hrs: | 868 hours |
| Engine model: | Continental TSIO-550-B2B |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | General Dick Stout Field Airport (1L8), Hurricane, UT -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | West Valley, UT (U42) |
| Hurricane, UT | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot of the airplane reported that, during the landing roll, the airplane was not slowing as expected. The pilot firmly applied braking action with no corresponding slowing action from the airplane. When he and his passenger saw the departure end of the runway approaching, they both applied as much brake pressure as possible without any effect. The airplane departed the runway and came to rest in a ditch, resulting in substantial damage to the engine mount.
The airplane's brake system was inspected by a mechanic who reported that the left side brake functioned, however it had a minor amount of air in the system and may not have had the same working pressure as the right-side brake.
The pilot reported that there were no other preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Probable Cause: Loss of brake pressure on the left brake due to air in the brake line which, resulted in a runway over run and collision with a ditch.
Accident investigation:
 |
|
Sources:
NTSB WPR22LA128
FAA register: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4949B
https://flightaware.com/live/flight/N4949B/history/20220319/0127Z/U42/1L8
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Mar-2022 02:49 | Geno | Added |
| 21-Mar-2022 03:00 | Geno | Updated [Date, Aircraft type, Source] |
| 21-Mar-2022 07:00 | RobertMB | Updated [Registration, Cn, Operator, Location, Nature, Departure airport, Destination airport, Source, Damage, Narrative] |
| 21-Mar-2022 07:01 | RobertMB | Updated [Narrative] |
| 21-Mar-2022 19:47 | Captain Adam | Updated [Source, Damage, Narrative] |
| 23-Mar-2022 19:20 | RobertMB | Updated [Damage, Narrative] |
| 15-Jul-2022 10:22 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Damage, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
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