WPR21LA318 · North American T-28B
Buno 138314 North American T-28B · Accident: loss of control on ground during landing
From TKE · Truckee, CA to an unrecorded destination
Narrative check · The NTSB narrative appears to contradict this record's departure or destination. Values are shown as recorded, not corrected; compare with the narrative.
Event
- NTSB case
- WPR21LA318
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- Event fatalities
- Unknown
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
North American T-28B
- Aircraft type
- North American T-28
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N392W
- Operator
- Buno 138314
- Onboard fatalities
- Unknown
- Route Possible conflict
- From TKE · Truckee, CATo not recorded
- Aircraft age
- About 66 years (built 1955)
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Landing · landing roll
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Loss of control on ground
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
- Aircraft › Aircraft systems
- Not determined › Not determined
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot reported that, after touchdown the nose wheel started to shimmy, and he was not able to steer the airplane. The airplane veered to the left side of the runway as the pilot continued to try and steer away from the edge of the runway using the right brake. When the left main landing gear wheel went off the edge of the runway, he initiated the emergency procedures to retract the landing gear, shut down the engine and open the canopy. Examination of the wreckage revealed that the nose wheel steering components and the hydraulic shimmy damper appeared to remain intact and attached to their respective mounts. The shimmy damper piston rod was actuated by hand and found to compress and extend normally. No hydraulic fluid leaks were observed on the damper. No evidence of a pre-accident mechanical failure or malfunction was revealed that would have precluded normal operation. The reason for the nose wheel shimmy could not be determined from available evidence.
Probable cause
A nose wheel shimmy during the landing roll for reasons that could not be determined from the available evidence, which led to a loss of directional control.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR21LA318
- Event ID
- 20210816103700
- Case number
- WPR21LA318
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status, cause areas. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 393ab01e008688fabe93b7315b422e60fadcd10382a0e08ac5beebf41fcd83b8; retrieved 2026-09-16T14:25:10.773Z.