WPR18LA094 · Soko GALEB G 2 A
Soko GALEB G 2 A · Accident: system/component malfunction/failure (non-power) on approach
From Reno-Stead Airport (RTS) to Elko Regional Airport (EKO)
Event
- NTSB case
- WPR18LA094
- 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
- API-reported fatalities
- 0 · all aircraft and ground
- 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
Soko GALEB G 2 A
- Aircraft type
- Soko GALEB G 2
- 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
- N90SR
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Reno-Stead Airport (RTS), Reno, NVTo Elko Regional Airport (EKO), Elko, NV
- Aircraft age
- About 52 years (built 1966)
- 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
- Approach
- 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
- System/component malfunction/failure (non-power)
- 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 systems
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot reported that, upon initial landing the airplane, the left brake was inoperative, and he chose to conduct a go-around and set up for a single-brake landing. The subsequent landing was uneventful, but the left brake was still inoperative. The pilot reported that, with about 1,500 ft of runway remaining, he chose to veer the airplane off the runway to the right to avoid running off the end. Subsequently, the airplane struck a drainage ditch berm, which resulted in substantial damage to the fuselage. Examination and disassembly of the hydraulically driven left brake assembly revealed that the No. 2 brake cylinder had not been properly installed, which allowed the brake pucks to move and resulted in three of them separating from the brake assembly. The separation of the brake pucks resulted in the No. 2 cylinder's piston being moved to the full-scale inward position. Subsequently, the No. 2 cylinder's piston then fully deflected, which resulted in a hydraulic leak that subsequently led to insufficient hydraulic pressure being provided to the other brake cylinders and subsequently to the left brake being inoperative during landing.
Probable cause
An improperly installed brake cylinder, which resulted in insufficient hydraulic pressure being provided to three of the brake cylinders and the left brake being inoperable during landing.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR18LA094
- Event ID
- 20180221X43129
- Case number
- WPR18LA094
- 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. 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: 5933970c20d2eaacb1bc692b7be28be465d623c8eb33ef49caea0a267e6ca792; retrieved 2026-09-16T06:30:03.894Z.