SEA02LA182 · Cessna 172RG
Cessna 172RG · Accident: airframe, component or system failure during landing
From Billings Logan International Airport (BIL) to Billings Logan International Airport (BIL)
Event
- NTSB case
- SEA02LA182
- 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
Cessna 172RG
- Aircraft type
- Cessna 172
- 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
- N6525R
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Billings Logan International Airport (BIL), Billings, MTTo Billings Logan International Airport (BIL)
- Aircraft age
- Not recorded
- 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
- First occurrenceThe 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
- Airframe, component or system failure
- 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
- Hydraulic system, actuator › Fatigue
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The pilot reported that after completing commercial maneuvers for a commercial check ride, the flight returned to the airport for touch-and-go landings. While in the pattern, the landing gear was extended, however, the right main landing gear did not fully extend. Several attempts were made to extend the right main with no success. The aircraft was eventually landed with the left main and nose gear extended. When the aircraft settled on the right side, the aircraft skidded off the runway. Post crash inspection of the right main landing gear found that the main landing gear actuator was broken. Examination of the actuator determined that the component fractured in two locations. The fracture surfaces indicated the presence of closely spaced fatigue striations on the fracture surfaces that were located at the housing roller. The fracture surfaces that were located at the forward attaching bolt were indicative of overload.
Probable cause
The failure of the landing gear actuator during landing as a result of fatigue.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA02LA182
- Event ID
- 20021003X05274
- Case number
- SEA02LA182
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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, coordinates. 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: 20284ab33b7d36045b4dae7c137d0dfa90c866400fc3d4e1d656d13f9c0b31fd; retrieved 2026-09-22T10:11:21.556Z.