ERA17LA204 · Piper PA 44-180
Piper PA 44-180 · Accident: landing gear collapse
From Carroll County Regional Jack B Poage Field (DMW) to Montgomery County Airpark (GAI)
Event
- NTSB case
- ERA17LA204
- 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
Piper PA 44-180
- Aircraft type
- Piper PA-44
- 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
- N3020M
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Carroll County Regional Jack B Poage Field (DMW), Westminster, MDTo Montgomery County Airpark (GAI), Gaithersburg, MD
- Aircraft age
- About 38 years (built 1979)
- 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
- Landing gear collapse
- 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
According to the flight instructor, after an uneventful training flight, the airplane was returning to home base. After touchdown and during the landing roll, the airplane veered to the right of the centerline and stopped. The instructor exited the airplane and discovered that the right main landing gear had collapsed. Postaccident examination of the landing gear revealed that the right aft main landing gear trunnion bracket had failed and that the wing spar web was damaged. A visual examination of the fracture surfaces revealed that the landing gear trunnion bracket failed during an overstress event. A review of the logbooks did not reveal any recent maintenance to the gear assembly. The investigation could not determine when the overstress event occurred that resulted in the failure of right main landing gear trunnion bracket.
Probable cause
The failure of the right main landing gear trunnion bracket due to an undetermined overstress event.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA17LA204
- Event ID
- 20170609X91950
- Case number
- ERA17LA204
- 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: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2017-06-09.
- API snapshot SHA-256: 25b24dc2c2b98f6e8d5d293110e6abf6420e5134b2715879331d2ab2676c9aae; retrieved 2026-09-16T05:23:27.393Z.