ERA18LA021 · SOCATA TB200 XL
1World Aero SOCATA TB200 XL · Accident: powerplant system/component malfunction/failure while maneuvering
From Fort Meade Executive Airport (FME) to Fort Meade Executive Airport (FME)
Event
- NTSB case
- ERA18LA021
- 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
SOCATA TB200 XL
- Aircraft type
- Socata TB200
- 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
- N207GT
- Operator
- 1World Aero
- Onboard fatalities
- Unknown
- Route
- From Fort Meade Executive Airport (FME), Fort Meade, MDTo Fort Meade Executive Airport (FME), Fort Meade, MD
- Aircraft age
- About 16 years (built 2001)
- 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
- Maneuvering
- 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
- Powerplant system/component malfunction/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
- Not determined › Not determined
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot stated that, about 45 minutes after departure, he felt a subtle vibration in the engine. A few minutes later, the propeller rpm increased uncommanded to 2,700 rpm and remained "pegged at the redline." The pilot was unable to control the rpm and the vibration increased, followed by smoke in the cabin and a loss of engine power; the pilot subsequently performed a forced landing, impacted a pole and guardrail, and the left wing and horizontal stabilator separated. Postaccident examination of the engine revealed that the propeller governor control arm had disconnected from the propeller governor. It is likely that during maintenance conducted 5 months before the accident, the linkage was not properly secured, and the bolt eventually backed out of the propeller control arm, which resulted in the separation; however this would not have directly resulted in the loss of engine power. The examination of the airframe and engine was otherwise unable to identify a definitive cause for the loss of engine power.
Probable cause
A loss of engine power for undetermined reasons after the disconnection of the propeller governor control due to inadequate securenment during maintenance.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA18LA021
- Event ID
- 20171111X81525
- Case number
- ERA18LA021
- 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: 0b4b4081dd6759eeec09aa5d57caf34affe7cd75c50f65c5f98ad00a75204add; retrieved 2026-09-16T05:59:43.314Z.