SEA07FA208 · Globe GC-1B
Globe GC-1B · Accident: partial loss of engine power (non-mechanical) during initial climb
From Cottage Grove State Airport (61S) to 61S
Event
- NTSB case
- SEA07FA208
- 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
- 2 · 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
Globe GC-1B
- Aircraft type
- Globe GC-1
- 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
- N3867K
- Operator
- Mark S. Clark · private individual
- Onboard fatalities
- Unknown
- Route
- From Cottage Grove State Airport (61S), Cottage Grove, ORTo 61S
- 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
- Initial climb
- 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
- Partial loss of engine power (non-mechanical)
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Stall
- 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
- Pilot in command › Airspeed(vs), not maintained
- Reason for occurrence undetermined
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The airplane was about 1,500 feet past the departure end of runway 15 in the takeoff initial climb when witnesses heard the engine cough and sputter. The engine rpm reportedly accelerated between the two or three times it coughed/sputtered, and soon thereafter the airplane's left wing dropped. Almost immediately after the wing dropped, the airplane rolled further to the left, and then descended below the tree line and impacted the surface of a small shallow pond about one-half mile from the departure end of the runway. The investigation found that prior to the February 2006 purchase of the 1948 Globe Swift by the current owner, the airplane was stored unused in a hangar for over 20 years. A number of inspections, adjustments, and component replacements were performed in order to prepare the airplane for an annual inspection, that was endorsed as having been completed on July 1, 2006. At the time of the accident, the airplane had been flown 5 hours since the annual inspection. Based on the occupant weights and the fuel load, the airplane was approximately 130 pounds over the maximum allowable gross weight. Extensive examination of the airframe and engine did not identify an anomaly or malfunction that would have contributed to the loss of engine power.
Probable cause
The partial/momentary loss of engine power during the takeoff initial climb for undetermined reasons, and the pilot's failure to maintain an airspeed above stall speed while maneuvering following the loss of engine power. Contributing to the accident was the operation of the airplane at a weight above Maximum Certified Gross Weight.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA07FA208
- Event ID
- 20070801X01078
- Case number
- SEA07FA208
- 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: c6d3d25746f8c6aa9b4db3ee5c511e78d5cbfccf6aadd59f5836204e3be3e409; retrieved 2026-09-20T16:27:27.632Z.