IAD99LA044 · Mayers SEA REY
Mayers SEA REY · Accident: loss of engine power during initial climb
From No airport to an unrecorded destination
Event
- NTSB case
- IAD99LA044
- 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
- 0
- 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
Mayers SEA REY
- Aircraft type
- Mayers SEA REY
- 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
- N100RZ
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From No airportTo not recorded
- 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
- Loss of engine power
- 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
- Fuel starvation
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Fluid, fuel › Starvation
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The home-built airplane, equipped with a 2 cycle non-certificated engine, departed on a test flight after installation of a new engine ignition part. The part was installed in an attempt to resolve a recurrence of engine power interruptions. The pilot reported the airplane climbed to approximately 100 feet above the trees at the departure end of the runway when it experienced a partial loss of engine power followed shortly by a complete loss of engine power. Maintenance records revealed a mechanic examined the airplane in the month prior to the accident to 'determine where loss of power is from.' After the work, a note was attached to the work order describing a loss of power during climb out, air bubbles in the fuel line, and the customer's need to investigate the fuel system further. The mechanic noted that the bubbles disappeared from the line when the booster pump was engaged. Examination of the wreckage revealed a chaffed fuel supply line to the engine driven pump. The engine started and ran in a test cell after the accident without interruption.
Probable cause
was a loss of engine power for undetermined reasons.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record IAD99LA044
- Event ID
- 20001212X18792
- Case number
- IAD99LA044
- 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. 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: c8372a0dbd8ac871d481884dc1e50135996a660e8003dc4d2f91ef6eab7e0371; retrieved 2026-09-21T11:03:35.894Z.