LAX99LA188 · Cessna 414
Cessna 414 · Accident: total loss of engine power (non-mechanical) en route
From Reid-Hillview Airport of Santa Clara County (RHV) to Redding Municipal Airport (RDD)
Event
- NTSB case
- LAX99LA188
- 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
Cessna 414
- Aircraft type
- Cessna 414
- 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
- N8153Q
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Reid-Hillview Airport of Santa Clara County (RHV), San Jose, CATo Redding Municipal Airport (RDD), Redding, CA
- 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
- En route · cruise
- 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
- Total 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
- Fuel contamination
- 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
- Airport personnel › Equipment, other, not maintained
- Airport personnel › Inadequate quality control
- Fluid, fuel › Contamination, other than water
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot refueled the auxiliary tanks of the airplane at a different airport 1 month prior to the accident, and had not flown on the auxiliary tanks since that time. He was repositioning the airplane back to home base after a series of revenue flights when the accident occurred. About 20 minutes after takeoff he positioned the left and right engines to their respective auxiliary fuel tanks, and then returned to the mains 30 minutes later. The right engine began to surge and subsequently stopped running. Turning on the fuel boost pump restarted the engine. Five minutes later the engine quit and he secured it after unsuccessful restart attempts. Then the left engine began to surge and was developing only partial power. He diverted to an alternate airport with decaying altitude and power in the remaining engine. Crossing the airport, he saw he was too high to land with a tailwind so he circled to land into the wind. On the base leg he made the decision to land straight ahead in a field due to power lines in his path, rapidly decaying altitude, and power. During the landing roll, the airplane collided with a ditch. The left and right main fuel filters contained a foreign substance, which upon laboratory examination, was found to be a polyacrylamide. This is a manmade synthetic polymer that is used as an agricultural soil amendment that aids in reducing soil erosion. Distribution of the polymer is typically not done by aircraft. Inspection of the fueling facility revealed that the employees who do refueling did not have any formal or on-the-job training. There was no record that the delivery system filters had been examined or changed. The maintenance to the truck, delivery system, and storage facility are done by the employees on an as needed, time permitted basis. The fuel truck was found to be improperly labeled, and the fuel nozzle was lying in a compartment amid dirt, gravel, and other contaminates with no caps or covers for protection.
Probable cause
A loss of engine power in both engines due to fuel contamination, which resulted from the fueling facilities improper quality control procedures.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX99LA188
- Event ID
- 20001212X18817
- Case number
- LAX99LA188
- 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: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 1999-05-22.
- API snapshot SHA-256: c9d73a37e8d082c47d08b4167054306a2aabe15840653869ece06c0f662941d9; retrieved 2026-09-21T20:32:07.319Z.