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LAX99FA242 · Beech 58

4 Jul 1999 · Hilo, HI, United States

Beech 58 · Accident: partial loss of engine power (non-mechanical) during initial climb

From Hilo International Airport (ITO) to Oakland San Francisco Bay Airport (OAK)

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Event

NTSB case
LAX99FA242
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
1 · 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

Beech 58

Aircraft type
Beechcraft 58
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
N971GA
Operator
Unknown
Onboard fatalities
Unknown
Route
From Hilo International Airport (ITO), HILO INTL, HITo Oakland San Francisco Bay Airport (OAK), Oakland, 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
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/mush
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

  • Fuel system, vapor return system › Not installed
  • Pilot in command › Maintenance, installation, improper

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

In the takeoff initial climb after a 3,000-foot ground roll, the pilot radioed, 'Can't make it,' and that he was returning to land. The airplane impacted the runway 6,300 feet from the start of the takeoff roll and burned. The pilot was hired to ferry the airplane on an FAA issued Special Flight Permit from Japan to Illinois. The pilot held a FAA airframe and power plant technician certificate with inspection authority, and was to supply and install the fuel tank system necessary for the long-range trans-Pacific flight. While en route to Honolulu, he diverted to Johnston Atoll, due to a fuel flow problem from the ferry tanks to the aircraft fuel system. The pilot discussed the problem with the aircraft owner, and the routing of the ferry fuel tank hoses and potential interference by airplane structure and landing gear was discussed as a possible problem area. After an 18-day delay, and prior to departure, the airplane was fueled with 50 gallons of 100LL aviation fuel sent to Johnston Atoll by barge, and 50 gallons of automotive fuel provided by the military. The airplane was then flown to Honolulu, where the pilot locally purchased and installed an additional 45-gallon fuel tank, then on to Hilo. The departure at Hilo was for the estimated 2,023-mile leg to Oakland, California. The airplane was operating in an over-gross weight condition, which was within the authorized ferry flight weight limitation; however, the CG was in excess of 2 inches aft of the aft limit. The CG variance was not authorized in the ferry permit. The left engine was removed and successfully run meeting all Continental test parameters. Disassembly of the left propeller disclosed marks consistent with operation at, or very near, low pitch stop at the time of impact, indicating something less than full power. Automotive type rubber hoses were found routed and draped from ferry fuel tanks to the main gear wheel wells and through the airplane center section. An auxiliary tank hose was found draped through the left landing gear retract brace. The hose had evidence of being compressed by interference with the airplane structure and the gear retract braces. No vapor return line to the left tank was found.

Probable cause

The pilot's improper fuel system modifications resulting in inadequate fuel flow to the left engine during a critical phase of flight. Factors in the accident were the operation at an over gross weight condition with a CG more than 2 inches aft of the rear limit.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record LAX99FA242
Event ID
20001212X19291
Case number
LAX99FA242
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: ff2da50da491cbba1a5db6a2aa6428be2dee58e5eaecb2609ebff2f59ea873c9; retrieved 2026-09-20T22:00:46.961Z.