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Accidents · NTSB WPR11LA070 · Final report

Bellanca 7KCAB accident near Corona, California, December 2, 2010

On December 2, 2010 at about 6:30 pm local time, a Bellanca 7KCAB, registered N11858, was substantially damaged in an accident during maneuvering near Corona, California. It was an instructional flight under general aviation rules (Part 91). 1 person had minor injuries; 1 other was unhurt. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The total loss of engine power due to oil exhaustion as a result of a broken oil line.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
December 2, 2010 · about 6:30 pm local time
Place
Corona, California · map
Type
Accident
Injuries
1 person had minor injuries; 1 other was unhurt.
Weather
visual conditions (good weather)
Aircraft
Bellanca 7KCAB · all 7KCABs on the register
Registration
N11858 · no longer on the register · serial 296-72
Damage
Substantial damage
Flight
Instructional flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

During an instructional flight, the engine experienced a total loss of power. The flight instructor took over the controls and made a forced landing on a golf course. During the landing roll, the airplane nosed over into a sand trap, damaging the tail and fuselage. Postaccident examination of the airplane revealed a large amount of oil covering the underside of the fuselage. Examination of the engine revealed that the oil pressure line had failed just aft of the “B” nut that connected the line to the engine fitting resulting in the loss of all engine oil. Chaff marks were noted on the metal sleeve between the “B” nut and the flexible portion of the line. These chaff marks were the result of rubbing against the bottom side of the engine shock mount assembly. When the undamaged end of the oil line was installed on the engine fitting, it was noted that there was visible clearance between the line and the engine shock mount. It is likely that, with the engine operating, vibration resulted in contact between the line and the mount.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Powerplant sys/comp malf/fail during maneuvering defining event
  2. Loss of engine power (total) during maneuvering
  3. Off-field or emergency landing during emergency descent
  4. Nose over/nose down during landing (landing roll)

The NTSB's findings

  • cause Aircraft › Aircraft power plant › Eng oil sys (airframe furnish) › Eng oil dist (airframe furn) › Failure
  • Aircraft › Fluids/misc hardware › Fluids › Oil › Fluid level

Flight instructor

  • Certificate: airline transport pilot, flight instructor
  • Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane
  • Flight time: 8,374 hours in all; 26 in this make and model; 17 in the last 90 days; 12 in the last 30 days; 7,235 as pilot in command; 1,961 on instruments
  • Last flight review: August 4, 2010
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: rear
  • Injury: no injuries

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; instructor: airplane single-engine
  • Flight time: 650 hours in all; 2 in this make and model; 14 in the last 90 days; 1 in the last 30 days; 610 as pilot in command; 100 on instruments
  • Medical certificate: None
  • Seat: frt

The aircraft

  • Airframe total time: 2,287 hours
  • Last inspection: annual inspection, November 10, 2010; 2 hours since
  • Maximum gross weight: 1,650 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Lycoming IO-320 SERIES (piston); 0 hours total
  • Operator: Alliance International Aviation

The flight

  • Departed from: CNO Chino CA at 5:00 pm
  • Destination: CNO Chino CA
  • Flight plan: none
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 61°F (16°C), dew point 27°F (-3°C)
  • Altimeter: 30.09 inHg
  • Observation at 5:56 pm from AJO, 3 miles away

Injuries

FatalSeriousMinorNone
Flight crew11

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.