- Date
- May 30, 1994, 20:21 local (May 31, 1994, 03:21 UTC)
- Place
- Chino, CA
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N4810TPiper PA-34-200
- Weather
- Visual (VMC) · Night/dark
- Status
- Completed · report December 7, 1994
- Report
- Approved by Office Director
- FAA report
- 19940530013119A
- Case key
- 28752
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The right engine's failure for undetermined reasons to respond to throttle command during a go-around attempt, and both pilot's failure to maintain directional control of the aircraft. Inadequate supervision of the flight by the CFI is also considered a cause.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The flight instructor reported that his student was performing a practice single-engine ILS approach to runway 26 with the right engine set at zero thrust. The aircraft was high and had drifted over the right edge of the runway when the instructor commanded the student to go-around. According to the instructor, the student brought up both throttles; however, the right engine failed to respond. The aircraft yawed and rolled to the right, the right wing tip struck the ground, and the aircraft cartwheeled to a stop. The right engine was removed from the aircraft and examined by a FAA certified airframe and power plant mechanic. No discrepancies were noted during the examination.
Factual narrative
On May 30, 1994, at 2021 Pacific daylight time, a Piper PA34-200, N4810T, collided with the ground following a loss of control during a simulated single-engine approach and go-around at the Chino, California, airport. The aircraft was operated by Air Desert Pacific Corporation of La Verne, California, and was engaged in a local area instructional flight. Visual meteorological conditions prevailed at the time and no flight plan was filed for the operation. The aircraft incurred substantial damage. The certificated commercial pilot/flight instructor and the pilot under training for a multiengine class rating were not injured. The flight originated at the La Verne, California, airport on the day of the accident at 1830 as a local area instructional flight.
In a telephone interview, the flight instructor reported that his student was performing a practice single-engine ILS approach to runway 26 with the right engine set at zero thrust. The aircraft was high and had drifted over the right edge of the runway when the instructor commanded the student to go-around. According to the instructor, the student brought up both throttles; however, the right engine failed to respond. The aircraft yawed and rolled to the right, the right wing tip struck the ground, and the aircraft cartwheeled to a stop.
The right engine was removed from the aircraft and examined by a Federal Aviation Administration (FAA) certified airframe and power plant mechanic. The report of the examination is attached to this report. No discrepancies were noted during the examination.
Aircraft
- Registration
- N4810T
- Reported as
- Piper PA-34-200
- Category
- Airplane
- Serial number
- 34-7250151
- Airframe hours
- 5,810
- Engine
- Lycoming IO-360-C1E6, 200 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- Air Desert Pacific Corp.
- Registered owner
- Air Desert Pacific Corp.
- Airworthiness certificate
- Special, Restricted (Special); Standard, Normal
- Last inspection
- Annual · May 10, 1994
- Departed
- POC · La Verne, CA
- Destination
- CNO
- Flight plan
- VFR/IFR
- Airport
- CNO · Chino, runway 26, 4,856 × 150 ft, asphalt
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 24
- Certificates
- Flight instructor, Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--w/ waivers/lim
- Seat
- Right
- Flight hours
- 1,200 total · 100 in this make and model · 1,000 as pilot in command · 60 in the last 90 days · 45 in the last 30 days · 4 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Night/dark
- Wind
- 240° at 13 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 10,000 ft broken
- Altimeter
- 29.00 inHg
- Observed at
- CNO
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.