- Date
- January 9, 2003, 17:15 local (Jan 10, 2003, 00:15 UTC)
- Place
- Parker, AZ
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N498SDDavis YAK-3 UR-2000
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 28, 2004
- Report
- Approved by Office Director
- Parties
- Federal Aviation Administration Scottsdale FSDO
- FAA report
- 20030109000239A
- Case key
- 56310
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
failure of the propeller shaft extension mechanism resulting in a loss of power, and the pilot's failure to attain the proper touchdown point.
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 airplane collided with terrain during an off airport forced landing after the failure of the propeller pitch change control during initial climb after an aborted landing. The propeller blades remained in the high-pitch, low-rpm setting, and did not provide sufficient power to sustain flight. The pilot landed the airplane about 1.5 miles from the airport in open desert terrain. The pilot felt that the propeller shaft extension mechanism failed prior to his landing approach at the airport, resulting in a loss of propeller control.
Factual narrative
On January 9, 2003, about 1715 mountain standard time, a Davis Yak-3 UR-2000, N498SD, collided with terrain during an off airport forced landing at Parker, Arizona. The pilot/owner was operating the airplane under the provisions of 14 CFR Part 91. The private pilot, the sole occupant, sustained serious injuries; the airplane sustained substantial damage. The personal cross-country flight departed Chino, California, at 1600, en route to Parker. Visual meteorological conditions prevailed, and no flight plan had been filed.
A witness stated that the airplane attempted to land, but appeared to land long. The airplane was near the end of the runway before the pilot aborted the landing. The witness said that the engine did not sound like it was running smoothly. The airframe sustained substantial damage during a collision with terrain about 1.5 miles from the airport.
According to the pilot, after landing long on runway 19, he attempted a go-around. The propeller blades remained in the high-pitch, low-rpm setting, and the engine did not develop sufficient power to sustain flight. He felt that the propeller shaft extension mechanism failed prior to his landing approach, resulting in the loss of propeller control. He felt that this loss of control resulted in the longer than normal landing, and the failure of the engine to deliver sufficient power to maintain flight during the aborted landing.
The Airport/Facility Directory, Southwest U. S., indicated that runway 19 was 4,780 feet long and 75 feet wide. The runway surface was asphalt, and the field elevation was 452 feet.
Aircraft
- Registration
- N498SD
- Reported as
- Davis YAK-3 UR-2000
- Category
- Airplane
- Serial number
- 123012
- Engine
- Pratt & Whitney R2000-7M2, 1,450 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Samuel C. Davis
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · November 2, 2002 · 3 hours before
- Departed
- CNO · Chino, CA
- Destination
- P20 · Parker, AZ
- Airport
- KP20 · Avi Suquilla, runway 19, 4,800 × 75 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
- 58
- Injuries
- Serious
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Last flight review
- May 11, 2002
- Seat
- Front
- Flight hours
- 560 total · 54 in this make and model · 480 as pilot in command · 5 in the last 90 days · 1 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 160° at 5 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 64 °F, dew point 54 °F
- Altimeter
- 30.03 inHg
- Observed at
- EED, 41 nm away
Docket · 2
The files NTSB released with the investigation on November 5, 2004, on NTSB’s docket system: statements, records, photos and specialists’ reports. 455 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.