- Date
- November 30, 1986, 11:35 local (18:35 UTC)
- Place
- Tucson, AZ
- Injuries
- 2 minor
- Damage
- Destroyed
- Phase of flight
- Approach
- Aircraft
- N9006WRobinson R-22
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 3, 1988
- Report
- Approved by Office Director
- FAA report
- 19861130062479A
- Case key
- 25305
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
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
After 50 minutes of cruise flight, the pilot observed a decrease in oil pressure to zero and the illumination of the low oil pressure light. The pilot landed the helicopter and had an airframe and powerplant mechanic inspect the aircraft. There were no problems observed. The pilot took off and continued the instructional flight, letting his student take over the controls. After 20 minutes of normal operation and on final approach for landing at 75 ft AGL and 50 knots, the low oil pressure light illuminated. The engine stopped running. The instructor took over control of the aircraft and attempted an autorotation. The aircraft collided with the terrain at an airspeed of 35 to 40 knots. A teardown of the engine revealed that the number two connecting rod had failed.
Aircraft
- Registration
- N9006W
- Reported as
- Robinson R-22
- Category
- Helicopter
- Serial number
- 0004
- Airframe hours
- 1,559
- Engine
- Lycoming O-320-B2C, 160 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Instructional · Part 91
- Operator
- Arizona Wing & Rotor
- Registered owner
- Ronald Lee
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · November 5, 1986 · 56 hours before
- Departed
- SDL · Scottsdale, AZ
- Destination
- TUS · Tucson, AZ
- Airport
- TUS · Tucson Int'L
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
- 29
- Certificates
- Flight instructor, Commercial
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 240 total · 240 in this make and model · 173 as pilot in command · 21 in the last 90 days · 7 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Lowest ceiling
- None
- Altimeter
- 31.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.