- Date
- July 15, 1984, 15:30 local (22:30 UTC)
- Place
- Orcutt, CA
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N4030AHiller UH-12E
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19840715032439A
- Case key
- 23977
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
Maintenance had just been performed & the crew were beginning a test flt to check the tracking of the main rotor blades. While the plt was hover taxiing, he lost collective control & rotor RPM decreased. However, he was able to make a roll-on landing, but the helicopter rolled over & was damaged. An exam of the lower collective center control housing disclosed that the terminal pin was placed thru the outer housing, but was installed beneath the terminal tee rather than thru the tee. The manual emphasizes that the pin must pass thru the terminal tee. The manual had no provisions to ascertain that the pin had been installed thru the terminal tee.
Aircraft
- Registration
- N4030A
- Reported as
- Hiller UH-12E
- Category
- Helicopter
- Serial number
- 5147
- Airframe hours
- 1,602
- Engine
- Lycoming VO-540-02, 305 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Part 91
- Operator
- San Francisco & Fesno Land Co
- Registered owner
- O'Rielly'S Econo Leasing, Inc.
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- 100 hour · June 21, 1984 · 23 hours before
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 44
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land, Single-engine sea
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Right
- Flight hours
- 9,000 total · 2,000 in this make and model · 7,900 as pilot in command · 100 in the last 90 days · 50 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 335° at 5 knots
- Visibility
- 25 statute miles
- Lowest ceiling
- None
- Temperature
- 75 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.