- Date
- May 10, 1984, 11:00 local (18:00 UTC)
- Place
- Delano, CA
- Injuries
- 1 minor
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N90461Hiller UH-12E (Soloy)
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19840510017189A
- Case key
- 24263
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
The helicopter experienced an inflt failure of an eng mount, pn 63181-5, which bent the collective control rod & forced the the collective pitch into the up position. The helicopter then settled into the grapes it was spraying & made a hard landing. An investigation revealed that the gusset weld beads, just below the outer gimbal forward attach point, had failed in fatigue.
Aircraft
- Registration
- N90461
- Reported as
- Hiller UH-12E (Soloy) (UH-12E (SO)
- Category
- Helicopter
- Serial number
- 2514
- Airframe hours
- 6,373
- Engine
- Allison 250-C20B, 305 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- San Joaquin Helicopters
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · June 28, 1983 · 29 hours before
- Departed
- DLO · Delano, CA
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
- 38
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Right
- Flight hours
- 7,000 total · 623 in this make and model · 6,870 as pilot in command · 162 in the last 90 days · 5 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 20 statute miles
- Lowest ceiling
- None
- Temperature
- 73 °F, dew point -0 °F
- Altimeter
- 29.00 inHg
- Observed at
- VIS, 39 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N90461 · 1
Matched to the same aircraft by N-number and date.