- Date
- April 3, 1987, 15:40 local (21:40 UTC)
- Place
- Big Lake, MN
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N135HAHiller UH-12ET
- Weather
- Visual (VMC) · Day
- Status
- Completed · report October 7, 1988
- Report
- Approved by Office Director
- FAA report
- 19870403008309A
- Case key
- 13584
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
Aircraft was being maneuvered for landing on a ground support trailer when it experienced a power failure. Due to high trees autorotation was made to adjacent field. Aircraft landed on rough/uneven terrain and rolled over. Investigation revealed contaminated fuel system. Approximately one gallon of a white milky substance was drained from the sump and all major components of the fuel system were contaminated. The origin of the contamination could not be determined.
Aircraft
- Registration
- N135HA
- Reported as
- Hiller UH-12ET
- Category
- Helicopter
- Serial number
- HA3035
- Engine
- Allison 250-C20B, 400 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Hookspray Service Inc.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · November 4, 1986
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
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 2,400 total · 530 in this make and model · 2,350 as pilot in command · 3 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 20 statute miles
- Lowest ceiling
- None
- Temperature
- 50 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.