- Date
- May 21, 1966
- Place
- Lonetree, WY · LONETREE, WY
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N9754CHiller UH-12E
- Status
- Completed · report October 18, 1966
- Report
- Brief approved by the director
- Case key
- 172411
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 2-0329 66/5/21 LONETREE WYO HILLER UH-12E CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 51, 3520 TIME - 1730 N9754C PX- 0 0 0 AERIAL APPLICATION TOTAL HOURS, 368 IN TYPE, DAMAGE-SUBSTANTIAL OT- 0 0 0 NOT INSTRUMENT RATED. TYPE OF ACCIDENT PHASE OF OPERATION COLLISION WITH GROUND/WATER: CONTROLLED IN FLIGHT: PROCEDURE TURNAROUND PROBABLE CAUSE(S) PILOT IN COMMAND - MISJUDGED ALTITUDE FACTOR(S) WEATHER - HIGH DENSITY ALTITUDE MISCELLANEOUS ACTS,CONDITIONS - JETTISONED LOAD SKY CONDITION CEILING AT ACCIDENT SITE OVERCAST 10000 VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE 5 OR OVER(UNLIMITED) NONE OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F NONE 68 WIND DIRECTION-DEGREES WIND VELOCITY-KNOTS 225 8 TYPE OF WEATHER CONDITIONS TYPE OF FLIGHT PLAN VFR NONE SPECIAL DATA TOTAL HOURS IN CROP CONTROL - UNKNOWN/NOT REPORTED KIND OF OPERATION - DEFOLIATION (LIQUID) KIND OF CROP - MESQUITE TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC PILOT' S SEAT BELT -FASTENED-PROPERLY GLOVES - NOT USED GOGGLES - NOT USED CRASH HELMET - AVAILABLE-NOT USED COCKPIT CRASHPAD - NOT INSTALLED CRASH BAR - NOT INSTALLED TANK/HOPPER-LOCATION - SIDES TERRAIN-TYPE -ROLLING ELEVATION-AREA BEING TREATED-FEET - 7500 HILLY SWATH RUN-HOW FLOWN - DOWNWIND PROCEDURE TURNAROUND - THIRD 1/3 TURN
Aircraft
- Registration
- N9754C
- Reported as
- Hiller UH-12E
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
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.
Other investigations on N9754C · 2
Matched to the same aircraft by N-number and date.