- Date
- August 16, 1973
- Place
- Springer, OK · SPRINGER, OK
- Injuries
- 1 fatal
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N11VHEL Tomcat MK5
- Status
- Completed · report April 9, 1974
- Report
- Brief approved by the director
- FAA report
- 19730816031029A
- Case key
- 188762
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 ---------------------------------------------------------------------------------------------------------------------------- 3-4048 73/8/16 SPRINGER,OKLA EL TOMCAT MK5 CR- 1 0 0 COMMERCIAL COMMERCIAL, FL.INSTR., TIME - 1645 N11VH PX- 0 0 0 ASSOC CROP CTL ACTIVITY AGE 28, 2790 TOTAL HOURS, DAMAGE-SUBSTANTIAL OT- 0 0 0 110 IN TYPE, INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION ARDMORE,OKLA LOCAL TYPE OF ACCIDENT PHASE OF OPERATION COLLISION WITH GROUND/WATER: CONTROLLED IN FLIGHT: RETURN TO STRIP PROBABLE CAUSE(S) MISCELLANEOUS - UNDETERMINED FACTOR(S) TERRAIN - HIGH OBSTRUCTIONS SPECIAL DATA TOTAL HOURS IN CROP CONTROL - 615 KIND OF OPERATION - SPRAYING CROPS KIND OF CROP - OTHER TYPE OF CHEMICAL USED - LIQUID CHEMICAL-NONTOXIC PILOT' S SEAT BELT -FASTENED-PROPERLY GLOVES - USED CRASH HELMET - AVAILABLE USED COCKPIT CRASHPAD - NOT INSTALLED CRASH BAR - NOT INSTALLED TANK/HOPPER-LOCATION - SIDES TERRAIN-TYPE -LEVEL,FLAT ELEVATION-AREA BEING TREATED-FEET - 824 SWATH RUN-HOW FLOWN - CROSSWIND FIRE AFTER IMPACT REMARKS- PLT CHOLINESTERASE 2.53,NORMAL IS 3.35-5.67.HIT TREE PRIOR TO GND IMPACT.16GALS FUEL LAST TKOF.
Aircraft
- Registration
- N11VH
- Reported as
- EL Tomcat MK5
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
N11VHRegistration cancelled Jul 19, 2011 · Bell 47G-2Airframe modelBell 47G-2Engine modelLycoming VO-435 series
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.
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 N11VH · 6
Matched to the same aircraft by N-number and date.
NTSB SEA99LA149Accident · 1 fatalLimited investigationFinal reportBenton City, WAA loss of power for undetermined reasons and the failure of the pilot to maintain adequate rotor RPM following the power loss. Contributing factors were the pilot's lack of certification and total experience.NTSB SEA86LA143Accident · No injuriesLimited investigationFinal reportZillah, WAEn route to the local spray area a total loss of power occurred along with a loss of oil pressure. The acft was aprx 200 ft AGL over a pear orchard. The plt was attempting to autorotate onto a nearby road but the left skid caught the roof top of a metal shed.…NTSB SEA85LA155Accident · No injuriesLimited investigationFinal reportRoosevelt, WAA total loss of power occurred while on a CFR 137 flight, due to fuel exhaustion. Although the fuel gauge showed 1/2 tank of fuel, the pilot failed to visually check the fuel prior to this flight. During autorotation onto a wheat field a hard landing occurred…NTSB SEA84LA132Accident · No injuriesLimited investigationFinal reportBuena, WAMain rotor blades contacted a wind machine during an aerial application flt. Helicopter settled into trees and rolled over. Plt said he knew the machine was there but had forgotten.NTSB SEA82DA072Accident · No injuriesFinal reportGrandview, WAWhile dispensing herbicide (systox) over an apple orchard the pilot sensed that the engine was binding followed by a power loss. The pilot elected to dump the herbicide and performed a power-off autorotation landing in a grape vineyard. Investigation revealed…NTSB SEA82DA050Accident · No injuriesFinal reportLyle, WADuring takeoff with a load of fertilizer, insufficient power was available to maintain engine and rotor RPM and sustain flight. The pilot dumped the load, but was unable to avoid ground contact. The tail rotor struck first and separated from the aircraft. The…