20161005017789A

Accident · Substantial damage

FAA accident report · Bell UH-1H · Gila Bend, AZ · October 5, 2016

Date
October 5, 2016 · 09:15 local
Place
Gila Bend, AZ
Phase of flight
Other, Specify
Operating rules
Agricultural (Part 137)
Operator
7FAG
Damage
Substantial damage
Aircraft
N175SF
NTSB investigation
NTSBWPR17LA002
Reported as
Bell UH-1H
Reported engine
Honeywell T5313B
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificates
Commercial pilot, flight instructor
Pilot’s flight hours
3,778 total118 in this make and model49 in the last 90 days

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

On the morning of 5 October 2016, the pilot performed a preflight inspection in accordance to with the manual on rotorcraft N175SF. The pilot found no anomalies on the preflight and departed the private strip of farm ag enterprise at 0700MST with 1000LBS of fuel and no load. N175SF flew to the job site which was located at 32.9777 -112.7818. At approximately 0900MST N175SF was just finishing up with a load and was pulling up out of the field and turning left to return to the truck. N175SF was approximately 80-100FT AGL and 20 knots when there was a loud bang followed by loss of tail rotor control and a flat spin to the right. The pilot lowered the collective and entered an autorotation. The pilot made a right hand spiral turn downward for the ground trying to get the tail to straighten out. The pilot was unable to completely stop the spin before getting to the ground. The pilot performed a flare to stop the decent and landed the rotorcraft in the cotton field. When N175SF it the ground the skids stuck into the cotton plants and the momentum caused a dynamic roll over to the left. The rotorcraft laid over on it?s left side and the blades hit the ground. The pilot shut off the fuel valve, circuit breakers, and master switch; then exited the rotorcraft out the right door.

There was a witness standing by who was a farmer in a near by field confirming the loud bang and observing the spin action of the rotorcraft as N175SF hit the ground.

As the FAA filed it

ON THE MORNING OF 5 OCTOBER 2016, THE PILOT PERFORMED A PREFLIGHT INSPECTION IN ACCORDANCE TO WITH THE MANUAL ON ROTORCRAFT N175SF. THE PILOT FOUND NO ANOMALIES ON THE PREFLIGHT AND DEPARTED THE PRIVATE STRIP OF FARM AG ENTERPRISE AT 0700MST WITH 1000LBS OF FUEL AND NO LOAD. N175SF FLEW TO THE JOB SITE WHICH WAS LOCATED AT 32.9777 -112.7818. AT APPROXIMATELY 0900MST N175SF WAS JUST FINISHING UP WITH A LOAD AND WAS PULLING UP OUT OF THE FIELD AND TURNING LEFT TO RETURN TO THE TRUCK. N175SF WAS APPROXIMATELY 80-100FT AGL AND 20 KNOTS WHEN THERE WAS A LOUD BANG FOLLOWED BY LOSS OF TAIL ROTOR CONTROL AND A FLAT SPIN TO THE RIGHT. THE PILOT LOWERED THE COLLECTIVE AND ENTERED AN AUTOROTATION. THE PILOT MADE A RIGHT HAND SPIRAL TURN DOWNWARD FOR THE GROUND TRYING TO GET THE TAIL TO STRAIGHTEN OUT. THE PILOT WAS UNABLE TO COMPLETELY STOP THE SPIN BEFORE GETTING TO THE GROUND. THE PILOT PERFORMED A FLARE TO STOP THE DECENT AND LANDED THE ROTORCRAFT IN THE COTTON FIELD. WHEN N175SF IT THE GROUND THE SKIDS STUCK INTO THE COTTON PLANTS AND THE MOMENTUM CAUSED A DYNAMIC ROLL OVER TO THE LEFT. THE ROTORCRAFT LAID OVER ON IT?S LEFT SIDE AND THE BLADES HIT THE GROUND. THE PILOT SHUT OFF THE FUEL VALVE, CIRCUIT BREAKERS, AND MASTER SWITCH; THEN EXITED THE ROTORCRAFT OUT THE RIGHT DOOR.

THERE WAS A WITNESS STANDING BY WHO WAS A FARMER IN A NEAR BY FIELD CONFIRMING THE LOUD BANG AND OBSERVING THE SPIN ACTION OF THE ROTORCRAFT AS N175SF HIT THE GROUND.

NTSB investigation

The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.