20110205002429A

Accident · Substantial damage

FAA accident report · Grumman ACF G-164B · Buttonwillow, CA · February 5, 2011

Date
February 5, 2011 · 09:30 local
Place
Buttonwillow, CA
Phase of flight
Other, Specify
Operating rules
Agricultural (Part 137)
Damage
Substantial damage
Aircraft
N6725K
NTSB investigation
NTSBWPR11CA128
Reported as
Grumman ACF G-164B
Reported engine
Pratt & Whitney R1340 series
People aboard
1
Fatal injuries
0
Other injuries
0
Pilot’s certificate
Commercial pilot
Pilot’s flight hours
17,000 total450 in this make and model30 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 02-05-2011, 9.30AM (local) an aerial applicator , while conducting an aerial application operation, hit a standpipe (irrigation pipe) with its propeller. The aircraft at the time of the accident was laying down smoke to identify the wind direction for drift determining purpose. The aircraft made a low pass over the field, the pilot observed several standpipes in the field. Once he completed the low pass he immediately started to lay smoke at an altitude of approximately 20 ft AGL when he hit a standpipe with its propeller. The pilot maintained control over the aircraft and tried to perform an emergency landing on the ajar dirt road. Once the aircraft made contact with the dirt road the aircraft's right main gear went of the side of the dirt road hitting soft dirt and the aircraft overturned sliding to a stop inverted. The pilot was not injured during the accident during the investigation it was brought to our attention that the pilot did not perform a high or proper low recon of the field causing the pilot to not have observed all hazards in the field. The operator informed us that during normal operations a ground spotter would help with the identifying potential hazards on the field to be sprayed. At the time of the accident the aircraft ground spotter had not arrived yet, and the pilot elected to continued with the operation.

As the FAA filed it

ON 02-05-2011, 9.30AM (LOCAL) AN AERIAL APPLICATOR , WHILE CONDUCTING AN AERIAL APPLICATION OPERATION, HIT A STANDPIPE (IRRIGATION PIPE) WITH ITS PROPELLER. THE AIRCRAFT AT THE TIME OF THE ACCIDENT WAS LAYING DOWN SMOKE TO IDENTIFY THE WIND DIRECTION FOR DRIFT DETERMINING PURPOSE.THE AIRCRAFT MADE A LOW PASS OVER THE FIELD, THE PILOT OBSERVED SEVERAL STANDPIPES IN THE FIELD. ONCE HE COMPLETED THE LOW PASS HE IMMEDIATELY STARTED TO LAY SMOKE AT AN ALTITUDE OF APPROXIMATELY 20 FT AGL WHEN HE HIT A STANDPIPE WITH ITS PROPELLER. THE PILOT MAINTAINED CONTROL OVER THE AIRCRAFT AND TRIED TO PERFORM AN EMERGENCY LANDING ON THE AJAR DIRT ROAD. ONCE THE AIRCRAFT MADE CONTACT WITH THE DIRT ROAD THE AIRCRAFT'S RIGHT MAIN GEAR WENT OF THE SIDE OF THE DIRT ROAD HITTING SOFT DIRT AND THE AIRCRAFT OVERTURNED SLIDING TO A STOP INVERTED. THE PILOT WAS NOT INJURED DURING THE ACCIDENT DURING THE INVESTIGATION IT WAS BROUGHT TO OUR ATTENTION THAT THE PILOT DID NOT PERFORM A HIGH OR PROPER LOW RECON OF THE FIELD CAUSING THE PILOT TO NOT HAVE OBSERVED ALL HAZARDS IN THE FIELD. THE OPERATOR INFORMED US THAT DURING NORMAL OPERATIONS A GROUND SPOTTER WOULD HELP WITH THE IDENTIFYING POTENTIAL HAZARDS ON THE FIELD TO BE SPRAYED. AT THE TIME OF THE ACCIDENT THE AIRCRAFT GROUND SPOTTER HAD NOT ARRIVED YET, AND THE PILOT ELECTED TO CONTINUED WITH THE OPERATION.

NTSB investigation

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

Other reports on N6725K · 3

Matched to the same aircraft by N-number and date.