Sunday, September 30, 2018

Grumman G-164A Super Ag Cat, registered to and operated by Todds Aerial Spraying LLC, N8712H: Accident occurred May 07, 2017 at Madera Municipal Airport (KMAE), California

The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entity:

Federal Aviation Administration / Flight Standards District Office; Fresno, California

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Madera, CA
Accident Number: WPR17LA100
Date & Time: 05/07/2017, 1135 PDT
Registration: N8712H
Aircraft: Grumman G164
Aircraft Damage: Destroyed
Defining Event: Loss of control on ground
Injuries: 1 None
Flight Conducted Under: Part 137: Agricultural 

On May 7, 2017, about 1135 Pacific daylight time, a Grumman G164A, N8712H, was destroyed by post-impact fire at Madera Municipal Airport (MAE), Madera, California. The commercial pilot was not injured. The airplane was registered to and operated by Todds Aerial Spraying, LLC. under the provisions of Title 14 Code of Federal Regulations Part 137 as an aerial application flight. Visual meteorological conditions prevailed, and no flight plan was filed for the local flight, which was originating at the time of the accident.

The pilot reported that he had made three aerial application flights that morning without incident. During his fourth takeoff roll on runway 30, the airplane started to veer to the left. He applied full right brake and rudder control to correct the movement to the left; however, despite his control inputs, the airplane exited the left side of the runway. The pilot stated that the throttle remained at full power as he tried to liftoff from the grassy area adjacent to the runway. Subsequently, the right main landing gear separated which resulted in the propeller and right wing striking the ground. The airplane nosed over and a post-crash fire ensued. The pilot stated that, at the time of the accident, the wind was about 7-10 miles per hour (mph) from the southeast, with occasional gusts to 12-14 mph. He also reported that the airplane had about 200 gallons of chemicals and 35 gallons of fuel on board.

The airplane's original equipment manufacturer (OEM) parts design incorporated a free swivel, non-lockable tailwheel assembly. Such assembly allows directional control on the ground by applying differential braking, until adequate airspeed is attained for the rudder to become effective for directional control.

A Federal Aviation Administration Inspector examined the right brake and did not find any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation. He concluded that the normal brake effectiveness was available, and the right brake was fully applied; however, that was not adequate to overcome the left yaw.

Pilot Information

Certificate: Commercial
Age: 70, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Single
Other Aircraft Rating(s): Helicopter
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present:
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 11/29/2016
Occupational Pilot: Yes
Last Flight Review or Equivalent:
Flight Time:  (Estimated) 30000 hours (Total, all aircraft), 2000 hours (Total, this make and model), 30000 hours (Pilot In Command, all aircraft), 45 hours (Last 90 days, all aircraft), 30 hours (Last 30 days, all aircraft), 4 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: Grumman
Registration: N8712H
Model/Series: G164 A
Aircraft Category: Airplane
Year of Manufacture: 1975
Amateur Built: No
Airworthiness Certificate: Restricted
Serial Number: 1486
Landing Gear Type: Tailwheel
Date/Type of Last Inspection: 04/16/2016, Annual
Certified Max Gross Wt.:
Time Since Last Inspection:
Engines: Reciprocating
Airframe Total Time:
Engine Manufacturer: Pratt & Whitney
ELT: Not installed
Engine Model/Series: R-1340-S1H1
Registered Owner: Streeter Racing
Rated Power: 600 hp
Operator: Streeter Racing
Operating Certificate(s) Held: Agricultural Aircraft (137) 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KMAE, 253 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time: 1053 PDT
Direction from Accident Site: 37°
Lowest Cloud Condition: Few / 3100 ft agl
Visibility: 10 Miles
Lowest Ceiling:
Visibility (RVR):
Wind Speed/Gusts: 8 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 160°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.84 inches Hg
Temperature/Dew Point: 18°C / 8°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Madera, CA (MAE)
Type of Flight Plan Filed: None
Destination: Madera, CA (MAE)
Type of Clearance: None
Departure Time: 1135 PDT
Type of Airspace:

Airport Information

Runway Surface Type: Asphalt
Airport Elevation: 255 ft
Runway Surface Condition: Dry
Runway Used: 30
IFR Approach: None
Runway Length/Width: 5545 ft / 150 ft
VFR Approach/Landing: None

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Destroyed
Passenger Injuries: N/A
Aircraft Fire: On-Ground
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude:  36.986389, -120.112500 (est)

NTSB Identification: WPR17LA100

14 CFR Part 137: Agricultural
Accident occurred Sunday, May 07, 2017 in Madera, CA
Aircraft: GRUMMAN ACFT ENG COR-SCHWEIZER G 164A, registration: N8712H
Injuries: 1 Uninjured.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On May 7, 2017, about 1135 Pacific daylight time, a Grumman G164A, N8712H, was destroyed by post-impact fire at Madera Municipal Airport (MAE), Madera California. The pilot, the sole occupant, was not injured. The airplane was registered to and operated by Todds Aerial Spraying, LLC. as an aerial application flight under the provisions of 14 Code of Federal Regulations Part 137. Visual meteorological conditions prevailed, and no flight plan had been filed for the flight. 

The pilot reported that during takeoff he encountered a quartering tailwind, and the airplane started to veer to the left. The pilot applied the right brake; however, there was no response. The airplane continued to the left, veered off the runaway, collided with the terrain, and subsequently caught on fire.

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.