Thursday, December 21, 2017

Piper PA-12 Super Cruiser, N47FP: Accident occurred December 20, 2017 at Texas Gulf Coast Regional Airport (KLBX), Angleton, Brazoria County, Texas

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

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Houston, Texas

Aviation Accident Preliminary Report - National Transportation Safety Board: 

Judith C Linn dba ProAir:

Location: Angleton, TX
Accident Number: CEN18LA071
Date & Time: 12/20/2017, 1515 CDT
Registration: N47FP
Aircraft: PIPER PA 12
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Personal 

On December 20, 2017, about 1530 central standard time, a piper PA12 airplane, N47FP, registered to a private individual, sustained substantial damage following a loss of control and runway departure upon landing at the Texas Gulf Coast Regional Airport (LBX), Angleton, Texas. The pilot and one passenger were not injured. Visual meteorological conditions prevailed throughout the area and flight plan was not filed. The personal flight was being conducted under the provisions of Federal Code of Regulations Part 91. The flight originated from the Flyin Tiger Airport (81D), Angleton, Texas, about 1515.

According to the pilot, after an uneventful flight from 81D, the pilot checked the weather for landing at LBX and conducted a visual pattern and approach to runway 17. The winds were 220 degrees at 6 knots which would yield about a 5 knot right-to=left crosswind component. The landing was on airspeed and on centerline and in the touchdown zone. After lowering the left wheel to the ground, the aircraft immediately and uncontrollably veered sharply to the left. The pilot applied full right rudder and immediately held the stick full right and aft to keep the aircraft from ground looping or cartwheeling. The pilot was able to regain directional control of the aircraft and departed the runway to the left and proceeded to impact two of the four Precision Approach Path Indicator (PAPI) lights for runway 17. The propeller hit a PAPI light and the aircraft continued and came to a stop in the grass about 50-100 feet off the runway. There were no injuries and the pilot and passenger exited the aircraft. The pilot immediately suspected that a brake had somehow locked on the left main wheel. Braking marks on the runway and grass correlated to the left main landing gear tire as it passed from the runway surface onto the grass. The airplane was towed to a hangar for examination.

After an initial investigation by an on-scene FAA inspector and an A&P/IA, no anomalies were discovered with the left brake assembly. The experienced, 6000-hour ATP pilot reported on NTSB Form 6120, that he thought that the left brake was somehow activated upon landing, and knew that his feet were nowhere near the brakes, as he was planning a touch and go. After inspection of the brakes, the pilot stated that he believed that the passenger could have inadvertently had his foot on the brake pedal during the landing rollout.

The pilot also stated that he had thoroughly briefed his passenger prior to the flight regarding the basic use of flight controls, emergency procedures, and flight plan. 

Aircraft and Owner/Operator Information

Aircraft Manufacturer: PIPER
Registration: N47FP
Model/Series: PA 12 NO SERIES
Aircraft Category: Airplane
Amateur Built: No
Operator: On file
Operating Certificate(s) Held: None 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: LBX, 25 ft msl
Observation Time: 1453 CDT
Distance from Accident Site: 0 Nautical Miles
Temperature/Dew Point: 27°C / 9°C
Lowest Cloud Condition: Clear
Wind Speed/Gusts, Direction: 9 knots, 220°
Lowest Ceiling: None
Visibility:  3 Miles
Altimeter Setting: 29.96 inches Hg
Type of Flight Plan Filed: None
Departure Point: Angleton, TX (LBX)
Destination: Angleton, TX (LBX) 

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 1 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 29.108611, 95.461944 (est) 

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