NTSB CAROL · Event
Event WPR11CA165
Aircraft involved
Probable cause & findings
The malfunction of the brake system which led to the pilot's failure to maintain directional control during the landing roll.
Factual narrative
The pilot reported that the airplane had not been flown in several months, and during the preflight inspection, he found that the brake fluid reservoir was empty. The pilot filled the reservoir and reported good braking during taxi for takeoff. At the destination airport, the pilot chose to perform a practice short field landing. The pilot stated that he immediately applied the brakes after touchdown but there was no braking action. He then vigorously pumped the brakes in an attempt to still make a short field landing. The pilot reported that the right brake suddenly functioned, but the left one did not. The airplane subsequently veered off the runway to the right as there was insufficient rudder effectiveness to straighten the airplane's tracking. The left wing impacted an airport perimeter fence damaging the wing and the lift strut. Additionally, the left main landing gear collapsed under the fuselage, and the right main landing gear splayed outward. The pilot stated that he could have easily made the midfield turnoff with no brakes. The pilot reported that the airplane had not been flown in several months, and during the preflight inspection, he found that the brake fluid reservoir was empty. He filled the reservoir and noted that the braking performance was good during taxi for takeoff. At the destination airport, the pilot chose to perform a practice short field landing. He immediately applied the brakes after touchdown but there was no braking action. He then vigorously pumped the brakes in an attempt to still make a short field landing. The right brake suddenly functioned, but the left brake remained inoperative. The airplane subsequently veered off the runway to the right as there was insufficient rudder effectiveness to straighten the airplane's tracking. The left wing impacted an airport perimeter fence damaging the wing and the lift strut. Additionally, the left main landing gear collapsed under the fuselage, and the right main landing gear splayed outward. The pilot stated that he could have easily made the midfield turnoff with no brakes. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- — Personnel issues-Task performance-Maintenance-Scheduled/routine maintenance-Pilot
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- F Aircraft-Aircraft systems-Landing gear system-Brake-Malfunction - F
Verbatim from NTSB's published report. Source file
NTSB_2011_WPR11CA165.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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