Probable cause
The malfunction of the braking system fluid line, which resulted in an overrun of the runway.
NTSB analysis
According to the pilot, during the landing roll as he applied the brakes, he observed they felt “very soft.” As he continued to apply full pressure, he experienced a very low deceleration rate. He continued to pump the brakes with minimum results and executed turns to attempt to slow the airplane down. The airplane continued to roll and exited the runway before colliding with an embankment. A postaccident examination of the airplane revealed the left wing and fuselage were substantially damaged. An examination of the braking system revealed that a brake line under the floorboard was leaking hydraulic fluid. Given this information, it is likely that the degraded braking action the pilot reported during the landing was the result of the leaking brake line.
Text from the NTSB. Open the NTSB docket for ERA22LA316 for the full record.
Event
- Date
- Jul 14, 2022
- Type
- Accident
- Place
- Monongahela, Pennsylvania
- Nearest airport
- Rostraver (FWQ)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Cessna P337H
- N-number
- N5GY
- Category
- Airplane
- Year built
- 1978
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Positioning
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.