ASN Wikibase Occurrence # 139331
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Date: | Saturday 8 October 2011 |
Time: | 13:00 |
Type: | Piper PA-28-235 Cherokee Pathfinder |
Owner/operator: | Private |
Registration: | N9444W |
MSN: | 28-11163 |
Year of manufacture: | 1969 |
Total airframe hrs: | 4964 hours |
Engine model: | Lycoming IO-540-B405 |
Fatalities: | Fatalities: 0 / Occupants: 4 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Weltzien Skypark Airport - K15G, OH -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | Parkersburg, WV (PKB) |
Destination airport: | Wadsworth, OH (15G) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The pilot reported that, prior to the flight, he noted no anomalies with the airplane or its braking system. After touchdown, the pilot applied the brakes to slow the airplane to exit the runway, but the airplane did not slow down. The airplane then departed the runway surface and the right wing contacted the visual approach slope indicator system. The airplane came to rest upright adjacent to the runway. A postaccident examination of the airplane revealed that the left brake caliper was leaking hydraulic fluid; no fluid was found in the brake system’s reservoir. Hydraulic fluid was then added to the reservoir, and a leak was noticed at the brake caliper without any brake pressure being applied to the system. The brake caliper and brake plates were removed and the brake plates were found to be worn beyond service limits, which resulted in an overextension of the brake piston and failure of the piston seal. The failure of the piston seal resulted in the loss of hydraulic fluid.
Probable Cause: The failure of the brake system during the landing roll, which was caused by a loss of hydraulic fluid as a result of a leak in the piston seal due to brake plates worn beyond their service limits.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CEN12LA023 |
Status: | Investigation completed |
Duration: | 3 months |
Download report: | Final report |
|
Sources:
NTSB
FAA register:
http://www.ntsb.gov/aviationquery/brief.aspx?ev_id=20111017X00543&key=1 http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=9444W&x=0&y=0 http://www.airnav.com/airport/KPKB Location
Revision history:
Date/time | Contributor | Updates |
20-Oct-2011 08:33 |
Geno |
Added |
10-Dec-2011 07:31 |
Alpine Flight |
Updated [Time, Aircraft type, Location, Departure airport, Destination airport, Narrative] |
21-Dec-2016 19:26 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
27-Nov-2017 17:22 |
ASN Update Bot |
Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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