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WPR15LA183

2015-06-11 · Tucson, Arizona, United States · None · 1 aircraft · Status: Completed

Airport 57AZ

Current FAA registration · N8401N

Make / Model
BEECH E33A
Year of manufacture
1968 · 47 years old at event
Engine
CONT MOTOR IO 520 SERIES (285 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19770504
ADS-B equipped
Yes — Mode-S AB8261

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

A loss of left braking action for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical failures or malfunctions that would have precluded normal operation, which resulted in a loss of directional control.

Factual narrative

On June 11, 2015, about 0840 mountain standard time, a Beech E33A, N8401N, exited the runway landing surface during the landing rollout at La Cholla Airpark, Tucson, Arizona, and collided with a drainage ditch. The owner/pilot was operating the airplane under the provisions of 14 Code of Federal Regulations Part 91. The commercial pilot was not injured; the airplane sustained substantial damage. The local personal flight departed Tucson, about 0800. Visual meteorological conditions prevailed, and no flight plan had been filed. In a written statement, the pilot reported that the landing touchdown was smooth, with power nearly off. During the landing roll, he applied gentle pressure to the brakes to slow down, however the left side braking action was non-existent, while the right side brake held. The pilot was unable to maintain directional control as the airplane departed the narrow runway and subsequently collided with a drainage ditch and low cement wall. The wreckage was recovered to a secured facility where a Federal Aviation Administration Inspector from the Scottsdale, Arizona, Flight Standards District Office examined the brake system. The inspector reported no evidence of a mechanical malfunction or failure. The hydraulic system was almost empty due to the bleeder valve on the brake caliper was sheared off. The airplane touched down smoothly with the power nearly off. During the landing roll, the commercial pilot applied gentle pressure to the brakes to slow down; however, there was no left braking action, but there was right braking action. The pilot was unable to maintain directional control of the airplane, and it departed the narrow runway and subsequently collided with a drainage ditch and cement wall. During postaccident examination of the brake system, the hydraulic system was found almost empty because the bleeder valve on the brake caliper had sheared off due to impact damage. The examination revealed no evidence of any preimpact mechanical failures or malfunctions that would have precluded normal operation. The reason for the lack of left braking action could not be determined. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12

NTSB Findings

FAA avdata. C = Cause, F = Factor.

  • C Not determined-Not determined-(general)-(general)-Unknown/Not determined - C
  • — Environmental issues-Physical environment-Object/animal/substance-(general)-Contributed to outcome

Verbatim from NTSB's published report. Source file NTSB_2015_WPR15LA183.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.