Casualties unknown

1986-05-27: Piper PA 28-236 (N43504) — California Aviation — Chino, CA

Chino, CA, US

On May 27, 1986, a Piper PA 28-236 (registration N43504) operated by California Aviation was involved in an aviation accident near Chino, CA. Investigators recorded the probable cause as: The pilot's failure to remain clear of terrain while operating in instrument meteorological conditions, which may have been exacerbated by fatigue from excessive flight time in a short period. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 5 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 1781061362Data APIEditorial standards

A private pilot returning from a night cross-country flight flew over his home airport by 23 nautical miles and descended into terrain due to instrument meteorological conditions.

What happened

The aircraft was involved in a nighttime accident while operating under visual flight rules. The pilot had completed a cross-country flight and was returning to his home base. Upon arrival in the vicinity of the airport, the pilot failed to locate the runway environment and overflew the field by approximately 23 nautical miles. Rather than executing a missed approach or holding pattern, the pilot continued the descent into terrain. The area was experiencing instrument meteorological conditions characterized by reduced visibility, which likely contributed to the loss of situational awareness.

The investigation

Review of the flight data and witness statements indicated that the pilot had accumulated 10 hours of flight time within the preceding 24-hour period. This high workload and potential fatigue may have impaired decision-making capabilities during the critical phase of the approach. No mechanical failures were reported prior to the impact.

Findings

The primary factors leading to the accident included the pilot's failure to maintain terrain clearance while operating in instrument meteorological conditions. The decision to continue descent without positive visual reference to the airport was a significant error. Additionally, the pilot's recent flight activity suggested possible fatigue as a contributing factor.

Safety message

Pilots must adhere to strict weather minimums and avoid flying into known IMC without proper instrumentation and training. Fatigue management is critical; pilots should assess their physical condition before attempting complex approaches at night.

Probable cause

The pilot's failure to remain clear of terrain while operating in instrument meteorological conditions, which may have been exacerbated by fatigue from excessive flight time in a short period.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X33584. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.