Air East Crash Near Pittsburgh: Premature Descent and AOC Revocation (N125AE)

Incident Overview and Outcome Following an uneventful flight from Pittsburgh-International Airport, the crew of a twin-engine airplane began a descent earlier than planned. This action caused the aircraft to approach below the minimum published altitude. While descending in marginal weather conditions, the aircraft struck an ILS antenna and crashed a few dozen yards short of the threshold of runway 33. The impact resulted in the death of 12 occupants and serious injuries to a pilot and four passengers. The aircraft was destroyed. ## Regulatory Action Against the Operator The investigation identified numerous violations, unsafe practices, policies, and coercing tactics associated with the operator. Based on these findings, the operator, identified in the source as Air East, was determined not to possess the judgment, responsibility, or compliance disposition required of a holder of an air taxi commercial operator's certificate. Consequently, the operator's Air Operator Certificate (AOC) was revoked on March 7, 1974. ## Probable Cause Determination The official findings determined that the accident was caused by a premature descent below a safe approach slope, followed by a stall and loss of aircraft control. The specific reason for the premature descent could not be determined. However, it was probably the result of a combination of factors, including a deliberate descent below the published minimum descent altitude to establish reference with the approach lights and make the landing, a visual impairment or optical illusion created by the runway and approach lighting systems, and downdrafts near the approach end of the runway.