On February 28, 1998, a Mooney M20J (registration N1173N) was involved in an aviation accident near Avoca, PA. Investigators recorded the probable cause as: The impact with a bird (goose) which caused an uncommanded descent, but no injuries to the occupants or damage requiring major repair. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.
A pilot experienced a sudden jolt and descent while on final approach at night due to a bird strike. The aircraft landed safely after the pilot regained control.
What happened
The flight was underway under night visual meteorological conditions when the pilot was receiving radar vectors for an instrument landing system (ILS) approach. During this phase of the operation, the pilot reported feeling a sudden jolt followed by an unexpected descent of the airplane. The pilot immediately took control and maneuvered the aircraft directly to the airport. Upon arrival, the airplane landed without any further difficulty or complications.
The investigation
Following the flight, a post-flight examination was conducted on the aircraft. This inspection revealed that a goose had become imbedded in the vertical stabilizer of the airplane. No other mechanical issues were noted during this specific examination.
Probable cause
The impact with a bird (goose) which caused an uncommanded descent, but no injuries to the occupants or damage requiring major repair.