# Accident 19740718021559A: Bell 47J2A, Detroit, MI, July 18, 1974

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 18, 1974
- Place: Detroit, MI
- Airport: Detroit City
- Damage: Destroyed
- Phase of flight: Fcd/Prec Ldg From Cruise
- Location: 42.3314° N, 83.0458° W: Placed by OpenAirDocs: center of Detroit, MI, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.3314&lon=-83.0458&mi=10
- Aircraft: N8525F, a cancelled registration (https://openairdocs.org/deregistered/N8525F-1989-03-14) (OpenAirDocs)
- Registry model: Bell 47J-2A (registry code 1181106, https://openairdocs.org/model/bell-47j-2a) (OpenAirDocs)
- Reported make and model: BELL 47J2A
- Fatal injuries: 0
- Pilot flight hours: 8,305 total, 50 in this make and model, 79 in the last 90 days
- NTSB investigation: [NTSB CHI75AC009](https://openairdocs.org/ntsb/CHI75AC009) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19740718021559A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

TAIL ROTOR DRIVE SHORT SHAFT FAILED DUE TO SLIP JOINT COUPLING RUNNING DRY OF GREASE.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI75AC009](https://openairdocs.org/ntsb/CHI75AC009), Jul 18, 1974: Bell 47J-2A (N8525F), Detroit, MI, destroyed

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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