# Incident 19901204060289I: Bell 47G3B1, San Juan, Puerto Rico, December 4, 1990

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 4, 1990, 14:30 local time
- Place: San Juan, Puerto Rico
- Damage: Minor damage
- Phase of flight: Pwr On Vertical Ldng/Rtrcrft
- Operating rules: General operating rules (Part 91)
- Location: 18.4663° N, 66.1057° W: Placed by OpenAirDocs: center of San Juan, PR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=18.4663&lon=-66.1057&mi=10
- Aircraft: N1397X, registered now (https://openairdocs.org/aircraft/N1397X) (OpenAirDocs)
- Registry model: Bell 47G-3B-1 (registry code 1181028, https://openairdocs.org/model/bell-47g-3b-1) (OpenAirDocs)
- Registry engine: Lycoming TVO-435-GIA (registry code 41526, https://openairdocs.org/engine/lycoming-tvo-435-gia) (OpenAirDocs)
- Reported make and model: BELL 47G3B1
- Reported engine: LYC VO435A1F
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 3,085 total, 300 in this make and model, 195 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19901204060289I

## Narrative

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

HEAVY VIBRATION AND DROP IN ROTOR RPM ON PRECAUTIONARY LANDING ROTOR BLADES HIT A LIGHT POLE.

## Other reports on N1397X (5)

Matched to the same aircraft by N-number and date.

- [Accident 19960929045529A](https://openairdocs.org/incident/19960929045529A), Sep 29, 1996: Bell 47G3B1 (N1397X), San Juan, Puerto Rico, Substantial damage. (.4) On September 29, 1996, about 1245 eastern daylight time, a Bell 47G-3B-1 helicopter, N1397X, registered to a private owner, operating as a title 14 CFR…
- [Accident 19960926045559A](https://openairdocs.org/incident/19960926045559A), Sep 26, 1996: Bell 47G3B1 (N1397X), Aguadilla, Puerto Rico, Substantial damage. Landed in grass near runway. Began hover downwind. Left skid hit ground then rotors. First solo. Wind gust problem.
- [Accident 19910915040009A](https://openairdocs.org/incident/19910915040009A), Sep 15, 1991: Bell 47G3B1 (N1397X), Peneulas, Puerto Rico, Substantial damage. Passenger moved copilot cyclic forward by his knee during hover after liftoff. Unable to correct, impacted. Rolled.
- [Incident 19900630041939I](https://openairdocs.org/incident/19900630041939I), Jun 30, 1990: Bell 47G3B1 (N1397X), Aibonito, Puerto Rico, Minor damage. Pilot stated tail rotor cut a wire on ground. Evidence shows helicoptert struck wire 18 to 20 feet above ground.
- [Accident 19830408011959A](https://openairdocs.org/incident/19830408011959A), Apr 8, 1983: Bell 47G3B1 (N1397X), Delano, CA, Substantial damage. Helicopter hit powerlines causing substantial damage during spraying operation.

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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