# Kaman HH-43 B/F

- Type: Aircraft model (FAA registry)
- Registry code: 4800705
- Manufacturer (registry): KAMAN
- Model: HH-43 B/F
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 1 · Turbo-shaft
- Seats: 12
- Weight class: Up to 12,499 lb
- Certification: Not type certificated
- Registered aircraft: 1
- Page: https://openairdocs.org/model/kaman-hh-43-b-f

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft (1)

- [N4069R](https://openairdocs.org/aircraft/N4069R): [Olympic Jet Inc](https://openairdocs.org/faa-owner/OLYMPIC%20JET%20INC), [Olympia, WA](https://openairdocs.org/faa-place/WA/Olympia), built 1964, S/N 64-17558

## NTSB investigations (5)

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 SEA96LA219](https://openairdocs.org/ntsb/SEA96LA219), Sep 23, 1996: Kaman HH-43 B/F (N4069R), Troy, MT, substantial damage. Probable cause: failure of the freewheeling sprag unit bearings for undetermined reasons.
- [NTSB SEA94LA179](https://openairdocs.org/ntsb/SEA94LA179), Jul 19, 1994: Kaman HH43F (N324WN), John Day, OR, substantial damage. Probable cause: FAILURE OF A TURBINE COMPRESSOR WHEEL. THE LACK OF SUITABLE TERRAIN FOR AN AUTOROTATION/FORCED LANDING WAS A FACTOR.
- [NTSB ATL94LA035](https://openairdocs.org/ntsb/ATL94LA035), Dec 29, 1993: Kaman HH-43B/F (N5197W), Mobile, AL, substantial damage. Probable cause: AN INADEQUATE MAJOR REPAIR BY COMPANY MAINTENANCE PERSONNEL WHO FAILED TO INSTALL THE COTTER PIN WHICH SECURED THE RETAINING NUT OF THE RIGHT MAIN ROTOR HUB TEETER PIN.
- [NTSB SEA82FYK08](https://openairdocs.org/ntsb/SEA82FYK08), Feb 22, 1982: Kaman HH-43F (N4524), Sutherlin, OR, destroyed
- [NTSB SEA79FT123](https://openairdocs.org/ntsb/SEA79FT123), Aug 24, 1979: Kaman HH-43F (N4524), Hamilton, MT, destroyed

## FAA accident and incident reports (5)

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.

- [Accident 19960923029669A](https://openairdocs.org/incident/19960923029669A), Sep 23, 1996: Kaman HH43BF (N4069R), Troy, MT, Substantial damage. External load repositioning flight needles split. Lost altitude. Rotor decay. Impacted. Sprague clutch failed.
- [Accident 19940719024449A](https://openairdocs.org/incident/19940719024449A), Jul 19, 1994: Kaman HH43BF (N324WN), John Day, OR, Substantial damage. Lost power during long line log ops. Autorotated into trees. NR2 engine compressor wheel failed and departed engine
- [Accident 19931229047439A](https://openairdocs.org/incident/19931229047439A), Dec 29, 1993: Kaman HH43BF (N5197W), Mobile, AL, Substantial damage. Partial loss rotor control. Dropped logs. Autorotated to hard landing. Cotter pin teeter pin retention nut absent.
- [Accident 19820222004969A](https://openairdocs.org/incident/19820222004969A), Feb 22, 1982: Kaman HH43FCHOPER (N4524), Sutherlin, OR, Substantial damage. Rotor blade failed during external load logging operation. Crash occurred as helicopter was hovering after drop.
- [Accident 19790824027569A](https://openairdocs.org/incident/19790824027569A), Aug 24, 1979: Kaman HH43FCHOPER (N4524), Hamilton, MT, Destroyed. Engine failed. The shaft, turbine, p/n 1-100-620-01 had fractured.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.