Hiller Acft UH-12L N9730C

4 September 1969 · Mammoth Lks, California, United States · Minor injuries

Summary

On 4 September 1969 at about 14:50 local time, a Hiller Acft UH-12L registered N9730C, operated by Lake Tahoe HEL, was involved in an accident during in flight near Mammoth Lks, California, United States. 2 people were on board and 2 had minor injuries. The aircraft was substantially damaged. No probable cause statement is available for this record.

The record

Date: 4 September 1969 at 14:50
Classification: Accident
Location: Mammoth Lks, California, United States
Coordinates: Not recorded
Aircraft: Hiller Acft UH-12L
Registration: N9730C
Category: Helicopter
Engines: 1
Operator: Lake Tahoe HEL
Operating rule: Fixed Base Operator
Purpose of flight: Search and Rescue
Phase of flight: In Flight
Route: S → Lake Ediza, Calif
Aircraft damage: Substantial
Weather: VMC
Light: Daylight
NTSB number: 3-4192

People

2 people had minor injuries.

On board	Died	Serious	Minor	Uninjured
2	0	0	2	0

Probable cause

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

BELLOWS STUCK IN DENSITY CONTROLLER.

Quoted verbatim from the NTSB record.

No coordinates. The source record does not contain a latitude and longitude, so this accident cannot be shown on the map. Everything else about it is on this page.

Source

NTSB record 3-4192, from the public aviation accident database.

Records from before 1982 are not in the NTSB's online investigation search. The full dataset can be downloaded from data.ntsb.gov/avdata.

Also in

United States 170,864 1969 5,082

Other Hiller Acft UH-12L accidents

Date	Aircraft	Location	Operator	Outcome	Died
15 Sep 1981	Hiller Acft UH-12L N871H	Malin, Oregon, United States no coordinates	Howard Zweifel	No injuries	-

Other accidents in this area

Date	Aircraft	Location	Operator	Outcome	Died
2 Feb 1969	Piper PA-28 N9402J	Lacosta Is, Florida, United States no coordinates	-	No injuries	-
1 Mar 1969	Cessna 310 N1064Q	Orlando, Florida, United States no coordinates	-	No injuries	-
15 Mar 1969	Luscombe 8A N1993B	Sedalia, Colorado, United States no coordinates	-	No injuries	-
22 Apr 1969	Beechcraft H35 N5430D	Union Lake, Michigan, United States no coordinates	-	No injuries	-
23 Mar 1969	Piper PA-22 N3413Z	Midlothian, Illinois, United States no coordinates	-	No injuries	-
30 May 1969	Taylr Titch M-3 N1889	Watkins, Colorado, United States no coordinates	-	Fatal	1

All 170,864 records in United States