- Date
- April 17, 1975
- Place
- King City, CA · KING CITY, CA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N9770CHiller Acft UH-12E
- Status
- Completed · report June 17, 1975
- Report
- Brief approved by the director
- FAA report
- 19750417008519A
- Case key
- 148389
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
NTSB brief
NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.
---------------------------------------------------------------------------------------------------------------------------- FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA F S M/N PURPOSE ---------------------------------------------------------------------------------------------------------------------------- 3-1124 75/4/17 NR.KING CITY,CA HILLER ACFT UH-12E CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 30, 3000 TIME - 0550 N9770C PX- 0 0 0 ASSOC CROP CTL ACTIVITY TOTAL HOURS, 1000 IN DAMAGE-SUBSTANTIAL OT- 0 0 0 TYPE, NOT INSTRUMENT RATED. DEPARTURE POINT INTENDED DESTINATION QUAIL CREEK,CA KING CITY,CA TYPE OF ACCIDENT PHASE OF OPERATION AIRFRAME FAILURE: IN FLIGHT IN FLIGHT: NORMAL CRUISE PROBABLE CAUSE(S) ROTORCRAFT - MISCELLANEOUS UNITS AND ASSEMBLIES: TAIL BOOMS/PYLONS/CONES MISCELLANEOUS ACTS,CONDITIONS - IMPROPER CLEARANCE-TOLERANCE MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION FACTOR(S) MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE SPECIAL DATA KIND OF OPERATION - FERRY REMARKS- WOBBLE PLATE PYLON ASSEMBLY FAILED.
Aircraft
- Registration
- N9770C
- Reported as
- Hiller Acft UH-12E
- Category
- Helicopter
- Engine
- reciprocating
- Damage
- Substantial damage
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N9770C · 6
Matched to the same aircraft by N-number and date.
NTSB LAX83LA360Accident · No injuriesLimited investigationFinal reportLos Banos, CAThe plt had dropped off a flagman in an area to be sprayed, & had just departed & obtained translational lift when the eng lost power. The acft touched down in a freshly irrigated cotton field, rolled over inverted & burst into flames. The 'b' nut which…NTSB LAX80DVA22Accident · No injuriesClosedMerced, CANTSB OAK76FVM47Accident · No injuriesClosedSalinas, CANTSB LAX74FUM12Accident · No injuriesClosedBrawley, CANTSB ANC67A0065Accident · No injuriesClosedEagle, AKNTSB ANC66A0048Accident · Minor injuriesClosedFairbanks, AK