- Date
- April 18, 1974
- Place
- Grimes, CA · GRIMES, CA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N73646Grumman G-164
- Status
- Completed · report June 7, 1974
- Report
- Brief approved by the director
- Case key
- 124412
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 ---------------------------------------------------------------------------------------------------------------------------- 3-1094 74/4/18 GRIMES,CALIF GRUMMAN G-164 CR- 0 0 1 COMMERCIAL COMMERCIAL, AGE 47, 12000 TIME - 0630 N73646 PX- 0 0 0 ASSOC CROP CTL ACTIVITY TOTAL HOURS, 1000 IN DAMAGE-SUBSTANTIAL OT- 0 0 0 TYPE, NOT INSTRUMENT RATED. NAME OF AIRPORT - THAYER BROS. DEPARTURE POINT INTENDED DESTINATION GRIMES,CALIF LOCAL TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION TAKEOFF: INITIAL CLIMB NOSE OVER/DOWN LANDING: LEVEL OFF/TOUCHDOWN PROBABLE CAUSE(S) PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (OWNER PERSONNEL) POWERPLANT - ENGINE STRUCTURE: BLOWER,IMPELLER ASSEMBLY MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM MISCELLANEOUS ACTS,CONDITIONS - OVERHEATED TERRAIN - HIGH VEGETATION PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND SPECIAL DATA TOTAL HOURS IN CROP CONTROL - 9999 KIND OF OPERATION - SEEDING CROPS KIND OF CROP - RICE TYPE OF CHEMICAL USED - DRY CHEMICAL-NONTOXIC PILOT' S SEAT BELT -FASTENED-PROPERLY GLOVES - USED GOGGLES - USED CRASH HELMET - AVAILABLE USED COCKPIT CRASHPAD - NOT INSTALLED CRASH BAR - INSTALLED TANK/HOPPER-LOCATION - FORWARD OF PILOT TERRAIN-TYPE -LEVEL,FLAT ELEVATION-AREA BEING TREATED-FEET - 46 REMARKS- ACFT LND IN FIELD OF TALL WHEAT.FAILURE TO PRE-LUBE BLOWER SECTION CAUSED IMPELLER SECTION TO FAIL
Aircraft
- Registration
- N73646
- Reported as
- Grumman G-164
- Category
- Airplane
- Engine
- reciprocating
- Damage
- Substantial damage
- Airport
- Thayer Bros.
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.
Other investigations on N73646 · 1
Matched to the same aircraft by N-number and date.