- Date
- July 30, 1966
- Place
- Grand Canyon, AZ · GRAND CANYON, AZ
- Injuries
- 6 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N4680PPiper PA-23
- Status
- Completed · report March 21, 1967
- Report
- Brief approved by the director
- Case key
- 121325
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 ---------------------------------------------------------------------------------------------------------------------------- 3-3922 66/7/30 NR.GRAND CANYON ARIZ PIPER PA-23 CR- 0 0 1 COMMERCIAL COMMERCIAL, FL.INSTR., TIME - 0800 N4680P PX- 0 0 5 AIR TAXI-PASSG AGE 46, 12184 TOTAL DAMAGE-SUBSTANTIAL OT- 0 0 0 HOURS, 60 IN TYPE, INSTRUMENT RATED. TYPE OF ACCIDENT PHASE OF OPERATION ENGINE FAILURE OR MALFUNCTION IN FLIGHT: NORMAL CRUISE WHEELS-UP LANDING: LEVEL OFF/TOUCHDOWN PROBABLE CAUSE(S) POWERPLANT - ENGINE STRUCTURE: PISTON,PISTON RINGS MISCELLANEOUS ACTS,CONDITIONS - PRESSURE,NONE MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (OWNER PERSONNEL) PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT FACTOR(S) WEATHER - HIGH DENSITY ALTITUDE COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE WEATHER BRIEFING - BRIEFED BY WEATHER BUREAU PERSONEL, BY PHONE WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND SKY CONDITION CEILING AT ACCIDENT SITE CLEAR UNLIMITED VISIBILITY AT ACCIDENT SITE PRECIPITATION AT ACCIDENT SITE 5 OR OVER(UNLIMITED) NONE OBSTRUCTIONS TO VISION AT ACCIDENT SITE TEMPERATURE-F NONE 60 TYPE OF WEATHER CONDITIONS TYPE OF FLIGHT PLAN VFR NONE REMARKS- RT PROP SURGED 200 RPM.PLT KNEW THIS PRIOR T/O. L.ENG.NO.5 PISTON PIN PLUG FAILED.UNABLE HOLD ALT.
Aircraft
- Registration
- N4680P
- Reported as
- Piper PA-23
- Category
- Airplane
- 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.