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NTSB Report
June 1, 1991 · Cessna 310R · N3227A
Westerly, RI
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 1, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Westerly, RI
Aircraft
Cessna 310R
Tail Number
N3227A
Operator
Pedro a Romero
Injuries
None
Aircraft Damage
Substantial
NTSB Number
NYC91LA153
THE CESSNA 310 WAS ON FINAL APPROACH WHEN THE PILOT FELT A BUFFET AND LOST POWER IN THE RIGHT ENGINE. HE MADE A MISSED APPROACH AND DIVERTED TO A VFR AIRPORT. HE LANDED WITH THE RIGHT PROPELLER AND RIGHT MAIN LANDING GEAR MISSING FROM THE AIRPLANE, WHCIH WERE NEVER RECOVERED. POST ACCIDENT INVESTIGATION DISCLOSED THE THREADS OF THE PROPELLER MOUNTING BOLTS CONTAINED THE THREADS FROM THE PROPELLER HUB. THIS IS INDICATIVE OF THE PROPELLER HUB THREADS HAVING BEEN OVER TORQUED AT SOME TIME IN THEIR LIFE. ADDITIONAL INVESTIGATION DISCLOSED THE PROPELLER HAD LAST BEEN INSTALLED 499 HOURS PRIOR TO PROPELLER SEPARATION. THE AIRPLANE HAD BEEN PLACED IN A PROGRESSIVE INSPECTION PROGRAM WITH 50 HOUR INTERVALS FOR A 200 HOUR CYCLE. THE LOG BOOKS INDICATE THE AIRPLANE HAD BEEN 65 HOURS SINCE ITS LAST INSPECTION.
NTSB Probable Cause
IMPROPER INSTALLATION OF THE RIGHT PROPELLER WHICH RESULTED IN THREAD FAILURE IN THE PROPELLER HUB AND SEPARATION OF THE PROPELLER IN FLIGHT. A FACTOR RELATED TO THE ACCIDENT WAS THE RIGHT PROPELLER STRIKING THE RIGHT MAIN LANDING GEAR CAUSING ITS SEPARATION FROM THE AIRPLANE AS THE PROPELLER DEPARTED THE AIRPLANE.
Full Narrative
THE CESSNA 310 WAS ON FINAL APPROACH WHEN THE PILOT FELT A BUFFET AND LOST POWER IN THE RIGHT ENGINE. HE MADE A MISSED APPROACH AND DIVERTED TO A VFR AIRPORT. HE LANDED WITH THE RIGHT PROPELLER AND RIGHT MAIN LANDING GEAR MISSING FROM THE AIRPLANE, WHCIH WERE NEVER RECOVERED. POST ACCIDENT INVESTIGATION DISCLOSED THE THREADS OF THE PROPELLER MOUNTING BOLTS CONTAINED THE THREADS FROM THE PROPELLER HUB. THIS IS INDICATIVE OF THE PROPELLER HUB THREADS HAVING BEEN OVER TORQUED AT SOME TIME IN THEIR LIFE. ADDITIONAL INVESTIGATION DISCLOSED THE PROPELLER HAD LAST BEEN INSTALLED 499 HOURS PRIOR TO PROPELLER SEPARATION. THE AIRPLANE HAD BEEN PLACED IN A PROGRESSIVE INSPECTION PROGRAM WITH 50 HOUR INTERVALS FOR A 200 HOUR CYCLE. THE LOG BOOKS INDICATE THE AIRPLANE HAD BEEN 65 HOURS SINCE ITS LAST INSPECTION.
Flight
Event TypeAccident
Event Time16:00 EDT
Nearest AirportWesterly State (0nm)
Runway7
Runway Length4000 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 310R
Tail NumberN3227A
Aircraft CategoryAir
DamageSubstantial
OperatorPedro a Romero
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · IO-520-MB · Reciprocating · 285
Seats6
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 37 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO