Individually Owned: 150,657
Corporate Owned: 137,281
Isabel Valley Airport
Aircraft Accident/Incident Report
Mount Hamilton, California 94550
Tuesady, November 22, 1994 7:20 PST
NTSB Narrative Summary Released at Completion of Accident
THE PILOT PARKED THE AIRPLANE OVERNIGHT IN 20-DEGREE FAHRENHEIT WEATHER, AND THE TEMPERATURE WAS AROUND 32 DEGREES THE FOLLOWING MORNING AT THE TIME OF DEPARTURE. DURING THE PREFLIGHT INSPECTION, THE PILOT OBSERVED AN ACCUMULATION OF FROST ON THE FRONT WINDSHIELD. HE SCRAPED SOME OF IT OFF. THE PILOT REPORTED THAT HE DID NOT OBSERVE FROST ELSEWHERE ON THE AIRPLANE, BUT HE WAS UNABLE TO EXAMINE THE UPPER SURFACE OF THE WINGS. A PASSENGER STATED THAT HE OBSERVED FROST ON ALL EXPOSED UPPER AIRCRAFT SURFACES PRIOR TO THE TAKEOFF. DURING THE ENGINE RUN-UP AND THE GROUND ROLL PORTION OF THE TAKEOFF, ALL OF THE GAUGES INDICATED THAT NORMAL ENGINE OPERATION WAS BEING ACHIEVED. THE PILOT FURTHER REPORTED THAT WHEN HE ROTATED, THE WINDSHIELD BEGAN TO 'GLAZE OVER,' AND BY THE TIME HE HAD CLIMBED TO 100 FEET ABOVE GROUND LEVEL THE FORWARD VISIBILITY WAS ABOUT ZERO. THE PILOT STATED HE THEN RAISED THE AIRPLANE NOSE FOR A FEW SECONDS IN ORDER TO BE CERTAIN OF CLEARING THE OBSTACLES WHICH HE KNEW WERE LOCATED AT THE END OF THE RUNWAY. THE AIRPLANE WAS AT STALL SPEED AND DESCENDED INTO THE TERRAIN ADJACENT TO THE RUNWAY.
NTSB Probable Cause Narrative
the pilot's failure to obtain/maintain an adequate airspeed and inadvertent entry into a stall/mush condition during the initial climb due to frost on the airframe which impeded the airplane's climb performance. Contributing factors were the pilot's improper preflight inspection and inadequate frost removal procedures.
Event Information
| Type of Event | Accident |
| Event Date | 11/22/1994 |
| Event Day of the Week | Tuesday |
| Time of Event | 720 |
| Event Time Zone | Pacific Standard Time |
| Event City | MOUNT HAMILTON |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 94550 |
| Event Date Year | 1994 |
| Event Date Month | 11 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | ISABEL VALLEY |
| Event Location Nearest Airport ID | NONE |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 2100 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Witness |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 30 |
| Air Temperature at event time (in degrees celsius) | 0 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | Calm |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | 4 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 4 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1844 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Nov 22 1994 12:00AM |
| NTSB Notification Time | 920 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 6 2000 12:37PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N2221R |
| NTSB Number | LAX95LA038 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | T210H |
| Aircraft Series Identifier | T210H |
| Aircraft Serial Number | T210-0371 |
| Certified Max Gross Weight | 3400 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 6 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Apr 1 1994 12:00AM |
| Airframe hours since last inspection | 198 |
| Airframe Hours | 2468 |
| ELT Installed | Yes |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | MCM DIVERSIFIED, INC. |
| Aircraft Owner Street Address | 165 SAN PEDRO CIRCLE |
| Aircraft Owner City | SAN JOSE |
| Aircraft Owner State | CA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 95110 |
| Operator is an individual? | -- |
| Operator Name | DONALD E. HUNTLEY |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 1816 KIRKMONT DRIVE |
| Operator City | SAN JOSE |
| Operator State | CA |
| Operator Country | |
| Operator Zip code | 95124 |
| Operator Code | |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Business |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 719 |
| Departure Time Zone | PST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | SJC |
| Destination City | SAN JOSE |
| Destination State | CA |
| Destination Country | |
| Specific Phase of Flight | Takeoff |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:34AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 36 |
| Runway Length | 3000 |
| Runway Width | 35 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |