Individually Owned: 150,657
Corporate Owned: 137,281
Deer Valley Airport
Aircraft Accident/Incident Report
Phoenix, Arizona 85027
Monday, September 27, 2010 10:54 MST
NTSB Narrative Summary Released at Completion of Accident
During a local flight, the airplane departed and climbed to over 8,000 feet mean sea level (msl) on the outbound leg to the north. About 44 minutes into the flight, the airplane began descending after a course reversal to the south on the return for landing. The pilot entered the landing pattern, however, due to multiple airplanes in the traffic pattern he extended downwind, and asked the controller in the air traffic control tower to call his turn to base leg. After getting established on a 3-mile final, the controller notified the pilot that the airplane appeared low. The pilot responded that he was having engine problems and would try to make it to the runway.
Witnesses reported that the airplane was low on final approach and that the engine was sputtering and backfiring. The airplane subsequently collided with a building short of the runway.
Postaccident examination of the wreckage found an engine monitoring unit on board. A download of the data indicated normal readings until the return descent where it appeared the pilot didn't enrich the mixture. As the pilot was turning onto the base leg, data on the engine monitoring system indicated that the engine revolutions per minute (rpm) started a gradual decrease, and the exhaust gas temperatures (EGT) for all six cylinders became erratic. The EGTs for cylinders one, two, and six dropped slightly, and stayed at higher values than the other cylinders. When the EGTs became erratic, the engine was likely losing combustion (power) in some cylinders.
During the postaccident engine examination, the mixture lever was found loose on the throttle shaft but it could not be determined if it was functioning properly at impact. The reason for the partial loss of power could not be determined.
NTSB Probable Cause Narrative
A partial loss of engine power during approach for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
Event Information
| Type of Event | Accident |
| Event Date | 9/27/2010 |
| Event Day of the Week | Monday |
| Time of Event | 1054 |
| Event Time Zone | Mountain Standard Time |
| Event City | Phoenix |
| Event State | ARIZONA |
| Event Country | -- |
| Zipcode of the event site | 85027 |
| Event Date Year | 2010 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 334123N |
| Event Location Longitude | 1120539W |
| Event Location Airport | Deer Valley |
| Event Location Nearest Airport ID | DVT |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 1478 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1053 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | KDVT |
| Elevation of weather observation facility | 1478 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | MST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 34 |
| Dew Point at event time (in degress fahrenheit) | 8 |
| Wind Direction (degrees magnetic) | 180 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.91 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | 1 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 31963 |
| NTSB Notification Source | FAA AWP Operations Center |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Oct 28 2013 1:16PM |
| User who most recently changed record | coos |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N1600W |
| NTSB Number | WPR10FA473 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | Unknown |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | Ground |
| Aircraft Explosion | Ground |
| Aircraft Manufacturer's Full Name | Hawker Beechcraft |
| Aircraft Model | F33 |
| Aircraft Series Identifier | A |
| Aircraft Serial Number | CE-380 |
| Certified Max Gross Weight | -- |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 5 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | May 1 2010 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 6950 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | John C Gomes III Trustee |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Scottsdale |
| Aircraft Owner State | AZ |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 85254 |
| Operator is an individual? | No |
| Operator Name | John C Gomes III Trustee |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | Scottsdale |
| Operator State | AZ |
| Operator Country | USA |
| Operator Zip code | 85254 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | -- |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | DVT |
| Departure City | Phoenix |
| Departure State | AZ |
| Departure Country | USA |
| Departure Time | 938 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | DVT |
| Destination City | Phoenix |
| Destination State | AZ |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Aug 8 2013 11:13AM |
| User who most recently changed record | plah |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 07L |
| Runway Length | 4508 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |