Individually Owned: 150,657
Corporate Owned: 137,281
Greenwood Lake Airport
Aircraft Accident/Incident Report
Ramapo, New York 10931
Saturday, April 3, 1999 16:00 EST
NTSB Narrative Summary Released at Completion of Accident
In cruise flight, the student pilot noticed a decrease in fuel pressure. He moved the fuel selector from 'BOTH' to 'RIGHT', and the fuel pressure increased. Several minutes later, the fuel pressure began to decrease again. He moved the fuel selector from 'RIGHT' to 'LEFT', the engine lost all power, and he made an forced landing to a field. The airplane held 52 gallons of useable fuel. The student pilot calculated that he had flown about 4 hours, according to the tachometer, with the mixture leaned to acquire a 10 gallon-per-hour (GPH) fuel consumption rate. According to the his calculations, 90 minutes of fuel should have remained. His calculations did not account for the difference between tachometer time verses the Hobbs meter. He later stated that after reviewing his calculations, he also did not account for fuel consumption during the three takeoffs and climbs during the 4 hour period. Additionally, his certified flight instructor (CFI) stated that he knew the student pilot was planning to conduct a solo cross-country flight on the day of the accident, but did not review the preflight planning, nor did he endorse his student's logbook.
NTSB Probable Cause Narrative
Fuel exhaustion due to the pilot's inaccurate fuel consumption calculations. A factor in the accident was the flight instructor's inadequate supervision of the solo cross-country flight.
Event Information
| Type of Event | Accident |
| Event Date | 4/3/1999 |
| Event Day of the Week | Saturday |
| Time of Event | 1600 |
| Event Time Zone | Eastern Standard Time |
| Event City | RAMAPO |
| Event State | NEW YORK |
| Event Country | -- |
| Zipcode of the event site | 10931 |
| Event Date Year | 1999 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | GREENWOOD LAKE AIRPORT |
| Event Location Nearest Airport ID | 4N1 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 6 |
| Degrees magnetic from airport | 90 |
| Airport Elevation | 791 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1545 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 200 |
| Weather Observation Facility ID | CDW |
| Elevation of weather observation facility | 173 |
| Distance of event from weather observation facility (units?) | 12 |
| Time Zone of the weather observation | EST |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | 18 |
| Dew Point at event time (in degress fahrenheit) | 7 |
| Wind Direction (degrees magnetic) | 180 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| 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 | 1 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 284 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Apr 6 1999 12:00AM |
| NTSB Notification Time | 1000 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 12 2000 11:30AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N2743V |
| NTSB Number | NYC99LA088 |
| 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 | 172XP |
| Aircraft Series Identifier | 172XP |
| Aircraft Serial Number | R1722230 |
| Certified Max Gross Weight | 2550 |
| 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 | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jul 11 1998 12:00AM |
| Airframe hours since last inspection | 52 |
| Airframe Hours | 3018 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | HUDSON TECHNOLOGIES INC. |
| Aircraft Owner Street Address | 275 NORTH MIDDLETOWN ROAD |
| Aircraft Owner City | PEARL RIVER |
| Aircraft Owner State | NY |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 10965 |
| Operator is an individual? | -- |
| Operator Name | |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | |
| Operator City | |
| Operator State | |
| Operator Country | |
| Operator Zip code | |
| 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) | Instructional |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | 1B1 |
| Departure City | COLUMBIA COUNTY |
| Departure State | NY |
| Departure Country | |
| Departure Time | 1510 |
| Departure Time Zone | EST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | 4N1 |
| Destination City | WEST MILFORD |
| Destination State | NJ |
| Destination Country | |
| Specific Phase of Flight | Cruise |
| 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 | 0 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |