Great Rockford Airport
Aircraft Accident/Incident Report

Rockford, Illinois 61111
Thursday, January 19, 1984 12:51 CST

NTSB Narrative Summary Released at Completion of Accident

THE PLT WAS ON A MAINTENANCE TEST FLT TO CHECK THE LANDING GEAR HYDRAULIC POWER PAC. HE WAS UNABLE TO LOWER THE MAIN LANDING GEAR AND LANDED WITH THE NOSEWHEEL DOWN. EXAMINATION OF THE HYDRAULIC PAC AFTER THE ACCIDENT REVEALED THAT THE HYDRAULIC SYSTEM HAD NOT BEEN PROPERLY BLED & ENTRAPPED AIR, WHICH RESULTED IN AN EXTREMELY HIGH FLOW OF AIR THRU THE SECONDARY RELIEF VALVE, PREVENTING PROPER SYSTEM OPERATION.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 1/19/1984
Event Day of the Week Thursday
Time of Event 1251
Event Time Zone Central Standard Time
Event City ROCKFORD
Event State ILLINOIS
Event Country --
Zipcode of the event site 61111
Event Date Year 1984
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport GREAT ROCKFORD
Event Location Nearest Airport ID RFD
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 763
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1250 Central Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID RFD
Elevation of weather observation facility 736
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
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) 12
Air Temperature at event time (in degrees celsius) -17
Dew Point at event time (in degress fahrenheit) -13
Wind Direction (degrees magnetic) 230
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1299
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 24942
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N502RF
NTSB Number CHI84LA090
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 210D
Aircraft Series Identifier 210D
Aircraft Serial Number 21058302
Certified Max Gross Weight 3100
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 Sep 15 1983 12:00AM
Airframe hours since last inspection 20
Airframe Hours 4850
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name LAWRENCE N. LAMB
Aircraft Owner Street Address 5657 WISPERING LANE
Aircraft Owner City ROCKFORD
Aircraft Owner State IL
Aircraft Owner Country
Aircraft Owner Zipcode 61111
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 1C8
Departure City ROCKFORD
Departure State IL
Departure Country
Departure Time 1130
Departure Time Zone CST
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 24
Runway Length 5000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --