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NTSB Report
January 19, 1984 · Cessna 210D · N502RF
Rockford, IL
Overview
Report Status
Preliminary report
Event Type
Accident
Date
January 19, 1984
Injury Outcomes
No injuries (2 uninjured)
Location
Rockford, IL
Aircraft
Cessna 210D
Tail Number
N502RF
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CHI84LA090
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.
Full Narrative
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.
Flight
Event TypeAccident
Event Time12:51 CST
Nearest AirportGreat Rockford (0nm N)
Runway24
Runway Length5000 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 210D
Tail NumberN502RF
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-A · Reciprocating · 285
Seats6
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 40 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind230° @ 7 kt
Visibility12 sm
CeilingNone
Temperature / Dew Point1 C / 9 C
Altimeter30.00 inHg
Observation Time17:50
Weather SourceWFAC