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NTSB Report
September 9, 1990 · Cessna 182R · N4944H
Evington, VA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 9, 1990
Injury Outcomes
2 injuries (2 fatalities)
Location
Evington, VA
Aircraft
Cessna 182R
Tail Number
N4944H
Operator
Shelby Aviation
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
BFO90DID02
THE ACFT WAS EN ROUTE IFR AT 6000 FT MSL WHEN THE PLT ASKED ATC FOR THE CLOUD BASE HEIGHT AND THEN SHORTLY AFTERWARDS HE REPORTED MALFUNCTION OF THE ATTITUDE INDICATOR. THE PLT ALSO STATED 'ALL VACUUM PUMPS ARE LOST.' THE PLT LATER INDICATED HE WAS UNAWARE OF HIS ATTITUDE. WITHNESSES REPORTED THE ACFT DESCENDED IN A NOSE DOWN AND STEEP BANK ATTITUDE BEFORE IT CRASHED. WITNESSES REPORTED FOG AND RAIN AT THE CRASH. THE ACFT DISINTEGRATED ON IMPACT AND WAS SCATTERED ABOUT 105 FT. THE INVESTIGATION REVEALED THE ACFT FLIGHTPATH AT IMPACT WAS 45 DEGREES DOWN. EXAMINATION OF THE VACUUM PUMP DID NOT REVEAL EVIDENCE OF PREIMPACT MECHANICAL MALFUNCTION.
NTSB Probable Cause
THE PILOT'S FAILURE TO MAINTAIN CONTROL OF THE AIRCRAFT BECAUSE OF SPATIAL DISORIENTATION. A CONTRIBUTING CAUSE IS FAILURE OF THE VACUUM SYSTEM.
Full Narrative
THE ACFT WAS EN ROUTE IFR AT 6000 FT MSL WHEN THE PLT ASKED ATC FOR THE CLOUD BASE HEIGHT AND THEN SHORTLY AFTERWARDS HE REPORTED MALFUNCTION OF THE ATTITUDE INDICATOR. THE PLT ALSO STATED 'ALL VACUUM PUMPS ARE LOST.' THE PLT LATER INDICATED HE WAS UNAWARE OF HIS ATTITUDE. WITHNESSES REPORTED THE ACFT DESCENDED IN A NOSE DOWN AND STEEP BANK ATTITUDE BEFORE IT CRASHED. WITNESSES REPORTED FOG AND RAIN AT THE CRASH. THE ACFT DISINTEGRATED ON IMPACT AND WAS SCATTERED ABOUT 105 FT. THE INVESTIGATION REVEALED THE ACFT FLIGHTPATH AT IMPACT WAS 45 DEGREES DOWN. EXAMINATION OF THE VACUUM PUMP DID NOT REVEAL EVIDENCE OF PREIMPACT MECHANICAL MALFUNCTION.
Flight
Event TypeAccident
Event Time22:18 EDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 182R
Tail NumberN4944H
Aircraft CategoryAir
DamageDestroyed
OperatorShelby Aviation
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-470 · Reciprocating · 230
Seats4
People & Injuries
Injury Summary2 injuries (2 fatalities)
Fatal2
Serious0
Minor0
Uninjured0
Total2
Crew 1Age 39 · First Class
Conditions
ConditionsVMC
LightDark Night
Wind40° @ 10 kt
Visibility3 sm
CeilingOvercast 1300 ft
Temperature / Dew Point66 F / 64 F
Altimeter30.10 inHg
Observation Time02:45
Weather SourceWFAC